{"id":74034,"date":"2024-06-24T16:45:59","date_gmt":"2024-06-24T09:45:59","guid":{"rendered":"https:\/\/itviec.com\/blog\/?p=74034"},"modified":"2024-06-24T16:45:59","modified_gmt":"2024-06-24T09:45:59","slug":"hoc-kotlin","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/hoc-kotlin\/","title":{"rendered":"H\u1ecdc Kotlin t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung b\u00e0i vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Vi_sao_nen_hoc_Kotlin\" >V\u00ec sao n\u00ean h\u1ecdc Kotlin?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Ai_nen_hoc_Kotlin\" >Ai n\u00ean h\u1ecdc Kotlin?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Cac_kien_thuc_hoc_Kotlin_co_ban\" >C\u00e1c ki\u1ebfn th\u1ee9c h\u1ecdc Kotlin c\u01a1 b\u1ea3n\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Cac_kien_thuc_hoc_Kotlin_nang_cao\" >C\u00e1c ki\u1ebfn th\u1ee9c h\u1ecdc Kotlin n\u00e2ng cao<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Ung_dung_Kotlin_trong_phat_trien_phan_mem\" >\u1ee8ng d\u1ee5ng Kotlin trong ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Tai_lieu_hoc_Kotlin_tham_khao\" >T\u00e0i li\u1ec7u h\u1ecdc Kotlin tham kh\u1ea3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Loi_khuyen_va_kinh_nghiem_hoc_tap_Kotlin_hieu_qua\" >L\u1eddi khuy\u00ean v\u00e0 kinh nghi\u1ec7m h\u1ecdc t\u1eadp Kotlin hi\u1ec7u qu\u1ea3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Cac_cau_hoi_thuong_gap_ve_hoc_Kotlin\" >C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 h\u1ecdc Kotlin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/itviec.com\/blog\/hoc-kotlin\/#Ket_luan_Lo_trinh_hoc_Kotlin\" >K\u1ebft lu\u1eadn L\u1ed9 tr\u00ecnh h\u1ecdc Kotlin<\/a><\/li><\/ul><\/nav><\/div>\n<p><em><strong>Kotlin, ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh hi\u1ec7n \u0111\u1ea1i do <a href=\"https:\/\/www.jetbrains.com\/\" target=\"_blank\" rel=\"noopener\">JetBrains<\/a> ph\u00e1t tri\u1ec3n, \u0111\u00e3 nhanh ch\u00f3ng tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng ng\u00f4n ng\u1eef \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng nh\u1ea5t trong c\u1ed9ng \u0111\u1ed3ng ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. V\u1edbi c\u00fa ph\u00e1p ng\u1eafn g\u1ecdn, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch cao v\u1edbi Java v\u00e0 hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i, Kotlin kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh vi\u1ebft m\u00e3 m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i m\u1edbi cho c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n kh\u00e1m ph\u00e1 l\u1ed9 tr\u00ecnh h\u1ecdc Kotlin &#8211; ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh c\u1ee7a t\u01b0\u01a1ng lai, t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao \u0111\u1ec3 n\u00e2ng cao k\u1ef9 n\u0103ng l\u1eadp tr\u00ecnh c\u1ee7a m\u00ecnh!<\/strong><\/em><\/p>\n<p><b>\u0110\u1ecdc b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 hi\u1ec3u h\u01a1n:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">V\u00ec sao n\u00ean h\u1ecdc Kotlin?<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1c ki\u1ebfn th\u1ee9c h\u1ecdc Kotlin c\u01a1 b\u1ea3n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1c ki\u1ebfn th\u1ee9c h\u1ecdc Kotlin n\u00e2ng cao<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Kotlin<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u1ed9t v\u00e0i ngu\u1ed3n t\u00e0i nguy\u00ean h\u1ecdc Kotlin<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L\u1eddi khuy\u00ean v\u00e0 kinh nghi\u1ec7m h\u1ecdc Kotlin hi\u1ec7u qu\u1ea3\u00a0\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Vi_sao_nen_hoc_Kotlin\"><\/span><strong>V\u00ec sao n\u00ean h\u1ecdc Kotlin?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Kotlin, ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh hi\u1ec7n \u0111\u1ea1i do <\/span><a href=\"https:\/\/www.jetbrains.com\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">JetBrains<\/span><\/a> <span style=\"font-weight: 400;\">ph\u00e1t tri\u1ec3n, ra \u0111\u1eddi v\u00e0o n\u0103m 2011 v\u00e0 ch\u00ednh th\u1ee9c \u0111\u01b0\u1ee3c Google c\u00f4ng b\u1ed1 h\u1ed7 tr\u1ee3 cho Android v\u00e0o n\u0103m 2017. Kotlin nhanh ch\u00f3ng tr\u1edf th\u00e0nh ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u1ed5 bi\u1ebfn th\u1ee9 hai cho Android sau Java, nh\u1edd nh\u1eefng \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i nh\u01b0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Hi\u1ec7n \u0111\u1ea1i v\u00e0 \u0111\u01b0\u1ee3c Google h\u1ed7 tr\u1ee3:<\/b><span style=\"font-weight: 400;\"> Kotlin l\u00e0 ng\u00f4n ng\u1eef ch\u00ednh th\u1ee9c cho Android, \u0111\u01b0\u1ee3c Google t\u00edch c\u1ef1c ph\u00e1t tri\u1ec3n v\u00e0 h\u1ed7 tr\u1ee3.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C\u00fa ph\u00e1p ng\u1eafn g\u1ecdn, d\u1ec5 h\u1ecdc:<\/b><span style=\"font-weight: 400;\"> Kotlin c\u00f3 c\u00fa ph\u00e1p s\u00fac t\u00edch, d\u1ec5 \u0111\u1ecdc h\u01a1n Java, gi\u00fap ng\u01b0\u1eddi m\u1edbi d\u1ec5 d\u00e0ng ti\u1ebfp c\u1eadn v\u00e0 h\u1ecdc ng\u00f4n ng\u1eef nhanh ch\u00f3ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>An to\u00e0n b\u1ed9 nh\u1edb:<\/b><span style=\"font-weight: 400;\"> Kotlin \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi t\u00ednh an to\u00e0n b\u1ed9 nh\u1edb cao, gi\u1ea3m thi\u1ec3u nguy c\u01a1 l\u1ed7i null pointer exception.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Hi\u1ec7u su\u1ea5t cao:<\/b><span style=\"font-weight: 400;\"> Kotlin \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch sang bytecode Java, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ee9ng d\u1ee5ng t\u1ed1t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C\u1ed9ng \u0111\u1ed3ng ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd:<\/b><span style=\"font-weight: 400;\"> C\u1ed9ng \u0111\u1ed3ng Kotlin ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng v\u1edbi nhi\u1ec1u t\u00e0i li\u1ec7u, th\u01b0 vi\u1ec7n v\u00e0 c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 phong ph\u00fa.<\/span><\/li>\n<\/ul>\n<blockquote><p><em>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/kotlin-la-gi\/\" target=\"_blank\" rel=\"noopener\"><strong>T\u1ed5ng quan Kotlin l\u00e0 g\u00ec<\/strong><\/a><\/em><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Ai_nen_hoc_Kotlin\"><\/span><b>Ai n\u00ean h\u1ecdc Kotlin?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>L\u1eadp tr\u00ecnh vi\u00ean Android:<\/b><span style=\"font-weight: 400;\"> Kotlin l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh b\u1eaft bu\u1ed9c c\u1ea7n h\u1ecdc cho c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean Android.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>L\u1eadp tr\u00ecnh vi\u00ean Java:<\/b><span style=\"font-weight: 400;\"> Kotlin gi\u00fap n\u00e2ng cao k\u1ef9 n\u0103ng l\u1eadp tr\u00ecnh Java, m\u1edf r\u1ed9ng c\u01a1 h\u1ed9i ngh\u1ec1 nghi\u1ec7p.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u l\u1eadp tr\u00ecnh:<\/b><span style=\"font-weight: 400;\"> Kotlin l\u00e0 ng\u00f4n ng\u1eef d\u1ec5 h\u1ecdc, ph\u00f9 h\u1ee3p cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u l\u1eadp tr\u00ecnh di \u0111\u1ed9ng.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cac_kien_thuc_hoc_Kotlin_co_ban\"><\/span><b>C\u00e1c ki\u1ebfn th\u1ee9c h\u1ecdc Kotlin c\u01a1 b\u1ea3n\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>C\u00e0i \u0111\u1eb7t m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 b\u1eaft \u0111\u1ea7u v\u1edbi Kotlin, tr\u01b0\u1edbc ti\u00ean b\u1ea1n c\u1ea7n c\u00e0i \u0111\u1eb7t m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n. Kotlin c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u IDE ph\u1ed5 bi\u1ebfn nh\u01b0 <\/span><a href=\"https:\/\/www.jetbrains.com\/idea\/download\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">IntelliJ IDEA<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"http:\/\/cjwkcajwgpczbhbheiwaosqwqt\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Android Studio<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/www.eclipse.org\/downloads\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Eclipse<\/span><\/a><span style=\"font-weight: 400;\"> v\u00e0 <\/span><a href=\"https:\/\/code.visualstudio.com\/download\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Visual Studio Code<\/span><\/a><span style=\"font-weight: 400;\">. B\u1ea1n s\u1ebd c\u1ea7n c\u00e0i \u0111\u1eb7t JDK (Java Development Kit) v\u00ec Kotlin ch\u1ea1y tr\u00ean JVM (Java Virtual Machine). Sau khi c\u00e0i \u0111\u1eb7t JDK, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea3i v\u00e0 c\u00e0i \u0111\u1eb7t IDE m\u00e0 b\u1ea1n mu\u1ed1n s\u1eed d\u1ee5ng, sau \u0111\u00f3 th\u00eam plugin Kotlin \u0111\u1ec3 b\u1eaft \u0111\u1ea7u vi\u1ebft m\u00e3 Kotlin.<\/span><\/p>\n<p><b>B\u01b0\u1edbc 1: C\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m IntelliJ IDEA (ho\u1eb7c Android Studio)<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Truy c\u1eadp trang web ch\u00ednh th\u1ee9c c\u1ee7a <\/span><a href=\"https:\/\/www.jetbrains.com\/idea\/download\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">IntelliJ IDEA<\/span><\/a><span style=\"font-weight: 400;\">, ho\u1eb7c c\u1ee7a <\/span><a href=\"http:\/\/cjwkcajwgpczbhbheiwaosqwqt\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Android Studio.<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u1ea3i xu\u1ed1ng phi\u00ean b\u1ea3n ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 \u0111i\u1ec1u h\u00e0nh c\u1ee7a b\u1ea1n (Windows, macOS, Linux).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ch\u1ea1y tr\u00ecnh c\u00e0i \u0111\u1eb7t v\u00e0 l\u00e0m theo h\u01b0\u1edbng d\u1eabn \u0111\u1ec3 ho\u00e0n t\u1ea5t c\u00e0i \u0111\u1eb7t.<\/span><\/li>\n<\/ul>\n<p><b>B\u01b0\u1edbc 2: C\u00e0i \u0111\u1eb7t plugin Kotlin cho IntelliJ IDEA<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u1edf IntelliJ IDEA v\u00e0 ch\u1ecdn <\/span><b>File<\/b><span style=\"font-weight: 400;\"> &gt; <\/span><b>Settings<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Trong c\u1eeda s\u1ed5 <\/span><b>Settings<\/b><span style=\"font-weight: 400;\">, t\u00ecm ki\u1ebfm &#8220;Kotlin&#8221; v\u00e0 ch\u1ecdn <\/span><b>Plugins<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u00ecm plugin <\/span><b>Kotlin<\/b><span style=\"font-weight: 400;\"> trong danh s\u00e1ch v\u00e0 nh\u1ea5p v\u00e0o n\u00fat <\/span><b>Install<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Kh\u1edfi \u0111\u1ed9ng l\u1ea1i IntelliJ IDEA \u0111\u1ec3 plugin \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng.<\/span><\/li>\n<\/ul>\n<p><b>B\u01b0\u1edbc 3: C\u00e0i \u0111\u1eb7t JDK (Java Development Kit)<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Truy c\u1eadp trang web ch\u00ednh th\u1ee9c c\u1ee7a <\/span><a href=\"https:\/\/www.oracle.com\/java\/technologies\/downloads\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Oracle JDK<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u1ea3i xu\u1ed1ng phi\u00ean b\u1ea3n JDK ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 \u0111i\u1ec1u h\u00e0nh c\u1ee7a b\u1ea1n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ch\u1ea1y tr\u00ecnh c\u00e0i \u0111\u1eb7t v\u00e0 l\u00e0m theo h\u01b0\u1edbng d\u1eabn \u0111\u1ec3 ho\u00e0n t\u1ea5t c\u00e0i \u0111\u1eb7t.<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_74035\" aria-describedby=\"caption-attachment-74035\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-74035 size-full\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/06\/hoc-kotlin-1-vippro.jpg\" alt=\"\" width=\"1000\" height=\"592\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/06\/hoc-kotlin-1-vippro.jpg 1000w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/06\/hoc-kotlin-1-vippro-300x178.jpg 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/06\/hoc-kotlin-1-vippro-700x414.jpg 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/06\/hoc-kotlin-1-vippro-200x118.jpg 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/06\/hoc-kotlin-1-vippro-100x59.jpg 100w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-74035\" class=\"wp-caption-text\">C\u1ea5u h\u00ecnh bi\u1ebfn m\u00f4i tr\u01b0\u1eddng JAVA_HOME \u0111\u1ec3 tr\u1ecf \u0111\u1ebfn th\u01b0 m\u1ee5c c\u00e0i \u0111\u1eb7t JDK<\/figcaption><\/figure>\n<h3><b>C\u00fa ph\u00e1p c\u01a1 b\u1ea3n c\u1ee7a Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi c\u00fa ph\u00e1p ng\u1eafn g\u1ecdn v\u00e0 r\u00f5 r\u00e0ng. C\u00fa ph\u00e1p c\u1ee7a Kotlin r\u1ea5t g\u1ea7n g\u0169i v\u00e0 d\u1ec5 hi\u1ec3u, gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean vi\u1ebft m\u00e3 nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00e1c c\u1ea5u tr\u00fac c\u01a1 b\u1ea3n bao g\u1ed3m:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1c khai b\u00e1o bi\u1ebfn v\u1edbi t\u1eeb kh\u00f3a val (bi\u1ebfn kh\u00f4ng th\u1ec3 thay \u0111\u1ed5i) v\u00e0 var (bi\u1ebfn c\u00f3 th\u1ec3 thay \u0111\u1ed5i).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1c h\u00e0m \u0111\u01b0\u1ee3c khai b\u00e1o b\u1eb1ng t\u1eeb kh\u00f3a fun, v\u00e0 c\u00fa ph\u00e1p \u0111i\u1ec1u ki\u1ec7n if, when.\u00a0<\/span><\/li>\n<\/ul>\n<h3><b>Ki\u1ec3u d\u1eef li\u1ec7u v\u00e0 bi\u1ebfn trong Kotlin<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ki\u1ec3u d\u1eef li\u1ec7u: Kotlin h\u1ed7 tr\u1ee3 nhi\u1ec1u ki\u1ec3u d\u1eef li\u1ec7u kh\u00e1c nhau nh\u01b0 Int, Long, Float, Double, Boolean, Char, v\u00e0 String. Kotlin c\u0169ng h\u1ed7 tr\u1ee3 c\u00e1c ki\u1ec3u d\u1eef li\u1ec7u null an to\u00e0n, gi\u00fap gi\u1ea3m thi\u1ec3u l\u1ed7i NullPointerException.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Bi\u1ebfn trong Kotlin c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c khai b\u00e1o b\u1eb1ng t\u1eeb kh\u00f3a val (bi\u1ebfn kh\u00f4ng thay \u0111\u1ed5i) ho\u1eb7c var (bi\u1ebfn c\u00f3 th\u1ec3 thay \u0111\u1ed5i). V\u00ed d\u1ee5: val a: Int = 10 v\u00e0 var b: String = &#8220;Hello&#8221;.\u00a0<\/span><\/li>\n<\/ul>\n<h3><b>C\u00e1c to\u00e1n t\u1eed trong Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin cung c\u1ea5p m\u1ed9t lo\u1ea1t c\u00e1c to\u00e1n t\u1eed \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p to\u00e1n s\u1ed1 h\u1ecdc, logic v\u00e0 so s\u00e1nh:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1c to\u00e1n t\u1eed s\u1ed1 h\u1ecdc bao g\u1ed3m +, -, *, \/, %.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1c to\u00e1n t\u1eed logic nh\u01b0 &amp;&amp;, ||, ! \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thao t\u00e1c v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb boolean.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Kotlin c\u0169ng h\u1ed7 tr\u1ee3 c\u00e1c to\u00e1n t\u1eed so s\u00e1nh nh\u01b0 ==, !=, &gt;, &lt;, &gt;=, &lt;= \u0111\u1ec3 so s\u00e1nh c\u00e1c gi\u00e1 tr\u1ecb.<\/span><\/li>\n<\/ul>\n<h3><b>L\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng trong Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">L\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (<a href=\"https:\/\/itviec.com\/blog\/oop-la-gi\/\" target=\"_blank\" rel=\"noopener\"><strong>OOP<\/strong><\/a>) l\u00e0 m\u1ed9t trong nh\u1eefng n\u1ec1n t\u1ea3ng quan tr\u1ecdng c\u1ee7a Kotlin. Ng\u00f4n ng\u1eef n\u00e0y h\u1ed7 tr\u1ee3 c\u00e1c kh\u00e1i ni\u1ec7m OOP nh\u01b0 l\u1edbp (class), \u0111\u1ed1i t\u01b0\u1ee3ng (object), k\u1ebf th\u1eeba (inheritance), v\u00e0 \u0111a h\u00ecnh (polymorphism).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecbnh ngh\u0129a l\u1edbp b\u1eb1ng t\u1eeb kh\u00f3a class, t\u1ea1o \u0111\u1ed1i t\u01b0\u1ee3ng t\u1eeb l\u1edbp v\u00e0 s\u1eed d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng nh\u01b0 k\u1ebf th\u1eeba \u0111\u1ec3 t\u00e1i s\u1eed d\u1ee5ng m\u00e3. Kotlin c\u00f2n h\u1ed7 tr\u1ee3 c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao nh\u01b0 c\u00e1c l\u1edbp d\u1eef li\u1ec7u (data classes), c\u00e1c l\u1edbp n\u1ed9i b\u1ed9 (inner classes), v\u00e0 c\u00e1c l\u1edbp ni\u00eam phong (sealed classes) \u0111\u1ec3 gi\u00fap qu\u1ea3n l\u00fd m\u00e3 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 t\u00ecm hi\u1ec3u chi ti\u1ebft h\u01a1n v\u00e0 c\u00e1c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n, c\u00fa ph\u00e1p c\u1ee7a Kotlin b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp trang <\/span><a href=\"https:\/\/developer.android.com\/courses\/android-basics-kotlin\/course?gad_source=1&amp;gclid=Cj0KCQjwsaqzBhDdARIsAK2gqneSxi2reZYuL8S1JWhFjnLoQJPzmIwHmhWGJ18nZxEjJdJxGtsmCZIaAiD0EALw_wcB&amp;gclsrc=aw.ds&amp;hl=vi\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">T\u00e0i li\u1ec7u c\u01a1 b\u1ea3n v\u1ec1 Kotlin c\u1ee7a Google<\/span><\/a><span style=\"font-weight: 400;\"> \u0111\u01b0\u1ee3c bi\u00ean so\u1ea1n d\u00e0nh cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n Android.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac_kien_thuc_hoc_Kotlin_nang_cao\"><\/span><b>C\u00e1c ki\u1ebfn th\u1ee9c h\u1ecdc Kotlin n\u00e2ng cao<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Sau khi n\u1eafm v\u1eefng c\u00e1c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n, b\u1ea1n c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c kh\u00e1m ph\u00e1 c\u00e1c ki\u1ebfn th\u1ee9c n\u00e2ng cao c\u1ee7a Kotlin \u0111\u1ec3 t\u1eadn d\u1ee5ng t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a ng\u00f4n ng\u1eef n\u00e0y. Nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e2ng cao bao g\u1ed3m vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c h\u00e0m trong Kotlin, hi\u1ec3u r\u00f5 v\u1ec1 l\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng, h\u01b0\u1edbng d\u1eabn v\u1ec1 k\u1ebf th\u1eeba v\u00e0 \u0111a h\u00ecnh, l\u1eadp tr\u00ecnh h\u00e0m v\u00e0 l\u1eadp tr\u00ecnh b\u1ea5t \u0111\u1ed3ng b\u1ed9. M\u1ed7i ph\u1ea7n n\u00e0y s\u1ebd gi\u00fap b\u1ea1n x\u00e2y d\u1ef1ng c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ee9c t\u1ea1p v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/p>\n<h3><b>C\u00e1c h\u00e0m trong Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin cung c\u1ea5p nhi\u1ec1u t\u00ednh n\u0103ng m\u1ea1nh m\u1ebd li\u00ean quan \u0111\u1ebfn h\u00e0m. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecbnh ngh\u0129a h\u00e0m b\u1eb1ng t\u1eeb kh\u00f3a <\/span><b>fun<\/b><span style=\"font-weight: 400;\">, h\u00e0m c\u00f3 th\u1ec3 tr\u1ea3 v\u1ec1 gi\u00e1 tr\u1ecb ho\u1eb7c kh\u00f4ng (s\u1eed d\u1ee5ng <\/span><b>Unit<\/b><span style=\"font-weight: 400;\">).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kotlin h\u1ed7 tr\u1ee3 c\u00e1c h\u00e0m lambda (anonymous functions) v\u00e0 c\u00e1c h\u00e0m m\u1edf r\u1ed9ng (extension functions), cho ph\u00e9p b\u1ea1n m\u1edf r\u1ed9ng ch\u1ee9c n\u0103ng c\u1ee7a c\u00e1c l\u1edbp m\u00e0 kh\u00f4ng c\u1ea7n k\u1ebf th\u1eeba ch\u00fang. C\u00e1c h\u00e0m c\u00f3 th\u1ec3 l\u00e0 th\u00e0nh ph\u1ea7n c\u1ee7a l\u1edbp (member function) ho\u1eb7c \u0111\u1ed9c l\u1eadp (top-level function).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110o\u1ea1n code d\u01b0\u1edbi \u0111\u00e2y tri\u1ec3n khai m\u1ed9t h\u00e0m t\u00ednh t\u1ed5ng v\u00e0 t\u00ednh nh\u00e2n hai s\u1ed1 x v\u00e0 y \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng Kotlin theo hai c\u00e1ch vi\u1ebft tr\u00ean:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">fun sum(a: Int, b: Int): Int {<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0return a + b<\/span>\r\n\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n\r\n<span style=\"font-weight: 400;\">val multiply = { x: Int, y: Int -&gt; x * y }<\/span><\/pre>\n<h3><b>L\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng trong Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin h\u1ed7 tr\u1ee3 \u0111\u1ea7y \u0111\u1ee7 c\u00e1c t\u00ednh n\u0103ng c\u1ee7a l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c l\u1edbp v\u1edbi t\u1eeb kh\u00f3a <\/span><span style=\"font-weight: 400;\">class<\/span><span style=\"font-weight: 400;\">, v\u00e0 t\u1ea1o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng t\u1eeb c\u00e1c l\u1edbp \u0111\u00f3. Kotlin h\u1ed7 tr\u1ee3 c\u00e1c l\u1edbp d\u1eef li\u1ec7u (data class), c\u00e1c l\u1edbp ni\u00eam phong (sealed class), v\u00e0 c\u00e1c l\u1edbp n\u1ed9i b\u1ed9 (inner class). B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1eeb kh\u00f3a <\/span><span style=\"font-weight: 400;\">object<\/span><span style=\"font-weight: 400;\"> \u0111\u1ec3 t\u1ea1o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01a1n l\u1ebb (singleton).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110o\u1ea1n code d\u01b0\u1edbi \u0111\u00e2y khai b\u00e1o 2 \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 \u2018Person&#8217; v\u00e0 \u2018Employee&#8217; v\u00e0 in ra m\u00e0n h\u00ecnh th\u00f4ng tin c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3 th\u00f4ng qua h\u00e0m displayInfo():<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">data class Person(val name: String, val age: Int)<\/span>\r\n\r\n<span style=\"font-weight: 400;\">class Employee(val name: String, val position: String) {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0fun displayInfo() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0println(\"Employee Name: $name, Position: $position\")<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<pre><span style=\"font-weight: 400;\">val john = Employee(\"John Doe\", \"Developer\")<\/span>\r\n<span style=\"font-weight: 400;\">john.displayInfo()<\/span><\/pre>\n<h3><b>H\u01b0\u1edbng d\u1eabn k\u1ebf th\u1eeba v\u00e0 \u0111a h\u00ecnh trong Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin cho ph\u00e9p k\u1ebf th\u1eeba c\u00e1c l\u1edbp \u0111\u1ec3 t\u00e1i s\u1eed d\u1ee5ng m\u00e3 v\u00e0 th\u1ef1c hi\u1ec7n \u0111a h\u00ecnh. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1eeb kh\u00f3a <\/span><span style=\"font-weight: 400;\">open<\/span><span style=\"font-weight: 400;\"> \u0111\u1ec3 cho ph\u00e9p m\u1ed9t l\u1edbp \u0111\u01b0\u1ee3c k\u1ebf th\u1eeba, v\u00e0 t\u1eeb kh\u00f3a <\/span><span style=\"font-weight: 400;\">override<\/span><span style=\"font-weight: 400;\"> \u0111\u1ec3 ghi \u0111\u00e8 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a l\u1edbp cha.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110o\u1ea1n code d\u01b0\u1edbi \u0111\u00e2y tr\u00ecnh b\u00e0y t\u00ednh k\u1ebf th\u1eeba trong l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng \u2018Dog\u2019 k\u1ebf th\u1eeba \u0111\u1ed1i t\u01b0\u1ee3ng \u2018Animal\u2019:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">open class Animal {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0open fun makeSound() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0println(\"Some generic animal sound\")<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n\r\n<span style=\"font-weight: 400;\">class Dog : Animal() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0override fun makeSound() {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0println(\"Bark\")<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n\r\n<span style=\"font-weight: 400;\">val dog = Dog()<\/span>\r\n<span style=\"font-weight: 400;\">dog.makeSound()<\/span>\r\n<span style=\"font-weight: 400;\">\/\/ Output: Bark<\/span><\/pre>\n<h3><b>L\u1eadp tr\u00ecnh h\u00e0m (Functional Programming) trong Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin t\u00edch h\u1ee3p nhi\u1ec1u t\u00ednh n\u0103ng c\u1ee7a l\u1eadp tr\u00ecnh h\u00e0m, cho ph\u00e9p b\u1ea1n vi\u1ebft m\u00e3 ng\u1eafn g\u1ecdn v\u00e0 d\u1ec5 \u0111\u1ecdc h\u01a1n. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c h\u00e0m lambda, c\u00e1c h\u00e0m c\u1ea5p cao h\u01a1n (higher-order functions), v\u00e0 c\u00e1c h\u00e0m m\u1edf r\u1ed9ng \u0111\u1ec3 thao t\u00e1c v\u1edbi c\u00e1c c\u1ea5u tr\u00fac d\u1eef li\u1ec7u v\u00e0 vi\u1ebft c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh h\u00e0m.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110o\u1ea1n code d\u01b0\u1edbi \u0111\u00e2y tr\u00ecnh b\u00e0y 1 high-order function c\u00f3 nhi\u1ec7m v\u1ee5 nh\u00e2n c\u00e1c ph\u1ea7n t\u1eed trong m\u1ea3ng \u2018numbers&#8217; v\u1edbi 2:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">val numbers = listOf(1, 2, 3, 4, 5)<\/span>\r\n\r\n<span style=\"font-weight: 400;\">val doubled = numbers.map { it * 2 }<\/span>\r\n\r\n<span style=\"font-weight: 400;\">println(doubled) \/\/ Output: [2, 4, 6, 8, 10]<\/span><\/pre>\n<h3><b>L\u1eadp tr\u00ecnh b\u1ea5t \u0111\u1ed3ng b\u1ed9 (Asynchronous Programming) trong Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin h\u1ed7 tr\u1ee3 l\u1eadp tr\u00ecnh b\u1ea5t \u0111\u1ed3ng b\u1ed9 th\u00f4ng qua c\u00e1c coroutine, gi\u00fap qu\u1ea3n l\u00fd c\u00e1c t\u00e1c v\u1ee5 kh\u00f4ng \u0111\u1ed3ng b\u1ed9 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 d\u1ec5 d\u00e0ng. S\u1eed d\u1ee5ng c\u00e1c coroutine builder nh\u01b0 <\/span><span style=\"font-weight: 400;\">launch<\/span><span style=\"font-weight: 400;\"> v\u00e0 <\/span><span style=\"font-weight: 400;\">async<\/span><span style=\"font-weight: 400;\">, b\u1ea1n c\u00f3 th\u1ec3 vi\u1ebft m\u00e3 b\u1ea5t \u0111\u1ed3ng b\u1ed9 r\u00f5 r\u00e0ng v\u00e0 tr\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c callback hell.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110o\u1ea1n code d\u01b0\u1edbi \u0111\u00e2y tri\u1ec3n khai t\u00e1c v\u1ee5 b\u1ea5t \u0111\u1ed3ng b\u1ed9, k\u1ebft qu\u1ea3 s\u1ebd in ra \u201cHello\u201d v\u00e0 1 gi\u00e2y sau s\u1ebd in ra \u201cWorld!\u201d, \u0110o\u1ea1n m\u00e3 n\u00e0y minh h\u1ecda c\u00e1ch Kotlin s\u1eed d\u1ee5ng coroutines \u0111\u1ec3 x\u1eed l\u00fd t\u00e1c v\u1ee5 b\u1ea5t \u0111\u1ed3ng b\u1ed9 m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3. S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa <\/span><span style=\"font-weight: 400;\">runBlocking<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">launch<\/span><span style=\"font-weight: 400;\">, v\u00e0 <\/span><span style=\"font-weight: 400;\">delay<\/span><span style=\"font-weight: 400;\"> cho ph\u00e9p l\u1eadp tr\u00ecnh vi\u00ean ki\u1ec3m so\u00e1t lu\u1ed3ng th\u1ef1c thi v\u00e0 qu\u1ea3n l\u00fd c\u00e1c t\u00e1c v\u1ee5 b\u1ea5t \u0111\u1ed3ng b\u1ed9 m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c callback ph\u1ee9c t\u1ea1p.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">import kotlinx.coroutines.*<\/span>\r\n\r\n<span style=\"font-weight: 400;\">fun main() = runBlocking {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0launch {<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0delay(1000L)<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0println(\"World!\")<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0}<\/span>\r\n<span style=\"font-weight: 400;\"> \u00a0\u00a0\u00a0println(\"Hello,\")<\/span>\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<blockquote><p><span style=\"font-weight: 400;\">\u0110\u1ec3 hi\u1ec3u th\u00eam chi ti\u1ebft c\u00e1c ki\u1ebfn th\u1ee9c n\u00e2ng cao c\u1ee7a Kotlin, b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp <\/span><a href=\"https:\/\/developer.android.com\/courses\/kotlin-android-advanced\/overview\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">T\u00e0i li\u1ec7u Kotlin n\u00e2ng cao ch\u00ednh th\u1ee9c c\u1ee7a Google<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Ung_dung_Kotlin_trong_phat_trien_phan_mem\"><\/span><b>\u1ee8ng d\u1ee5ng Kotlin trong ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Nh\u1edd v\u00e0o s\u1ef1 linh ho\u1ea1t v\u00e0 m\u1ea1nh m\u1ebd c\u1ee7a m\u00ecnh, Kotlin kh\u00f4ng ch\u1ec9 l\u00e0 ng\u00f4n ng\u1eef l\u00fd t\u01b0\u1edfng cho ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android, m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i trong ph\u00e1t tri\u1ec3n web, \u1ee9ng d\u1ee5ng \u0111a n\u1ec1n t\u1ea3ng v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Kotlin trong ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m:<\/span><\/p>\n<h3><b>Ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android v\u1edbi Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin \u0111\u01b0\u1ee3c Google h\u1ed7 tr\u1ee3 nh\u01b0 l\u00e0 ng\u00f4n ng\u1eef ch\u00ednh \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android v\u00e0 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u c\u1ee7a nhi\u1ec1u nh\u00e0 ph\u00e1t tri\u1ec3n Android. C\u00e1c l\u1ee3i \u00edch khi s\u1eed d\u1ee5ng Kotlin trong ph\u00e1t tri\u1ec3n Android bao g\u1ed3m:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u0103ng hi\u1ec7u su\u1ea5t ph\u00e1t tri\u1ec3n<\/b><span style=\"font-weight: 400;\">: V\u1edbi c\u00fa ph\u00e1p ng\u1eafn g\u1ecdn v\u00e0 c\u00e1c t\u00ednh n\u0103ng hi\u1ec7n \u0111\u1ea1i, Kotlin gi\u00fap gi\u1ea3m thi\u1ec3u l\u1ed7i v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>An to\u00e0n h\u01a1n<\/b><span style=\"font-weight: 400;\">: Kotlin gi\u1ea3m thi\u1ec3u c\u00e1c l\u1ed7i li\u00ean quan \u0111\u1ebfn null (NullPointerException) th\u00f4ng qua h\u1ec7 th\u1ed1ng ki\u1ec3u d\u1eef li\u1ec7u an to\u00e0n v\u1edbi null.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi Java<\/b><span style=\"font-weight: 400;\">: Kotlin c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c c\u00f9ng v\u1edbi Java, cho ph\u00e9p nh\u00e0 ph\u00e1t tri\u1ec3n s\u1eed d\u1ee5ng c\u00e1c th\u01b0 vi\u1ec7n Java hi\u1ec7n c\u00f3 m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng.<\/span><\/li>\n<\/ul>\n<h3><b>Ph\u00e1t tri\u1ec3n web backend v\u1edbi Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin c\u0169ng r\u1ea5t m\u1ea1nh m\u1ebd trong ph\u00e1t tri\u1ec3n web backend. C\u00e1c framework nh\u01b0 Ktor v\u00e0 Spring Boot h\u1ed7 tr\u1ee3 Kotlin, gi\u00fap x\u00e2y d\u1ef1ng c\u00e1c \u1ee9ng d\u1ee5ng web hi\u1ec7u qu\u1ea3 v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec:<\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/ktor.io\/docs\/welcome.html\" target=\"_blank\" rel=\"noopener\"><b>Ktor<\/b><span style=\"font-weight: 400;\">:<\/span><\/a><span style=\"font-weight: 400;\"> L\u00e0 m\u1ed9t framework nh\u1eb9 v\u00e0 linh ho\u1ea1t, Ktor \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c \u1ee9ng d\u1ee5ng web v\u00e0 d\u1ecbch v\u1ee5 RESTful. V\u1edbi c\u00fa ph\u00e1p DSL c\u1ee7a Kotlin, Ktor cho ph\u00e9p c\u1ea5u h\u00ecnh v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c endpoint m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng v\u00e0 tr\u1ef1c quan.<\/span><\/li>\n<li><a href=\"https:\/\/kotlinlang.org\/docs\/jvm-get-started-spring-boot.html\" target=\"_blank\" rel=\"noopener\"><b>Spring Boot<\/b><span style=\"font-weight: 400;\">:<\/span><\/a><span style=\"font-weight: 400;\"> M\u1ed9t trong nh\u1eefng framework ph\u1ed5 bi\u1ebfn nh\u1ea5t cho ph\u00e1t tri\u1ec3n backend, Spring Boot ho\u00e0n to\u00e0n h\u1ed7 tr\u1ee3 Kotlin. C\u00e1c l\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng Kotlin v\u1edbi Spring Boot bao g\u1ed3m kh\u1ea3 n\u0103ng vi\u1ebft m\u00e3 ng\u1eafn g\u1ecdn h\u01a1n v\u00e0 t\u1eadn d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng c\u1ee7a Kotlin \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o tr\u00ec.<\/span><\/li>\n<\/ul>\n<h3><b>Ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng \u0111a n\u1ec1n t\u1ea3ng v\u1edbi Kotlin<\/b><\/h3>\n<p><a href=\"https:\/\/kotlinlang.org\/docs\/multiplatform.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Kotlin Multi Platform<\/span><\/a><span style=\"font-weight: 400;\"> l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 m\u1ea1nh m\u1ebd cho ph\u00e9p ph\u00e1t tri\u1ec3n c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 ch\u1ea1y tr\u00ean nhi\u1ec1u n\u1ec1n t\u1ea3ng nh\u01b0 Android, iOS, web v\u00e0 desktop b\u1eb1ng c\u00e1ch chia s\u1ebb codebase. V\u1edbi Kotlin Multiplatform, b\u1ea1n c\u00f3 th\u1ec3:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Chia s\u1ebb logic kinh doanh<\/b><span style=\"font-weight: 400;\">: Vi\u1ebft code m\u1ed9t l\u1ea7n v\u00e0 s\u1eed d\u1ee5ng l\u1ea1i tr\u00ean nhi\u1ec1u n\u1ec1n t\u1ea3ng, gi\u00fap gi\u1ea3m thi\u1ec3u c\u00f4ng s\u1ee9c ph\u00e1t tri\u1ec3n v\u00e0 b\u1ea3o tr\u00ec.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u1eadn d\u1ee5ng c\u00e1c API ri\u00eang c\u1ee7a t\u1eebng n\u1ec1n t\u1ea3ng<\/b><span style=\"font-weight: 400;\">: Kotlin Multiplatform cho ph\u00e9p vi\u1ebft c\u00e1c ph\u1ea7n m\u00e3 ri\u00eang cho t\u1eebng n\u1ec1n t\u1ea3ng khi c\u1ea7n thi\u1ebft, nh\u01b0ng v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c ph\u1ea7n logic chung.<\/span><\/li>\n<\/ul>\n<h3><b>Vi\u1ebft c\u00e1c t\u1eadp l\u1ec7nh t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u1edbi Kotlin<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 vi\u1ebft c\u00e1c t\u1eadp l\u1ec7nh t\u1ef1 \u0111\u1ed9ng h\u00f3a, gi\u00fap qu\u1ea3n l\u00fd c\u00e1c t\u00e1c v\u1ee5 h\u00e0ng ng\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. V\u1edbi c\u00fa ph\u00e1p r\u00f5 r\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c t\u1ed1t v\u1edbi c\u00e1c th\u01b0 vi\u1ec7n Java, Kotlin l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi cho vi\u1ec7c vi\u1ebft c\u00e1c t\u1eadp l\u1ec7nh nh\u01b0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u1ef1 \u0111\u1ed9ng h\u00f3a t\u00e1c v\u1ee5 h\u1ec7 th\u1ed1ng<\/b><span style=\"font-weight: 400;\">: Vi\u1ebft c\u00e1c t\u1eadp l\u1ec7nh \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 nh\u01b0 qu\u1ea3n l\u00fd t\u1ec7p, sao l\u01b0u d\u1eef li\u1ec7u, v\u00e0 c\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u00edch h\u1ee3p v\u00e0 tri\u1ec3n khai li\u00ean t\u1ee5c (CI\/CD)<\/b><span style=\"font-weight: 400;\">: S\u1eed d\u1ee5ng Kotlin \u0111\u1ec3 vi\u1ebft c\u00e1c t\u1eadp l\u1ec7nh gi\u00fap qu\u1ea3n l\u00fd quy tr\u00ecnh CI\/CD, t\u1ef1 \u0111\u1ed9ng h\u00f3a vi\u1ec7c build, test v\u00e0 tri\u1ec3n khai \u1ee9ng d\u1ee5ng.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Tai_lieu_hoc_Kotlin_tham_khao\"><\/span><b>T\u00e0i li\u1ec7u h\u1ecdc Kotlin tham kh\u1ea3o<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 h\u1ecdc Kotlin hi\u1ec7u qu\u1ea3, b\u1ea1n c\u1ea7n ti\u1ebfp c\u1eadn v\u1edbi nhi\u1ec1u t\u00e0i nguy\u00ean h\u1ecdc t\u1eadp phong ph\u00fa v\u00e0 \u0111a d\u1ea1ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 g\u1ee3i \u00fd v\u1ec1 c\u00e1c t\u00e0i li\u1ec7u, kh\u00f3a h\u1ecdc, c\u1ed9ng \u0111\u1ed3ng v\u00e0 c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 h\u1eefu \u00edch cho vi\u1ec7c h\u1ecdc Kotlin:<\/span><\/p>\n<h3><b>S\u00e1ch v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.amazon.com\/Kotlin-Action-Dmitry-Jemerov\/dp\/1617293296\" target=\"_blank\" rel=\"noopener\"><b>&#8220;Kotlin in Action&#8221;<\/b><\/a><span style=\"font-weight: 400;\"> c\u1ee7a Dmitry Jemerov v\u00e0 Svetlana Isakova: \u0110\u00e2y l\u00e0 m\u1ed9t cu\u1ed1n s\u00e1ch tuy\u1ec7t v\u1eddi cho nh\u1eefng ai mu\u1ed1n b\u1eaft \u0111\u1ea7u v\u1edbi Kotlin. Cu\u1ed1n s\u00e1ch n\u00e0y cung c\u1ea5p m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 ng\u00f4n ng\u1eef v\u00e0 c\u00e1c t\u00ednh n\u0103ng quan tr\u1ecdng, k\u00e8m theo nhi\u1ec1u v\u00ed d\u1ee5 th\u1ef1c t\u1ebf.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.amazon.com\/Kotlin-Programming-Nerd-Ranch-Guide\/dp\/0135161630\" target=\"_blank\" rel=\"noopener\"><b>&#8220;Kotlin Programming: The Big Nerd Ranch Guide&#8221;<\/b><\/a><span style=\"font-weight: 400;\"> c\u1ee7a Josh Skeen v\u00e0 David Greenhalgh: Cu\u1ed1n s\u00e1ch n\u00e0y l\u00e0 m\u1ed9t h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n cho l\u1eadp tr\u00ecnh Kotlin, bao g\u1ed3m c\u1ea3 ph\u1ea7n c\u01a1 b\u1ea3n v\u00e0 n\u00e2ng cao.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/kotlinlang.org\/docs\/kotlin-pdf.html\" target=\"_blank\" rel=\"noopener\"><b>T\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c c\u1ee7a Kotlin<\/b><\/a><span style=\"font-weight: 400;\">: Trang web ch\u00ednh th\u1ee9c c\u1ee7a Kotlin cung c\u1ea5p r\u1ea5t nhi\u1ec1u t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn chi ti\u1ebft, t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao, gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng tra c\u1ee9u v\u00e0 h\u1ecdc t\u1eadp.<\/span><\/li>\n<\/ul>\n<h3><b>Kh\u00f3a h\u1ecdc tr\u1ef1c tuy\u1ebfn v\u00e0 b\u00e0i gi\u1ea3ng mi\u1ec5n ph\u00ed<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.coursera.org\/learn\/kotlin-for-java-developers\" target=\"_blank\" rel=\"noopener\"><b>&#8220;Kotlin for Java Developers&#8221; by JetBrains<\/b><\/a><span style=\"font-weight: 400;\"> (Coursera): \u0110\u00e2y l\u00e0 m\u1ed9t kh\u00f3a h\u1ecdc tuy\u1ec7t v\u1eddi \u0111\u1ec3 b\u1eaft \u0111\u1ea7u h\u1ecdc Kotlin, \u0111\u1eb7c bi\u1ec7t l\u00e0 d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 kinh nghi\u1ec7m v\u1edbi Java.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.udemy.com\/course\/the-complete-kotlin-developer-course-java\/?couponCode=OF52424\" target=\"_blank\" rel=\"noopener\"><b>&#8220;The Complete Kotlin Developer Course&#8221; by Stephen Grider<\/b><\/a><span style=\"font-weight: 400;\"> (Udemy): Kh\u00f3a h\u1ecdc cung c\u1ea5p c\u00e1c b\u00e0i gi\u1ea3ng chi ti\u1ebft v\u00e0 th\u1ef1c h\u00e0nh Kotlin cho c\u1ea3 ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u00e0 c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean \u0111\u00e3 c\u00f3 kinh nghi\u1ec7m.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>YouTube<\/b><span style=\"font-weight: 400;\">: Nhi\u1ec1u k\u00eanh YouTube nh\u01b0 \u201c<\/span><a href=\"https:\/\/www.youtube.com\/watch?v=H_oGi8uuDpA\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Derek Banas<\/span><\/a><span style=\"font-weight: 400;\">\u201d v\u00e0<\/span><a href=\"https:\/\/www.youtube.com\/@AndroidDevelopers\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\"> &#8220;Android Developers&#8221;<\/span><\/a><span style=\"font-weight: 400;\"> cung c\u1ea5p c\u00e1c video h\u01b0\u1edbng d\u1eabn mi\u1ec5n ph\u00ed v\u1ec1 Kotlin.<\/span><\/li>\n<\/ul>\n<h3><b>C\u1ed9ng \u0111\u1ed3ng l\u1eadp tr\u00ecnh Kotlin<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/slack-chats.kotlinlang.org\/?_gl=1*4iwtxr*_ga*MjM4NTI3NjQ0LjE3MTYzNzM2Njk.*_ga_9J976DJZ68*MTcxNzgzNjY5OC41LjEuMTcxNzgzNzM3NS4wLjAuMA..&amp;_ga=2.125625098.1024047005.1717836700-238527644.1716373669\" target=\"_blank\" rel=\"noopener\"><b>Kotlin Slack Community<\/b><\/a><span style=\"font-weight: 400;\">: \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u1ed9ng \u0111\u1ed3ng tr\u1ef1c tuy\u1ebfn l\u1edbn nh\u1ea5t c\u1ee7a Kotlin, n\u01a1i b\u1ea1n c\u00f3 th\u1ec3 th\u1ea3o lu\u1eadn, h\u1ecfi \u0111\u00e1p v\u00e0 chia s\u1ebb kinh nghi\u1ec7m v\u1edbi c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean kh\u00e1c.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.reddit.com\/r\/Kotlin\/comments\/mvltdv\/kotlin_community\/\" target=\"_blank\" rel=\"noopener\"><b>Subreddit r\/Kotlin<\/b><\/a><span style=\"font-weight: 400;\"> tr\u00ean Reddit l\u00e0 n\u01a1i t\u1eadp trung nhi\u1ec1u l\u1eadp tr\u00ecnh vi\u00ean Kotlin, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1eb7t c\u00e2u h\u1ecfi, th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn Kotlin v\u00e0 c\u1eadp nh\u1eadt c\u00e1c tin t\u1ee9c m\u1edbi nh\u1ea5t v\u1ec1 ng\u00f4n ng\u1eef n\u00e0y.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/stackoverflow.com\/questions\/tagged\/kotlin\" target=\"_blank\" rel=\"noopener\"><b>Stack Overflow<\/b><\/a><span style=\"font-weight: 400;\"> l\u00e0 n\u01a1i b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm ki\u1ebfm c\u00e1c c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi li\u00ean quan \u0111\u1ebfn Kotlin, c\u0169ng nh\u01b0 \u0111\u1eb7t c\u00e2u h\u1ecfi c\u1ee7a ri\u00eang b\u1ea1n.<\/span><\/li>\n<\/ul>\n<h3><b>C\u00e1c c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 h\u1ecdc t\u1eadp Kotlin<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.jetbrains.com\/idea\/\" target=\"_blank\" rel=\"noopener\"><b>IntelliJ IDEA<\/b><\/a><span style=\"font-weight: 400;\">: \u0110\u00e2y l\u00e0 IDE m\u1ea1nh m\u1ebd nh\u1ea5t cho ph\u00e1t tri\u1ec3n Kotlin, v\u1edbi nhi\u1ec1u t\u00ednh n\u0103ng h\u1ed7 tr\u1ee3 vi\u1ebft m\u00e3, ki\u1ec3m tra l\u1ed7i v\u00e0 g\u1ee1 l\u1ed7i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/developer.android.com\/training\/kotlinplayground?hl=vi\" target=\"_blank\" rel=\"noopener\"><b>Kotlin Playground<\/b><\/a><span style=\"font-weight: 400;\">: L\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn cho ph\u00e9p b\u1ea1n vi\u1ebft v\u00e0 ch\u1ea1y m\u00e3 Kotlin ngay tr\u00ean tr\u00ecnh duy\u1ec7t m\u00e0 kh\u00f4ng c\u1ea7n c\u00e0i \u0111\u1eb7t b\u1ea5t k\u1ef3 ph\u1ea7n m\u1ec1m n\u00e0o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.codecademy.com\/learn\/learn-kotlin\" target=\"_blank\" rel=\"noopener\"><b>Codecademy<\/b><\/a><span style=\"font-weight: 400;\">: Ngo\u00e0i c\u00e1c kh\u00f3a h\u1ecdc, Codecademy cung c\u1ea5p m\u1ed9t m\u00f4i tr\u01b0\u1eddng th\u1ef1c h\u00e0nh tr\u1ef1c tuy\u1ebfn, n\u01a1i b\u1ea1n c\u00f3 th\u1ec3 vi\u1ebft m\u00e3 v\u00e0 xem k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Nh\u1eefng t\u00e0i nguy\u00ean n\u00e0y s\u1ebd gi\u00fap b\u1ea1n n\u1eafm v\u1eefng Kotlin t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao, \u0111\u1ed3ng th\u1eddi cung c\u1ea5p m\u00f4i tr\u01b0\u1eddng h\u1ecdc t\u1eadp v\u00e0 th\u1ef1c h\u00e0nh hi\u1ec7u qu\u1ea3. H\u00e3y t\u1eadn d\u1ee5ng c\u00e1c t\u00e0i nguy\u00ean n\u00e0y \u0111\u1ec3 ph\u00e1t tri\u1ec3n k\u1ef9 n\u0103ng l\u1eadp tr\u00ecnh Kotlin c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Loi_khuyen_va_kinh_nghiem_hoc_tap_Kotlin_hieu_qua\"><\/span><b>L\u1eddi khuy\u00ean v\u00e0 kinh nghi\u1ec7m h\u1ecdc t\u1eadp Kotlin hi\u1ec7u qu\u1ea3<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 h\u1ecdc Kotlin hi\u1ec7u qu\u1ea3 v\u00e0 nhanh ch\u00f3ng, b\u1ea1n c\u1ea7n c\u00f3 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp c\u1ee5 th\u1ec3 v\u00e0 \u00e1p d\u1ee5ng c\u00e1c kinh nghi\u1ec7m h\u1ecdc t\u1eadp ph\u00f9 h\u1ee3p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 l\u1eddi khuy\u00ean v\u00e0 kinh nghi\u1ec7m gi\u00fap b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t trong qu\u00e1 tr\u00ecnh h\u1ecdc Kotlin:<\/span><\/p>\n<h3><b>L\u1eadp k\u1ebf ho\u1ea1ch h\u1ecdc t\u1eadp c\u1ee5 th\u1ec3 v\u00e0 khoa h\u1ecdc<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>X\u00e1c \u0111\u1ecbnh m\u1ee5c ti\u00eau r\u00f5 r\u00e0ng<\/b><span style=\"font-weight: 400;\">: Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u h\u1ecdc, h\u00e3y x\u00e1c \u0111\u1ecbnh r\u00f5 m\u1ee5c ti\u00eau c\u1ee7a b\u1ea1n. B\u1ea1n mu\u1ed1n h\u1ecdc Kotlin \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android, x\u00e2y d\u1ef1ng backend, hay ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 h\u1ecdc th\u00eam m\u1ed9t ng\u00f4n ng\u1eef m\u1edbi?<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>L\u00ean l\u1ecbch h\u1ecdc t\u1eadp<\/b><span style=\"font-weight: 400;\">: Ph\u00e2n chia th\u1eddi gian h\u1ecdc t\u1eadp h\u00e0ng ng\u00e0y ho\u1eb7c h\u00e0ng tu\u1ea7n m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd. \u0110\u1ea3m b\u1ea3o b\u1ea1n c\u00f3 \u0111\u1ee7 th\u1eddi gian \u0111\u1ec3 ti\u1ebfp thu ki\u1ebfn th\u1ee9c m\u1edbi v\u00e0 \u00f4n t\u1eadp l\u1ea1i nh\u1eefng g\u00ec \u0111\u00e3 h\u1ecdc.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Chia nh\u1ecf m\u1ee5c ti\u00eau<\/b><span style=\"font-weight: 400;\">: Thay v\u00ec c\u1ed1 g\u1eafng h\u1ecdc m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ki\u1ebfn th\u1ee9c c\u00f9ng m\u1ed9t l\u00fac, h\u00e3y chia nh\u1ecf m\u1ee5c ti\u00eau h\u1ecdc t\u1eadp th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf h\u01a1n, d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n. V\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o h\u1ecdc c\u00fa ph\u00e1p c\u01a1 b\u1ea3n trong tu\u1ea7n \u0111\u1ea7u, sau \u0111\u00f3 chuy\u1ec3n sang c\u00e1c ch\u1ee7 \u0111\u1ec1 n\u00e2ng cao nh\u01b0 l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng.<\/span><\/li>\n<\/ul>\n<h3><b>Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean v\u00e0 li\u00ean t\u1ee5c<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vi\u1ebft m\u00e3 h\u00e0ng ng\u00e0y<\/b><span style=\"font-weight: 400;\">: Th\u1ef1c h\u00e0nh l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 h\u1ecdc ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh. H\u00e3y c\u1ed1 g\u1eafng vi\u1ebft m\u00e3 h\u00e0ng ng\u00e0y, ngay c\u1ea3 khi ch\u1ec9 l\u00e0 nh\u1eefng b\u00e0i t\u1eadp nh\u1ecf ho\u1eb7c c\u00e1c v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Th\u1ef1c hi\u1ec7n c\u00e1c d\u1ef1 \u00e1n nh\u1ecf<\/b><span style=\"font-weight: 400;\">: B\u1eaft \u0111\u1ea7u v\u1edbi c\u00e1c d\u1ef1 \u00e1n nh\u1ecf \u0111\u1ec3 \u00e1p d\u1ee5ng nh\u1eefng g\u00ec b\u1ea1n \u0111\u00e3 h\u1ecdc v\u00e0o th\u1ef1c t\u1ebf. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng Kotlin trong c\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp v\u00e0 th\u1eed th\u00e1ch l\u1eadp tr\u00ecnh<\/b><span style=\"font-weight: 400;\">: S\u1eed d\u1ee5ng c\u00e1c trang web nh\u01b0 <\/span><a href=\"https:\/\/www.hackerrank.com\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">HackerRank<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/leetcode.com\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">LeetCode<\/span><\/a><span style=\"font-weight: 400;\"> ho\u1eb7c <\/span><a href=\"https:\/\/exercism.org\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Exercism<\/span><\/a><span style=\"font-weight: 400;\"> \u0111\u1ec3 t\u00ecm c\u00e1c b\u00e0i t\u1eadp v\u00e0 th\u1eed th\u00e1ch li\u00ean quan \u0111\u1ebfn Kotlin. \u0110\u00e2y l\u00e0 c\u00e1ch t\u1ed1t \u0111\u1ec3 r\u00e8n luy\u1ec7n k\u1ef9 n\u0103ng v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1.<\/span><\/li>\n<\/ul>\n<h3><b>Tham gia c\u1ed9ng \u0111\u1ed3ng l\u1eadp tr\u00ecnh \u0111\u1ec3 h\u1ecdc h\u1ecfi v\u00e0 chia s\u1ebb kinh nghi\u1ec7m<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Tham gia c\u00e1c di\u1ec5n \u0111\u00e0n v\u00e0 nh\u00f3m tr\u1ef1c tuy\u1ebfn<\/b><span style=\"font-weight: 400;\">: Tham gia c\u00e1c c\u1ed9ng \u0111\u1ed3ng tr\u1ef1c tuy\u1ebfn nh\u01b0 Kotlin Slack, subreddit r\/Kotlin, ho\u1eb7c Stack Overflow \u0111\u1ec3 \u0111\u1eb7t c\u00e2u h\u1ecfi, th\u1ea3o lu\u1eadn v\u00e0 nh\u1eadn s\u1ef1 gi\u00fap \u0111\u1ee1 t\u1eeb c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean kh\u00e1c.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Tham d\u1ef1 c\u00e1c s\u1ef1 ki\u1ec7n v\u00e0 h\u1ed9i th\u1ea3o<\/b><span style=\"font-weight: 400;\">: Tham gia c\u00e1c s\u1ef1 ki\u1ec7n, h\u1ed9i th\u1ea3o ho\u1eb7c meetup v\u1ec1 Kotlin \u0111\u1ec3 g\u1eb7p g\u1ee1 v\u00e0 h\u1ecdc h\u1ecfi t\u1eeb nh\u1eefng ng\u01b0\u1eddi c\u00f3 kinh nghi\u1ec7m.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Chia s\u1ebb ki\u1ebfn th\u1ee9c<\/b><span style=\"font-weight: 400;\">: Vi\u1ebft blog, t\u1ea1o video h\u01b0\u1edbng d\u1eabn ho\u1eb7c tham gia gi\u1ea3ng d\u1ea1y v\u1ec1 Kotlin. Chia s\u1ebb ki\u1ebfn th\u1ee9c kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n c\u1ee7ng c\u1ed1 nh\u1eefng g\u00ec \u0111\u00e3 h\u1ecdc m\u00e0 c\u00f2n t\u1ea1o ra s\u1ef1 k\u1ebft n\u1ed1i v\u1edbi c\u1ed9ng \u0111\u1ed3ng.<\/span><\/li>\n<\/ul>\n<h3><b>Lu\u00f4n c\u1eadp nh\u1eadt ki\u1ebfn th\u1ee9c v\u00e0 xu h\u01b0\u1edbng m\u1edbi nh\u1ea5t c\u1ee7a Kotlin<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Theo d\u00f5i c\u00e1c blog v\u00e0 trang web chuy\u00ean v\u1ec1 Kotlin<\/b><span style=\"font-weight: 400;\">: \u0110\u1ecdc c\u00e1c blog v\u00e0 trang web chuy\u00ean v\u1ec1 Kotlin nh\u01b0 <\/span><a href=\"https:\/\/kotlinweekly.net\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Kotlin Weekly<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/blog.jetbrains.com\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">JetBrains Blog<\/span><\/a><span style=\"font-weight: 400;\"> \u0111\u1ec3 c\u1eadp nh\u1eadt c\u00e1c tin t\u1ee9c v\u00e0 b\u00e0i vi\u1ebft m\u1edbi nh\u1ea5t v\u1ec1 ng\u00f4n ng\u1eef n\u00e0y.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Theo d\u00f5i c\u00e1c k\u00eanh YouTube v\u00e0 podcast<\/b><span style=\"font-weight: 400;\">: C\u00f3 nhi\u1ec1u k\u00eanh YouTube v\u00e0 podcast t\u1eadp trung v\u00e0o Kotlin, n\u01a1i b\u1ea1n c\u00f3 th\u1ec3 h\u1ecdc h\u1ecfi t\u1eeb c\u00e1c chuy\u00ean gia v\u00e0 c\u1eadp nh\u1eadt c\u00e1c xu h\u01b0\u1edbng m\u1edbi.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Th\u1eed nghi\u1ec7m v\u1edbi c\u00e1c t\u00ednh n\u0103ng m\u1edbi<\/b><span style=\"font-weight: 400;\">: Kotlin li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u1edbi c\u00e1c t\u00ednh n\u0103ng m\u1edbi. H\u00e3y th\u1eed nghi\u1ec7m v\u00e0 t\u00ecm hi\u1ec3u c\u00e1c t\u00ednh n\u0103ng m\u1edbi n\u00e0y \u0111\u1ec3 lu\u00f4n \u0111i \u0111\u1ea7u trong vi\u1ec7c s\u1eed d\u1ee5ng ng\u00f4n ng\u1eef.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng nh\u1eefng l\u1eddi khuy\u00ean v\u00e0 kinh nghi\u1ec7m tr\u00ean, b\u1ea1n s\u1ebd c\u00f3 th\u1ec3 h\u1ecdc Kotlin m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 th\u00e0nh c\u00f4ng. H\u00e3y ki\u00ean tr\u00ec v\u00e0 t\u1eadn d\u1ee5ng m\u1ecdi t\u00e0i nguy\u00ean c\u00f3 s\u1eb5n \u0111\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean Kotlin gi\u1ecfi.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac_cau_hoi_thuong_gap_ve_hoc_Kotlin\"><\/span><b>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 h\u1ecdc Kotlin<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>C\u1ea7n nh\u1eefng g\u00ec \u0111\u1ec3 h\u1ecdc Kotlin?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 b\u1eaft \u0111\u1ea7u h\u1ecdc Kotlin, b\u1ea1n c\u1ea7n chu\u1ea9n b\u1ecb nh\u1eefng \u0111i\u1ec1u sau:<\/span><\/p>\n<ul>\n<li><b>Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 l\u1eadp tr\u00ecnh<\/b><span style=\"font-weight: 400;\">: Hi\u1ec3u bi\u1ebft c\u01a1 b\u1ea3n v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m l\u1eadp tr\u00ecnh nh\u01b0 bi\u1ebfn, h\u00e0m, v\u00f2ng l\u1eb7p, v\u00e0 \u0111i\u1ec1u ki\u1ec7n s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng ti\u1ebfp c\u1eadn Kotlin. N\u1ebfu b\u1ea1n \u0111\u00e3 c\u00f3 kinh nghi\u1ec7m v\u1edbi Java, s\u1ebd c\u00e0ng thu\u1eadn l\u1ee3i h\u01a1n v\u00ec Kotlin t\u01b0\u01a1ng th\u00edch v\u1edbi Java.<\/span><\/li>\n<li><b>C\u00f4ng c\u1ee5 ph\u00e1t tri\u1ec3n<\/b><span style=\"font-weight: 400;\">:<\/span><\/li>\n<li><b>JDK (Java Development Kit)<\/b><span style=\"font-weight: 400;\">: Kotlin ch\u1ea1y tr\u00ean JVM (Java Virtual Machine), v\u00ec v\u1eady b\u1ea1n c\u1ea7n c\u00e0i \u0111\u1eb7t JDK.<\/span><\/li>\n<li><b>IDE (Integrated Development Environment)<\/b><span style=\"font-weight: 400;\">: IntelliJ IDEA l\u00e0 IDE \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch s\u1eed d\u1ee5ng cho Kotlin, nh\u01b0ng b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Android Studio, Eclipse, ho\u1eb7c Visual Studio Code v\u1edbi plugin Kotlin.<\/span><\/li>\n<li><b>T\u00e0i li\u1ec7u h\u1ecdc t\u1eadp<\/b><span style=\"font-weight: 400;\">: L\u1ef1a ch\u1ecdn c\u00e1c \u0111\u1ea7u s\u00e1ch, kh\u00f3a h\u1ecdc tr\u1ef1c tuy\u1ebfn, b\u00e0i gi\u1ea3ng ph\u00f9 h\u1ee3p \u0111\u1ec3 h\u1ecdc t\u1eadp v\u00e0 \u0111\u1ecdc k\u1ef9 t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn ch\u00ednh th\u1ee9c t\u1eeb trang web Kotlin s\u1ebd cung c\u1ea5p n\u1ec1n t\u1ea3ng ki\u1ebfn th\u1ee9c v\u1eefng ch\u1eafc cho b\u1ea1n.<\/span><\/li>\n<li><b>Th\u1ef1c h\u00e0nh<\/b><span style=\"font-weight: 400;\">: Th\u1ef1c h\u00e0nh vi\u1ebft m\u00e3 th\u01b0\u1eddng xuy\u00ean th\u00f4ng qua c\u00e1c b\u00e0i t\u1eadp, d\u1ef1 \u00e1n nh\u1ecf v\u00e0 tham gia c\u00e1c trang web luy\u1ec7n t\u1eadp l\u1eadp tr\u00ecnh.<\/span><\/li>\n<\/ul>\n<h3><b>T\u1ea1i sao n\u00ean h\u1ecdc Kotlin?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00f3 nhi\u1ec1u l\u00fd do khi\u1ebfn b\u1ea1n n\u00ean h\u1ecdc Kotlin, bao g\u1ed3m:<\/span><\/p>\n<ul>\n<li><b>Hi\u1ec7u su\u1ea5t v\u00e0 n\u0103ng su\u1ea5t cao<\/b><span style=\"font-weight: 400;\">: C\u00fa ph\u00e1p c\u1ee7a Kotlin ng\u1eafn g\u1ecdn v\u00e0 d\u1ec5 \u0111\u1ecdc h\u01a1n so v\u1edbi Java, gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n v\u00e0 gi\u1ea3m thi\u1ec3u l\u1ed7i l\u1eadp tr\u00ecnh.<\/span><\/li>\n<li><b>An to\u00e0n h\u01a1n<\/b><span style=\"font-weight: 400;\">: Kotlin gi\u00fap tr\u00e1nh c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u01b0 NullPointerException nh\u1edd v\u00e0o h\u1ec7 th\u1ed1ng ki\u1ec3u d\u1eef li\u1ec7u an to\u00e0n v\u1edbi null.<\/span><\/li>\n<li><b>T\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi Java<\/b><span style=\"font-weight: 400;\">: Kotlin c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng c\u00f9ng v\u1edbi Java, cho ph\u00e9p b\u1ea1n s\u1eed d\u1ee5ng l\u1ea1i c\u00e1c th\u01b0 vi\u1ec7n Java hi\u1ec7n c\u00f3 v\u00e0 d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u00e0o c\u00e1c d\u1ef1 \u00e1n Java hi\u1ec7n t\u1ea1i.<\/span><\/li>\n<li><b>H\u1ed7 tr\u1ee3 m\u1ea1nh m\u1ebd t\u1eeb Google<\/b><span style=\"font-weight: 400;\">: V\u1edbi s\u1ef1 c\u00f4ng nh\u1eadn c\u1ee7a Google, Kotlin tr\u1edf th\u00e0nh ng\u00f4n ng\u1eef ch\u00ednh th\u1ee9c \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android, m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i ngh\u1ec1 nghi\u1ec7p trong l\u0129nh v\u1ef1c n\u00e0y.<\/span><\/li>\n<li><b>Ph\u00e1t tri\u1ec3n \u0111a n\u1ec1n t\u1ea3ng<\/b><span style=\"font-weight: 400;\">: Kotlin Multiplatform cho ph\u00e9p b\u1ea1n chia s\u1ebb logic kinh doanh gi\u1eefa c\u00e1c n\u1ec1n t\u1ea3ng nh\u01b0 Android, iOS, web, v\u00e0 desktop, gi\u00fap gi\u1ea3m th\u1eddi gian ph\u00e1t tri\u1ec3n v\u00e0 b\u1ea3o tr\u00ec.<\/span><\/li>\n<li><b>C\u1ed9ng \u0111\u1ed3ng v\u00e0 t\u00e0i nguy\u00ean phong ph\u00fa<\/b><span style=\"font-weight: 400;\">: C\u00f3 r\u1ea5t nhi\u1ec1u t\u00e0i nguy\u00ean h\u1ecdc t\u1eadp, c\u1ed9ng \u0111\u1ed3ng h\u1ed7 tr\u1ee3 v\u00e0 c\u00f4ng c\u1ee5 gi\u00fap b\u1ea1n h\u1ecdc Kotlin d\u1ec5 d\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3.<\/span><\/li>\n<\/ul>\n<h3><b>H\u1ecdc Kotlin c\u00f3 ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin \u0111ang c\u00f3 m\u1ed9t t\u01b0\u01a1ng lai r\u1ea5t s\u00e1ng s\u1ee7a, nh\u1edd v\u00e0o nh\u1eefng y\u1ebfu t\u1ed1 sau:<\/span><\/p>\n<ul>\n<li><b>H\u1ed7 tr\u1ee3 t\u1eeb Google<\/b><span style=\"font-weight: 400;\">: Google \u0111\u00e3 ch\u00ednh th\u1ee9c c\u00f4ng nh\u1eadn Kotlin l\u00e0 ng\u00f4n ng\u1eef ch\u00ednh cho ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android, \u0111i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o s\u1ef1 ph\u1ed5 bi\u1ebfn v\u00e0 ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n c\u1ee7a Kotlin trong c\u1ed9ng \u0111\u1ed3ng l\u1eadp tr\u00ecnh vi\u00ean Android.<\/span><\/li>\n<li><b>T\u00ednh \u0111a d\u1ee5ng<\/b><span style=\"font-weight: 400;\">: Kotlin kh\u00f4ng ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf ph\u00e1t tri\u1ec3n Android m\u00e0 c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ph\u00e1t tri\u1ec3n web backend (v\u1edbi frameworks nh\u01b0 Ktor, Spring Boot), \u1ee9ng d\u1ee5ng \u0111a n\u1ec1n t\u1ea3ng (Kotlin Multiplatform), v\u00e0 th\u1eadm ch\u00ed l\u00e0 l\u1eadp tr\u00ecnh h\u1ec7 th\u1ed1ng v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a.<\/span><\/li>\n<li><b>C\u1ed9ng \u0111\u1ed3ng ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd<\/b><span style=\"font-weight: 400;\">: Kotlin c\u00f3 m\u1ed9t c\u1ed9ng \u0111\u1ed3ng l\u1edbn v\u00e0 \u0111ang ph\u00e1t tri\u1ec3n, gi\u00fap \u0111\u1ee1 l\u1eabn nhau, chia s\u1ebb ki\u1ebfn th\u1ee9c v\u00e0 t\u00e0i nguy\u00ean. C\u00e1c c\u00f4ng c\u1ee5 v\u00e0 th\u01b0 vi\u1ec7n h\u1ed7 tr\u1ee3 Kotlin c\u0169ng ng\u00e0y c\u00e0ng phong ph\u00fa.<\/span><\/li>\n<li><b>Ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng<\/b><span style=\"font-weight: 400;\">: JetBrains, c\u00f4ng ty ph\u00e1t tri\u1ec3n Kotlin, li\u00ean t\u1ee5c c\u1eadp nh\u1eadt v\u00e0 c\u1ea3i ti\u1ebfn ng\u00f4n ng\u1eef, b\u1ed5 sung c\u00e1c t\u00ednh n\u0103ng m\u1edbi v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t, gi\u00fap Kotlin lu\u00f4n hi\u1ec7n \u0111\u1ea1i v\u00e0 c\u1ea1nh tranh.<\/span><\/li>\n<\/ul>\n<blockquote><p><em>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/kotlin-vs-java\/\" target=\"_blank\" rel=\"noopener\"><strong>Kotlin vs Java: Khi n\u00e0o n\u00ean ch\u1ecdn Kotlin? Khi n\u00e0o n\u00ean ch\u1ecdn Java?<\/strong><\/a><\/em><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Ket_luan_Lo_trinh_hoc_Kotlin\"><\/span><strong>K\u1ebft lu\u1eadn L\u1ed9 tr\u00ecnh h\u1ecdc Kotlin<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">H\u1ecdc Kotlin kh\u00f4ng ch\u1ec9 mang l\u1ea1i cho b\u1ea1n c\u00f3 th\u00eam ki\u1ebfn th\u1ee9c v\u1ec1 m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh hi\u1ec7n \u0111\u1ea1i v\u00e0 m\u1ea1nh m\u1ebd, m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i trong l\u0129nh v\u1ef1c ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. V\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 m\u1ea1nh m\u1ebd t\u1eeb Google, t\u00ednh t\u01b0\u01a1ng th\u00edch cao v\u1edbi Java v\u00e0 kh\u1ea3 n\u0103ng ph\u00e1t tri\u1ec3n \u0111a n\u1ec1n t\u1ea3ng, Kotlin \u0111\u00e3 v\u00e0 \u0111ang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u c\u1ee7a nhi\u1ec1u l\u1eadp tr\u00ecnh vi\u00ean.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">B\u1eb1ng c\u00e1ch l\u1eadp k\u1ebf ho\u1ea1ch h\u1ecdc t\u1eadp c\u1ee5 th\u1ec3, th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean, tham gia v\u00e0o c\u1ed9ng \u0111\u1ed3ng l\u1eadp tr\u00ecnh v\u00e0 lu\u00f4n c\u1eadp nh\u1eadt c\u00e1c ki\u1ebfn th\u1ee9c m\u1edbi nh\u1ea5t, b\u1ea1n s\u1ebd nhanh ch\u00f3ng n\u1eafm v\u1eefng Kotlin v\u00e0 \u00e1p d\u1ee5ng hi\u1ec7u qu\u1ea3 v\u00e0o c\u00e1c d\u1ef1 \u00e1n th\u1ef1c t\u1ebf. V\u1edbi nh\u1eefng l\u1ee3i \u00edch v\u00e0 ti\u1ec1m n\u0103ng m\u00e0 Kotlin mang l\u1ea1i, vi\u1ec7c h\u1ecdc ng\u00f4n ng\u1eef n\u00e0y ch\u1eafc ch\u1eafn s\u1ebd l\u00e0 m\u1ed9t \u0111\u1ea7u t\u01b0 x\u1ee9ng \u0111\u00e1ng cho t\u01b0\u01a1ng lai ngh\u1ec1 nghi\u1ec7p c\u1ee7a b\u1ea1n trong ng\u00e0nh c\u00f4ng ngh\u1ec7 th\u00f4ng tin.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kotlin, ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh hi\u1ec7n \u0111\u1ea1i do JetBrains ph\u00e1t tri\u1ec3n, \u0111\u00e3 nhanh ch\u00f3ng tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng ng\u00f4n ng\u1eef \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng nh\u1ea5t trong c\u1ed9ng \u0111\u1ed3ng ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. V\u1edbi c\u00fa ph\u00e1p ng\u1eafn g\u1ecdn, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch cao v\u1edbi Java v\u00e0 hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i, Kotlin kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n h\u00f3a [&hellip;]<\/p>\n","protected":false},"author":203,"featured_media":74040,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-74034","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chuyen-mon-it","category-tai-lieu-it-online"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>H\u1ecdc Kotlin t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u - ITviec Blog<\/title>\n<meta name=\"description\" content=\"Kotlin l\u00e0 m\u1ed9t trong nh\u1eefng ng\u00f4n ng\u1eef m\u00e0 Developer mu\u1ed1n h\u1ecdc nh\u1ea5t hi\u1ec7n nay. 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