{"id":41210,"date":"2023-10-02T13:09:45","date_gmt":"2023-10-02T06:09:45","guid":{"rendered":"https:\/\/itviec.com\/blog\/?p=41210"},"modified":"2023-10-03T16:55:16","modified_gmt":"2023-10-03T09:55:16","slug":"kotlin-la-gi","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/kotlin-la-gi\/","title":{"rendered":"Kotlin l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a, \u01b0u \u0111i\u1ec3m v\u00e0 nh\u1eefng c\u00fa ph\u00e1p c\u01a1 b\u1ea3n c\u1ee7a Kotlin"},"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\/kotlin-la-gi\/#Kotlin_la_gi\" >Kotlin l\u00e0 g\u00ec?<\/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\/kotlin-la-gi\/#Uu_diem_cua_Kotlin_la_gi\" >\u01afu \u0111i\u1ec3m c\u1ee7a Kotlin l\u00e0 g\u00ec?<\/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\/kotlin-la-gi\/#Cu_phap_co_ban_cua_Kotlin\" >C\u00fa ph\u00e1p c\u01a1 b\u1ea3n c\u1ee7a Kotlin<\/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\/kotlin-la-gi\/#So_sanh_Kotlin_voi_cac_ngon_ngu_khac\" >So s\u00e1nh Kotlin v\u1edbi c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c<\/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\/kotlin-la-gi\/#Ung_dung_thuc_te_cua_Kotlin_la_gi\" >\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Kotlin l\u00e0 g\u00ec?<\/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\/kotlin-la-gi\/#Han_che_cua_Kotlin_la_gi\" >H\u1ea1n ch\u1ebf c\u1ee7a Kotlin l\u00e0 g\u00ec?<\/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\/kotlin-la-gi\/#Nhung_cau_hoi_ve_Kotlin_thuong_gap\" >Nh\u1eefng c\u00e2u h\u1ecfi v\u1ec1 Kotlin th\u01b0\u1eddng g\u1eb7p<\/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\/kotlin-la-gi\/#Tong_ket_Kotlin_la_gi\" >T\u1ed5ng k\u1ebft Kotlin l\u00e0 g\u00ec<\/a><\/li><\/ul><\/nav><\/div>\n<p><em><strong>N\u1ed5i l\u00ean t\u1eeb n\u0103m 2017, khi l\u00e0 m\u1ed9t trong nh\u1eefng ng\u00f4n ng\u1eef d\u00f9ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m cho h\u1ec7 \u0111i\u1ec1u h\u00e0nh Android, Kotlin ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn v\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi nh\u1eefng l\u1eadp tr\u00ecnh vi\u00ean hi\u1ec7n nay. H\u00e3y c\u00f9ng ITviec t\u00ecm hi\u1ec3u t\u1ed5ng quan v\u1ec1 Kotlin l\u00e0 g\u00ec qua b\u00e0i vi\u1ebft sau \u0111\u00e2y nh\u00e9!<\/strong><\/em><\/p>\n<p><span style=\"font-weight: 400;\">Trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd n\u1eafm r\u00f5 nh\u1eefng ki\u1ebfn th\u1ee9c sau:<\/span><\/p>\n<ul>\n<li aria-level=\"1\">Kotlin l\u00e0 g\u00ec?<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Kotlin<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u1ef1 kh\u00e1c nhau gi\u1eefa Kotlin v\u00e0 c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00fa ph\u00e1p c\u01a1 b\u1ea3n c\u1ee7a Kotlin<\/span><\/li>\n<\/ul>\n<blockquote><p>Tham kh\u1ea3o: <a href=\"https:\/\/itviec.com\/viec-lam-it\/kotlin\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7c l\u00e0m Kotlin<\/a> &#8220;ch\u1ea5t&#8221; tr\u00ean ITviec<\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Kotlin_la_gi\"><\/span><b>Kotlin l\u00e0 g\u00ec?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Kotlin l\u00e0 <strong>ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh t\u0129nh (static)<\/strong> do <a href=\"https:\/\/www.jetbrains.com\/\" target=\"_blank\" rel=\"noopener\">JetBrains<\/a> ph\u00e1t tri\u1ec3n. Ng\u00f4n ng\u1eef n\u00e0y \u0111\u00e3 t\u1ea1o n\u00ean c\u00e1c <a href=\"https:\/\/itviec.com\/blog\/ide-la-gi\/\" target=\"_blank\" rel=\"noopener\">IDE<\/a> \u201c\u0111\u1eb3ng c\u1ea5p th\u1ebf gi\u1edbi\u201d nh\u01b0 IntelliJ IDEA, PhpStorm, Appcode,&#8230;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kotlin \u0111\u01b0\u1ee3c JetBrains gi\u1edbi thi\u1ec7u l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 2011 v\u00e0 l\u00e0 ng\u00f4n ng\u1eef m\u1edbi cho JVM. Kotlin l\u00e0 ng\u00f4n ng\u1eef h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (object-oriented) v\u00e0 l\u00e0 \u201cng\u00f4n ng\u1eef t\u1ed1t h\u01a1n\u201d so v\u1edbi <a href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-java\/\" target=\"_blank\" rel=\"noopener\">Java<\/a> nh\u01b0ng v\u1eabn c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c ho\u00e0n to\u00e0n v\u1edbi code Java.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kotlin \u0111\u01b0\u1ee3c t\u00e0i tr\u1ee3 b\u1edfi Google, \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 l\u00e0 m\u1ed9t trong nh\u1eefng ng\u00f4n ng\u1eef ch\u00ednh th\u1ee9c cho Android Development n\u0103m 2017. \u0110\u1ed3ng th\u1eddi, Kotlin c\u00f2n thu\u1ed9c top 10 <a href=\"https:\/\/itviec.com\/blog\/ngon-ngu-lap-trinh\/\" target=\"_blank\" rel=\"noopener\">ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh<\/a> n\u00ean h\u1ecdc n\u0103m 2023 theo k\u1ebft qu\u1ea3 kh\u1ea3o s\u00e1t \u201cB\u00e1o c\u00e1o L\u01b0\u01a1ng IT: <a href=\"https:\/\/itviec.com\/blog\/bao-cao-luong-it\/?utm_source=blog&amp;utm_medium=angle-2&amp;utm_campaign=salary-report-2022&amp;utm_content=dec2022\" target=\"_blank\" rel=\"noopener\"><strong>M\u1ee9c L\u01b0\u01a1ng &amp; Mong \u0110\u1ee3i Ngh\u1ec1 Nghi\u1ec7p C\u1ee7a C\u00e1c Chuy\u00ean Gia IT 2022-2023<\/strong><\/a>\u201d t\u1eeb ITviec.<br \/>\n<\/span><\/p>\n<blockquote><p>T\u00ecm hi\u1ec3u th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/android-developer\/\" target=\"_blank\" rel=\"noopener\">Android Developer l\u00e0 l\u00e0m g\u00ec?<\/a><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Uu_diem_cua_Kotlin_la_gi\"><\/span><b>\u01afu \u0111i\u1ec3m c\u1ee7a Kotlin l\u00e0 g\u00ec?<br \/>\n<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">M\u1eb7c d\u00f9 Kotlin c\u00f2n kh\u00e1 m\u1edbi so v\u1edbi c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh nh\u01b0 Java, nh\u01b0ng ng\u00f4n ng\u1eef n\u00e0y c\u00f3 r\u1ea5t nhi\u1ec1u \u01b0u th\u1ebf so v\u1edbi vi\u1ec7c ph\u00e1t tri\u1ec3n Java Android truy\u1ec1n th\u1ed1ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 5 \u01b0u \u0111i\u1ec3m c\u1ee7a Kotlin:<\/span><\/p>\n<h3><b>\u0110\u01b0\u1eddng cong h\u1ecdc t\u1eadp (learning curve) nh\u1ecf h\u01a1n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">So v\u1edbi ng\u01b0\u1eddi ti\u1ec1n nhi\u1ec7m Java, qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp c\u1ee7a Kotlin ng\u1eafn h\u01a1n nhi\u1ec1u. B\u1ea5t k\u1ef3 ai c\u00f3 hi\u1ec3u bi\u1ebft c\u01a1 b\u1ea3n v\u1ec1 l\u1eadp tr\u00ecnh \u0111\u1ec1u c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u code b\u1eb1ng Kotlin m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 kinh nghi\u1ec7m v\u1edbi Android n\u00e0o tr\u01b0\u1edbc \u0111\u00f3. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Thay v\u00ec ch\u1ec9 sao ch\u00e9p c\u00e1c ch\u1ee9c n\u0103ng c\u1ee7a Java, Kotlin t\u1eadp trung v\u00e0o vi\u1ec7c n\u00e2ng cao c\u00e1c t\u00ednh n\u0103ng c\u1ee7a n\u00f3 tr\u1edf n\u00ean \u0111\u00e1ng tin c\u1eady v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng h\u01a1n, d\u1ef1a tr\u00ean nh\u1eefng ph\u1ea7n h\u1eefu \u00edch nh\u1ea5t c\u1ee7a c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh c\u1ea5p cao. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p Kotlin cung c\u1ea5p ch\u1ee9c n\u0103ng t\u01b0\u01a1ng t\u1ef1 v\u1edbi c\u1ea5u tr\u00fac g\u1ecdn g\u00e0ng v\u00e0 d\u1ec5 h\u1ecdc h\u01a1n nhi\u1ec1u.<\/span><\/p>\n<h3><b>C\u1ea3i thi\u1ec7n n\u0103ng su\u1ea5t<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">V\u1edbi t\u00ednh ch\u1ea5t d\u1ec5 h\u1ecdc, n\u0103ng su\u1ea5t khi l\u00e0m vi\u1ec7c v\u1edbi Kotlin cao h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi Java v\u00e0 c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh d\u00e0nh cho Android kh\u00e1c. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tuy nhi\u00ean, v\u1edbi ch\u1ee9c n\u0103ng v\u00e0 c\u00e1c t\u00ednh n\u0103ng \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc k\u1ef9 l\u01b0\u1ee1ng, n\u1ebfu b\u1ea1n th\u1ef1c s\u1ef1 mu\u1ed1n l\u00e0m cho vi\u1ec7c code cho Android tr\u1edf n\u00ean th\u00fa v\u1ecb v\u00e0 d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u th\u00ec Kotlin l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t. Kotlin c\u00f3 th\u1ec3 c\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3 \u0111\u1ed3ng th\u1eddi r\u1ea5t m\u1ea1nh m\u1ebd \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ee9c t\u1ea1p \u0111\u00f2i h\u1ecfi nhi\u1ec1u logic nghi\u1ec7p v\u1ee5.<\/span><\/p>\n<h3><b>\u00cdt bug h\u01a1n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">N\u1ebfu b\u1ea1n code b\u1eb1ng Kotlin, kh\u1ea3 n\u0103ng m\u1eafc bug l\u00e0 c\u1ef1c k\u1ef3 \u00edt so v\u1edbi c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u1ee9c t\u1ea1p kh\u00e1c.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L\u00fd do r\u1ea5t \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 hi\u1ec3u. B\u1edfi v\u00ec n\u00f3 d\u1ec5 h\u1ecdc v\u00e0 c\u1ea7n \u00edt code h\u01a1n \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00f9ng m\u1ed9t vi\u1ec7c n\u00ean s\u1ed1 l\u01b0\u1ee3ng bug c\u0169ng s\u1ebd \u00edt h\u01a1n. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u00ec v\u1eady, n\u1ebfu b\u1ea1n l\u00e0 m\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean Kotlin th\u00ec th\u1eddi gian b\u1ea1n b\u1ecf ra \u0111\u1ec3 s\u1eeda bug s\u1ebd c\u1ef1c k\u1ef3 th\u1ea5p so v\u1edbi c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c. Ch\u1eafc ch\u1eafn l\u00e0 m\u1ed9t \u0111i\u1ec3m thu h\u00fat \u0111\u1ed1i v\u1edbi c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean c\u00f3 kinh nghi\u1ec7m, nh\u1eefng ng\u01b0\u1eddi th\u01b0\u1eddng xuy\u00ean d\u00e0nh h\u00e0ng gi\u1edd \u0111\u1ec3 t\u00ecm ra ngu\u1ed3n g\u1ed1c c\u1ee7a bug.<\/span><\/p>\n<blockquote><p>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/bug-la-gi\/\" target=\"_blank\" rel=\"noopener\">Nh\u1eefng l\u1ee3i \u00edch \u0111\u1ebfn t\u1eeb vi\u1ec7c \u201cchi\u1ebfn \u0111\u1ea5u\u201d v\u1edbi bug l\u00e0 g\u00ec?\u00a0<\/a><\/p><\/blockquote>\n<h3><b>\u0110\u1ed9 tin c\u1eady t\u1ed1t h\u01a1n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u l\u1eadp tr\u00ecnh vi\u00ean h\u01b0\u1edbng t\u1edbi c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh d\u1ec5 vi\u1ebft v\u00e0 qu\u1ea3n l\u00fd. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u1ee9c t\u1ea1p nh\u01b0 Java c\u00f3 th\u1ec3 tr\u1edf n\u00ean l\u1ed7i th\u1eddi trong t\u01b0\u01a1ng lai g\u1ea7n. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">T\u1ea5t nhi\u00ean, n\u1ebfu b\u1ea1n mu\u1ed1n s\u1eed d\u1ee5ng c\u00e1c ch\u1ee9c n\u0103ng c\u1ef1c k\u1ef3 n\u00e2ng cao m\u00e0 ch\u1ec9 c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1c ng\u00f4n ng\u1eef c\u1ea5p th\u1ea5p nh\u01b0 Java, b\u1ea1n s\u1ebd kh\u00f4ng c\u00f3 l\u1ef1a ch\u1ecdn n\u00e0o kh\u00e1c. N\u1ebfu kh\u00f4ng ph\u1ea3i nh\u01b0 v\u1eady, vi\u1ec7c s\u1eed d\u1ee5ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh c\u1ea5p cao nh\u01b0 Kotlin ch\u1eafc ch\u1eafn s\u1ebd mang l\u1ea1i cho b\u1ea1n \u0111\u1ed9 tin c\u1eady t\u1ed1t h\u01a1n trong t\u01b0\u01a1ng lai.<\/span><\/p>\n<h3><b>K\u1ebft h\u1ee3p v\u1edbi Java<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">N\u1ebfu mu\u1ed1n b\u1eaft \u0111\u1ea7u s\u1eed d\u1ee5ng Kotlin, b\u1ea1n kh\u00f4ng c\u1ea7n ph\u1ea3i vi\u1ebft l\u1ea1i ho\u00e0n to\u00e0n c\u01a1 s\u1edf code c\u1ee7a m\u00ecnh sang ng\u00f4n ng\u1eef \u0111\u00f3. B\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9 c\u1ea7n t\u00edch h\u1ee3p n\u00f3 v\u1edbi code Java hi\u1ec7n c\u00f3 v\u00e0 b\u1eaft \u0111\u1ea7u vi\u1ebft c\u00e1c ph\u1ea7n m\u1edbi trong Kotlin. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">L\u00fd do r\u1ea5t \u0111\u01a1n gi\u1ea3n, Kotlin \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean Java. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 b\u1ea5t k\u1ef3 code n\u00e0o b\u1ea1n vi\u1ebft b\u1eb1ng Kotlin v\u1ec1 c\u01a1 b\u1ea3n \u0111\u1ec1u l\u00e0 code Java. \u0110\u00e2y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf r\u1ea5t l\u1edbn cho nh\u1eefng c\u00f4ng ty \u0111\u00e3 s\u1eed d\u1ee5ng nhi\u1ec1u code Java.<\/span><\/p>\n<blockquote><p>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-java\/\" target=\"_blank\" rel=\"noopener\">H\u1ecdc l\u1eadp tr\u00ecnh Java c\u01a1 b\u1ea3n \u0111\u1ea7y \u0111\u1ee7 v\u1edbi 10+ gi\u00e1o tr\u00ecnh Java m\u1edbi nh\u1ea5t [2022]<\/a><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Cu_phap_co_ban_cua_Kotlin\"><\/span><b>C\u00fa ph\u00e1p c\u01a1 b\u1ea3n c\u1ee7a Kotlin<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>Khai b\u00e1o Package v\u00e0 Import<\/b><\/h3>\n<pre><span style=\"font-weight: 400;\">package my.demo<\/span>\r\n\r\n<span style=\"font-weight: 400;\">import kotlin.text.*<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\/\/ ...<\/span><\/pre>\n<h3><b>\u0110i\u1ec3m b\u1eaft \u0111\u1ea7u (Entry point)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y ch\u00ednh l\u00e0 ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">fun main() {<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0println(\"Hello world!\")<\/span>\r\n\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<h3><b>M\u1ed9t d\u1ea1ng main kh\u00e1c ch\u1ea5p nh\u1eadn s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ed1i s\u1ed1 Chu\u1ed7i (String) thay \u0111\u1ed5i.<\/b><\/h3>\n<pre><span style=\"font-weight: 400;\">fun main(args: Array&lt;String&gt;) {<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0println(args.contentToString())<\/span>\r\n\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<h3><b>Ghi \u0111\u1ea7u ra (Standard output)<\/b><\/h3>\n<pre><span style=\"font-weight: 400;\">print(\"Hello \")<\/span>\r\n\r\n<span style=\"font-weight: 400;\">print(\"world!\")<\/span>\r\n\r\n<span style=\"font-weight: 400;\">C\u00e2u l\u1ec7nh println ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng t\u1ef1 print nh\u01b0ng s\u1ebd xu\u1ed1ng d\u00f2ng.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">println(\"Hello world!\")<\/span>\r\n\r\n<span style=\"font-weight: 400;\">println(42)<\/span><\/pre>\n<h3><b>H\u00e0m (Functions)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1ed9t h\u00e0m v\u1edbi 2 lo\u1ea1i tham s\u1ed1 Int (parameters) v\u00e0 Int tr\u1ea3 v\u1ec1 (return).<\/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><\/pre>\n<p><span style=\"font-weight: 400;\">Th\u00e2n h\u00e0m c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c. Ki\u1ec3u tr\u1ea3 v\u1ec1 c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c suy ra (inferred).<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">fun sum(a: Int, b: Int) = a + b<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">M\u1ed9t h\u00e0m tr\u1ea3 v\u1ec1 kh\u00f4ng gi\u00e1 tr\u1ecb.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">fun printSum(a: Int, b: Int): Unit {<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0println(\"sum of $a and $b is ${a + b}\")<\/span>\r\n\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<h3><b>Bi\u1ebfn (Variables)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e1c bi\u1ebfn c\u1ee5c b\u1ed9 ch\u1ec9 \u0111\u1ecdc \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng t\u1eeb kh\u00f3a val. Ch\u00fang ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u00e1n m\u1ed9t gi\u00e1 tr\u1ecb m\u1ed9t l\u1ea7n.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">val a: Int = 1\u00a0 \/\/ immediate assignment<\/span>\r\n\r\n<span style=\"font-weight: 400;\">val b = 2 \u00a0 \/\/ `Int` type is inferred<\/span>\r\n\r\n<span style=\"font-weight: 400;\">val c: Int\u00a0 \/\/ Type required when no initializer is provided<\/span>\r\n\r\n<span style=\"font-weight: 400;\">c = 3 \u00a0 \u00a0 \u00a0 \/\/ deferred assignment<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">C\u00e1c bi\u1ebfn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u00e1n l\u1ea1i s\u1eed d\u1ee5ng t\u1eeb kh\u00f3a var.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">var x = 5 \/\/ `Int` type is inferred<\/span>\r\n\r\n<span style=\"font-weight: 400;\">x += 1<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 khai b\u00e1o c\u00e1c bi\u1ebfn \u1edf c\u1ea5p cao nh\u1ea5t.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">val PI = 3.14<\/span>\r\n\r\n<span style=\"font-weight: 400;\">var x = 0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">fun incrementX() {\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0x += 1\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<h3><b>T\u1ea1o c\u00e1c class v\u00e0 phi\u00ean b\u1ea3n (instance)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed9t class, h\u00e3y s\u1eed d\u1ee5ng t\u1eeb kh\u00f3a class.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u00ed d\u1ee5: <\/span><\/p>\n<pre><span style=\"font-weight: 400;\">class Shape<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">C\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a m\u1ed9t class c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea trong ph\u1ea7n khai b\u00e1o ho\u1eb7c ph\u1ea7n th\u00e2n c\u1ee7a n\u00f3.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">class Rectangle(var height: Double, var length: Double) {<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0var perimeter = (height + length) * 2<\/span>\r\n\r\n<span style=\"font-weight: 400;\">}<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">H\u00e0m t\u1ea1o m\u1eb7c \u0111\u1ecbnh v\u1edbi c\u00e1c tham s\u1ed1 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea trong ph\u1ea7n khai b\u00e1o class s\u1ebd t\u1ef1 \u0111\u1ed9ng c\u00f3 s\u1eb5n.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">val rectangle = Rectangle(5.0, 2.0)<\/span>\r\n\r\n<span style=\"font-weight: 400;\">println(\"The perimeter is ${rectangle.perimeter}\")<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">S\u1ef1 k\u1ebf th\u1eeba gi\u1eefa c\u00e1c class \u0111\u01b0\u1ee3c khai b\u00e1o b\u1eb1ng d\u1ea5u hai ch\u1ea5m (:). C\u00e1c class m\u1eb7c \u0111\u1ecbnh l\u00e0 cu\u1ed1i c\u00f9ng; \u0111\u1ec3 l\u00e0m cho m\u1ed9t class c\u00f3 th\u1ec3 k\u1ebf th\u1eeba, h\u00e3y \u0111\u00e1nh d\u1ea5u n\u00f3 l\u00e0 m\u1edf.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1edf class Shape<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">class Rectangle(var height: Double, var length: Double): Shape() {<\/span>\r\n\r\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0var perimeter = (height + length) * 2<\/span>\r\n\r\n<span style=\"font-weight: 400;\">}<\/span>\r\n<b><\/b><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"So_sanh_Kotlin_voi_cac_ngon_ngu_khac\"><\/span><b>So s\u00e1nh Kotlin v\u1edbi c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Sau khi \u0111\u00e3 n\u1eafm t\u1ed5ng quan Kotlin l\u00e0 g\u00ec, ch\u00fang ta c\u00f3 th\u1ec3 so s\u00e1nh Kotlin v\u1edbi m\u1ed9t s\u1ed1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u1ed5 bi\u1ebfn kh\u00e1c d\u1ef1a tr\u00ean m\u1ed9t s\u1ed1 ti\u00eau ch\u00ed nh\u01b0 sau. T\u00f9y v\u00e0o t\u00ednh ch\u1ea5t c\u1ee7a d\u1ef1 \u00e1n, l\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc v\u00e0 l\u1ef1a ch\u1ecdn ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u00f9 h\u1ee3p trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p kh\u00e1c nhau.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><\/td>\n<td style=\"text-align: left;\"><b>Kotlin<\/b><\/td>\n<td style=\"text-align: left;\"><b>Java<\/b><\/td>\n<td style=\"text-align: left;\"><a href=\"https:\/\/itviec.com\/blog\/tai-lieu-lap-trinh-python\/\" target=\"_blank\" rel=\"noopener\"><b>Python<\/b><\/a><\/td>\n<td style=\"text-align: left;\"><b>Swift<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><b>C\u00fa ph\u00e1p<\/b><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Kotlin n\u1ed5i ti\u1ebfng nh\u1edd c\u00fa ph\u00e1p ng\u1eafn g\u1ecdn v\u00e0 d\u1ec5 \u0111\u1ecdc. Code c\u1ee7a Kotlin c\u00f3 xu h\u01b0\u1edbng ng\u1eafn g\u1ecdn gi\u00fap ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u d\u1ec5 ti\u1ebfp c\u1eadn h\u01a1n. Ngo\u00e0i ra, Kotlin s\u1eed d\u1ee5ng kh\u1ea3 n\u0103ng lo\u1ea1i suy lu\u1eadn (type inference), th\u01b0\u1eddng lo\u1ea1i b\u1ecf nhu c\u1ea7u khai b\u00e1o ki\u1ec3u bi\u1ebfn r\u00f5 r\u00e0ng.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">So v\u1edbi Kotlin, Java y\u00eau c\u1ea7u c\u00fa ph\u00e1p r\u01b0\u1eddm r\u00e0 v\u00e0 khai b\u00e1o \u0111\u1ea7y \u0111\u1ee7 h\u01a1n.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Python n\u1ed5i ti\u1ebfng v\u00ec s\u1ef1 \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng, th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Swift \u01b0u ti\u00ean c\u00fa ph\u00e1p r\u00f5 r\u00e0ng v\u00e0 hi\u1ec7n \u0111\u1ea1i. Swift nh\u1ea5n m\u1ea1nh v\u00e0o s\u1ef1 r\u00f5 r\u00e0ng v\u00e0 an to\u00e0n, nh\u1eb1m m\u1ee5c \u0111\u00edch gi\u1ea3m code so\u1ea1n s\u1eb5n v\u00e0 n\u00e2ng cao kh\u1ea3 n\u0103ng \u0111\u1ecdc code.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><b>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c<\/b><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Kotlin ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi Java, cho ph\u00e9p t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch c\u00e1c th\u01b0 vi\u1ec7n v\u00e0 code Java v\u00e0o c\u00e1c d\u1ef1 \u00e1n Kotlin v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Java c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c ho\u00e0n to\u00e0n v\u1edbi Kotlin.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Python c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u1edbi c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c th\u00f4ng qua giao di\u1ec7n v\u00e0 h\u1ed7 tr\u1ee3 th\u01b0 vi\u1ec7n m\u1edf r\u1ed9ng.<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Swift do Apple ph\u00e1t tri\u1ec3n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c thi\u1ebft b\u1ecb iOS v\u00e0 macOS, \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u t\u1ed1t cho c\u00e1c n\u1ec1n t\u1ea3ng n\u00e0y.\u00a0<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><b>C\u1ed9ng \u0111\u1ed3ng v\u00e0 H\u1ec7 sinh th\u00e1i<\/b><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">C\u1ed9ng \u0111\u1ed3ng c\u1ee7a Kotlin ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n v\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a JetBrains v\u00e0 Google d\u00e0nh cho vi\u1ec7c ph\u00e1t tri\u1ec3n Android.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Java c\u00f3 h\u1ec7 sinh th\u00e1i th\u01b0 vi\u1ec7n r\u1ed9ng l\u1edbn h\u01a1n do c\u00f3 l\u1ecbch s\u1eed l\u00e2u \u0111\u1eddi h\u01a1n v\u1edbi \u0111a d\u1ea1ng c\u00e1c ngu\u1ed3n t\u00e0i li\u1ec7u.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Python t\u1ef1 h\u00e0o c\u00f3 m\u1ed9t h\u1ec7 sinh th\u00e1i r\u1ed9ng l\u1edbn g\u1ed3m c\u00e1c th\u01b0 vi\u1ec7n v\u00e0 framework cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau, t\u1eeb ph\u00e1t tri\u1ec3n web \u0111\u1ebfn khoa h\u1ecdc d\u1eef li\u1ec7u.<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Swift c\u00f3 m\u1ed9t c\u1ed9ng \u0111\u1ed3ng m\u1ea1nh m\u1ebd v\u00e0 \u0111\u01b0\u1ee3c Apple h\u1ed7 tr\u1ee3 ch\u00ednh th\u1ee9c. H\u1ec7 sinh th\u00e1i c\u1ee7a Swift ch\u1ee7 y\u1ebfu t\u1eadp trung v\u00e0o ph\u00e1t tri\u1ec3n iOS, macOS, watchOS v\u00e0 tvOS<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><b>\u0110\u01b0\u1eddng cong h\u1ecdc t\u1eadp<\/b><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Kotlin, m\u1eb7c d\u00f9 d\u1ec5 ti\u1ebfp c\u1eadn nh\u01b0ng c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1eddng cong h\u1ecdc t\u1eadp d\u1ed1c h\u01a1n m\u1ed9t ch\u00fat \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u00ec n\u00f3 \u0111\u01b0\u1ee3c nh\u1eadp t\u0129nh v\u00e0 c\u00f3 nhi\u1ec1u t\u00ednh n\u0103ng n\u00e2ng cao h\u01a1n.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Java v\u1edbi c\u00e1c c\u00fa ph\u00e1p t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p s\u1ebd khi\u1ebfn ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u g\u1eb7p kh\u00f3 kh\u0103n \u0111\u1ec3 th\u00e0nh th\u1ea1o ng\u00f4n ng\u1eef n\u00e0y.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Python th\u01b0\u1eddng \u0111\u01b0\u1ee3c khuy\u00ean d\u00f9ng l\u00e0 m\u1ed9t trong nh\u1eefng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u nh\u1ea5t do c\u00fa ph\u00e1p \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 \u0111\u1ecdc.<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">T\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 c\u00e1c t\u00ednh n\u0103ng hi\u1ec7n \u0111\u1ea1i c\u1ee7a Swift c\u00f9ng v\u1edbi t\u00e0i li\u1ec7u phong ph\u00fa c\u0169ng khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh ng\u00f4n ng\u1eef th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u quan t\u00e2m \u0111\u1ebfn l\u1eadp tr\u00ecnh cho iOS.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><b>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/b><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Kotlin \u0111\u00e3 tr\u1edf th\u00e0nh ng\u00f4n ng\u1eef \u01b0a th\u00edch \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android nh\u1edd c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao v\u00e0 kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p v\u1edbi Android Studio.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Java v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c d\u1ef1 \u00e1n Android c\u0169, hay k\u1ec3 c\u1ea3 ph\u00e1t tri\u1ec3n ph\u1ee5 tr\u1ee3, ph\u00e1t tri\u1ec3n web v\u00e0 \u1ee9ng d\u1ee5ng d\u00e0nh cho m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n, t\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n v\u00e0 s\u1edf th\u00edch c\u1ee7a l\u1eadp tr\u00ecnh vi\u00ean.<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Python r\u1ea5t linh ho\u1ea1t v\u00e0 v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 ph\u00e1t tri\u1ec3n web, ph\u00e2n t\u00edch d\u1eef li\u1ec7u, h\u1ecdc m\u00e1y v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a. Nhi\u1ec1u th\u01b0 vi\u1ec7n v\u00e0 framework c\u00f4ng t\u00e1c \u0111a d\u1ea1ng c\u1ee7a Python khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u mi\u1ec1n kh\u00e1c nhau.<\/span><\/td>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Swift ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng iOS, macOS, watchOS v\u00e0 tvOS trong h\u1ec7 sinh th\u00e1i Apple.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p>\u0110\u1eebng b\u1ecf l\u1ee1:<\/p>\n<p><a href=\"https:\/\/itviec.com\/viec-lam-it\/java\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7c l\u00e0m Java<\/a> h\u1ea5p d\u1eabn tr\u00ean ITviec<\/p>\n<p><a href=\"https:\/\/itviec.com\/viec-lam-it\/python\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7c l\u00e0m Python<\/a> h\u1ea5p d\u1eabn tr\u00ean ITviec<\/p>\n<p><a href=\"https:\/\/itviec.com\/viec-lam-it\/swift\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7c l\u00e0m Swift<\/a> h\u1ea5p d\u1eabn tr\u00ean ITviec<\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Ung_dung_thuc_te_cua_Kotlin_la_gi\"><\/span><b>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Kotlin l\u00e0 g\u00ec?<br \/>\n<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>L\u1eadp tr\u00ecnh \u1ee9ng d\u1ee5ng Android<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">L\u00e0 m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111a n\u0103ng, Kotlin \u0111ang t\u1ea1o n\u00ean l\u00e0n s\u00f3ng trong l\u0129nh v\u1ef1c l\u1eadp tr\u00ecnh \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng. Kotlin v\u00f4 c\u00f9ng th\u00edch h\u1ee3p \u0111\u1ec3 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android, cung c\u1ea5p cho c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean b\u1ed9 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u1ee9ng d\u1ee5ng Android g\u1ed1c m\u1ea1nh m\u1ebd v\u00e0 hi\u1ec7u qu\u1ea3.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00fa ph\u00e1p ng\u1eafn g\u1ecdn v\u00e0 c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao c\u1ee7a Kotlin khi\u1ebfn Kotlin tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng y\u00eau th\u00edch, cho ph\u00e9p h\u1ecd vi\u1ebft code r\u00f5 r\u00e0ng v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec. <\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">V\u00ed d\u1ee5: H\u00e3y xem x\u00e9t m\u1ed9t \u1ee9ng d\u1ee5ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1eb1ng Kotlin c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd li\u1ec1n m\u1ea1ch c\u00e1c t\u01b0\u01a1ng t\u00e1c c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, ho\u1ea1t \u0111\u1ed9ng c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 c\u1eadp nh\u1eadt theo th\u1eddi gian th\u1ef1c, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m mua s\u1eafm m\u01b0\u1ee3t m\u00e0 v\u00e0 h\u1ea5p d\u1eabn.<\/span><b><\/b><\/p><\/blockquote>\n<h3><b>L\u1eadp tr\u00ecnh web<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Ngo\u00e0i \u1ee9ng d\u1ee5ng d\u00e0nh cho thi\u1ebft b\u1ecb di \u0111\u1ed9ng, b\u1ea1n c\u00f2n c\u00f3 th\u1ec3 d\u00f9ng Kotlin cho c\u00e1c d\u1ef1 \u00e1n l\u1eadp tr\u00ecnh web. N\u00f3 v\u01b0\u1ee3t tr\u1ed9i nh\u01b0 m\u1ed9t ng\u00f4n ng\u1eef ph\u00eda m\u00e1y ch\u1ee7, mang \u0111\u1ebfn cho c\u00e1c s\u1ef1 linh ho\u1ea1t v\u00e0 n\u0103ng su\u1ea5t \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c \u1ee9ng d\u1ee5ng web hi\u1ec7u su\u1ea5t cao v\u00e0 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00e1c <a href=\"https:\/\/itviec.com\/blog\/framework-la-gi-top-framework-pho-bien-nhat\/\" target=\"_blank\" rel=\"noopener\">framework<\/a> nh\u01b0 <a href=\"https:\/\/spring.io\/projects\/spring-boot\" target=\"_blank\" rel=\"noopener\"><strong>Spring Boot<\/strong><\/a> v\u00e0 <a href=\"https:\/\/ktor.io\/\" target=\"_blank\" rel=\"noopener\"><strong>Ktor<\/strong><\/a> cung c\u1ea5p s\u1ef1 h\u1ed7 tr\u1ee3 tuy\u1ec7t v\u1eddi cho Kotlin, gi\u00fap vi\u1ec7c l\u1eadp tr\u00ecnh logic ph\u1ee5 tr\u1ee3 cho c\u00e1c d\u1ecbch v\u1ee5 web v\u00e0 <a href=\"https:\/\/itviec.com\/blog\/api-la-gi\/\" target=\"_blank\" rel=\"noopener\">API<\/a> tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n. <\/span><\/p>\n<blockquote><p><em><span style=\"font-weight: 400;\">V\u00ed d\u1ee5: M\u1ed9t th\u1ecb tr\u01b0\u1eddng tr\u1ef1c tuy\u1ebfn \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng Kotlin v\u00e0 Spring Boot c\u00f3 th\u1ec3 x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng \u0111\u0103ng k\u00fd c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, c\u1eadp nh\u1eadt danh m\u1ee5c s\u1ea3n ph\u1ea9m v\u00e0 x\u1eed l\u00fd thanh to\u00e1n an to\u00e0n, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m web li\u1ec1n m\u1ea1ch v\u00e0 ph\u1ea3n h\u1ed3i nhanh.<\/span><\/em><b><\/b><\/p><\/blockquote>\n<h3><b>L\u1eadp tr\u00ecnh ph\u1ea7n m\u1ec1m cho PC<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">T\u00ednh linh ho\u1ea1t c\u1ee7a Kotlin kh\u00f4ng d\u1eebng l\u1ea1i \u1edf vi\u1ec7c ph\u00e1t tri\u1ec3n web v\u00e0 thi\u1ebft b\u1ecb di \u0111\u1ed9ng; n\u00f3 c\u00f2n m\u1edf r\u1ed9ng sang l\u1eadp tr\u00ecnh ph\u1ea7n m\u1ec1m cho PC. C\u00e1c l\u1eadp tr\u00ecnh c\u00f3 th\u1ec3 khai th\u00e1c kh\u1ea3 n\u0103ng c\u1ee7a Kotlin \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c \u1ee9ng d\u1ee5ng m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n \u0111a n\u1ec1n t\u1ea3ng v\u1edbi giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng phong ph\u00fa.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00e1c framework nh\u01b0 <a href=\"https:\/\/tornadofx.io\/\" target=\"_blank\" rel=\"noopener\"><strong>TornadoFX<\/strong><\/a> v\u00e0 <a href=\"https:\/\/openjfx.io\/\" target=\"_blank\" rel=\"noopener\"><strong>JavaFX<\/strong><\/a> cung c\u1ea5p c\u00e1c c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 t\u1ea1o c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ea1y tr\u01a1n tru tr\u00ean nhi\u1ec1u h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1c nhau. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t c\u00f4ng c\u1ee5 qu\u1ea3n l\u00fd d\u1ef1 \u00e1n \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1eb1ng Kotlin v\u1edbi giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng \u0111\u1eb9p m\u1eaft v\u00e0 tr\u1ef1c quan, cho ph\u00e9p c\u00e1c nh\u00f3m c\u1ed9ng t\u00e1c li\u1ec1n m\u1ea1ch, qu\u1ea3n l\u00fd nhi\u1ec7m v\u1ee5 hi\u1ec7u qu\u1ea3 v\u00e0 tr\u1ef1c quan h\u00f3a ti\u1ebfn tr\u00ecnh d\u1ef1 \u00e1n, t\u1ea5t c\u1ea3 ch\u1ec9 trong m\u1ed9t \u1ee9ng d\u1ee5ng d\u00e0nh cho m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00fa ph\u00e1p r\u00f5 r\u00e0ng v\u00e0 hi\u1ec7n \u0111\u1ea1i c\u1ee7a Kotlin, k\u1ebft h\u1ee3p v\u1edbi c\u00e1c t\u00ednh n\u0103ng an to\u00e0n, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a ph\u1ea7n m\u1ec1m v\u00e0 s\u1ef1 h\u00e0i l\u00f2ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Han_che_cua_Kotlin_la_gi\"><\/span><b>H\u1ea1n ch\u1ebf c\u1ee7a Kotlin l\u00e0 g\u00ec?<br \/>\n<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Kotlin c\u00f3 r\u1ea5t nhi\u1ec1u \u01b0u \u0111i\u1ec3m nh\u01b0 ch\u00fang ta \u0111\u00e3 th\u1ea5y \u1edf ph\u1ea7n tr\u01b0\u1edbc nh\u01b0ng c\u0169ng c\u00f3 nhi\u1ec1u nh\u01b0\u1ee3c \u0111i\u1ec3m m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 mu\u1ed1n bi\u1ebft tr\u01b0\u1edbc khi b\u1eaft tay v\u00e0o ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Kotlin. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 5 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Kotlin:<\/span><\/p>\n<h3><b>Ch\u01b0a ho\u00e0n ch\u1ec9nh b\u1eb1ng Java<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1ed9t trong nh\u1eefng h\u1ea1n ch\u1ebf l\u1edbn nh\u1ea5t khi b\u1eaft \u0111\u1ea7u v\u1edbi Kotlin l\u00e0 n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ho\u00e0n thi\u1ec7n nh\u01b0 Java. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 c\u00f3 th\u1ec3 c\u00f3 r\u1ea5t nhi\u1ec1u bug v\u00e0 nh\u1eefng thay \u0111\u1ed5i l\u1edbn x\u1ea3y ra sau m\u1ed7i b\u1ea3n c\u1eadp nh\u1eadt.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1eb7c d\u00f9 c\u00f3 m\u1ed9t c\u1ed9ng \u0111\u1ed3ng l\u1edbn xung quanh ng\u00f4n ng\u1eef n\u00e0y, nh\u01b0ng n\u1ebfu b\u1ea1n g\u1eb7p ph\u1ea3i m\u1ed9t s\u1ed1 bug hi\u1ebfm g\u1eb7p, b\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n trong \u0111\u00f3 m\u00e0 kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c c\u00e2u tr\u1ea3 bug trong m\u1ed9t th\u1eddi gian. M\u1eb7c d\u00f9 c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh nh\u01b0 Java \u0111\u00e3 t\u1ed3n t\u1ea1i h\u00e0ng th\u1eadp k\u1ef7 nh\u01b0ng r\u1ea5t d\u1ec5 d\u00e0ng nh\u1eadn \u0111\u01b0\u1ee3c c\u00e2u tr\u1ea3 bug cho h\u1ea7u h\u1ebft m\u1ecdi bug m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i.<\/span><\/p>\n<h3><b>Ch\u1eadm h\u01a1n m\u1ed9t ch\u00fat<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin nhanh trong nhi\u1ec1u l\u0129nh v\u1ef1c, ch\u1eb3ng h\u1ea1n nh\u01b0 th\u1ef1c hi\u1ec7n c\u00e1c b\u1ea3n d\u1ef1ng t\u0103ng d\u1ea7n. Tuy nhi\u00ean, khi n\u00f3i \u0111\u1ebfn s\u1ee9c m\u1ea1nh th\u00f4 trong vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c \u1ee9ng d\u1ee5ng Android s\u1ea1ch, Java v\u1eabn l\u00e0 ng\u01b0\u1eddi chi\u1ebfn th\u1eafng. L\u00fd do r\u1ea5t r\u00f5 r\u00e0ng, v\u00ec Kotlin \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean Java n\u00ean n\u00f3 s\u1ebd kh\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u01b0\u01a1ng t\u1ef1 do c\u01a1 s\u1edf code c\u01a1 b\u1ea3n ph\u1ea3i ch\u1ea1y tr\u00ean ng\u00f4n ng\u1eef Java c\u01a1 b\u1ea3n.\u00a0<\/span><\/p>\n<h3><b>R\u1ea5t \u00edt l\u1eadp tr\u00ecnh vi\u00ean Kotlin nhi\u1ec1u kinh nghi\u1ec7m<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">V\u00ec Kotlin m\u1edbi \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n g\u1ea7n \u0111\u00e2y v\u00e0 ch\u01b0a ho\u00e0n thi\u1ec7n nh\u01b0 Java nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp tr\u01b0\u1edbc \u0111\u00f3 n\u00ean s\u1ed1 l\u01b0\u1ee3ng l\u1eadp tr\u00ecnh vi\u00ean th\u00e0nh th\u1ea1o Kotlin c\u0169ng kh\u00f4ng l\u1edbn. N\u1ebfu b\u1ea1n l\u00e0 m\u1ed9t c\u00f4ng ty l\u1edbn v\u00e0 c\u00f3 \u00fd \u0111\u1ecbnh thu\u00ea l\u1eadp tr\u00ecnh vi\u00ean Kotlin c\u00e0ng s\u1edbm c\u00e0ng t\u1ed1t, \u0111\u1eb7c bi\u1ec7t n\u1ebfu s\u1ed1 l\u01b0\u1ee3ng cao, b\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n khi t\u00ecm \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh vi\u00ean Kotlin c\u00f3 kinh nghi\u1ec7m.<\/span><\/p>\n<h3><b>Kh\u00f3 t\u00ecm t\u00e0i li\u1ec7u h\u1ecdc Kotlin ph\u00f9 h\u1ee3p<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Khi n\u00f3i r\u1eb1ng vi\u1ec7c h\u1ecdc Kotlin c\u00f3 th\u1ec3 kh\u00f3, vi\u1ec7c kh\u00f3 \u1edf \u0111\u00e2y t\u00ecm t\u00e0i li\u1ec7u h\u1ecdc t\u1eadp ph\u00f9 h\u1ee3p. Khi b\u1ea1n c\u00f3 t\u00e0i li\u1ec7u h\u1ecdc t\u1eadp \u0111\u01b0\u1ee3c bi\u00ean so\u1ea1n c\u1ea9n th\u1eadn b\u1edfi c\u00e1c chuy\u00ean gia gi\u00e0u kinh nghi\u1ec7m, vi\u1ec7c h\u1ecdc b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec c\u00f3 th\u1ec3 c\u1ef1c k\u1ef3 d\u1ec5 d\u00e0ng.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u00ec Kotlin l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1 m\u1edbi n\u00ean s\u1ed1 l\u01b0\u1ee3ng t\u00e0i nguy\u00ean c\u00f3 s\u1eb5n m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o l\u00e0 r\u1ea5t \u00edt. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n s\u1ebd ph\u1ea3i d\u00e0nh nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 t\u00ecm ra c\u00e1ch th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 vi\u1ec7c nh\u1ea5t \u0111\u1ecbnh trong Kotlin, ngay c\u1ea3 khi c\u00f3 c\u00e1c l\u1ef1a ch\u1ecdn thay th\u1ebf Java c\u00f3 s\u1eb5n \u1edf kh\u1eafp m\u1ecdi n\u01a1i tr\u00ean internet.<\/span><\/p>\n<blockquote><p>Tham kh\u1ea3o: <a href=\"https:\/\/itviec.com\/blog\/tai-lieu-lap-trinh-android\/\" target=\"_blank\" rel=\"noopener\">17 t\u00e0i li\u1ec7u l\u1eadp tr\u00ecnh Android mi\u1ec5n ph\u00ed ch\u1ea5t nh\u1ea5t<\/a><\/p><\/blockquote>\n<h3><b>B\u1ea1n v\u1eabn c\u1ea7n Java<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1eb7c d\u00f9 b\u1ea1n d\u1ef1 \u0111\u1ecbnh l\u1eadp tr\u00ecnh ho\u00e0n to\u00e0n \u1ee9ng d\u1ee5ng c\u1ee7a m\u00ecnh b\u1eb1ng Kotlin, nh\u01b0ng b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 mu\u1ed1n s\u1eed d\u1ee5ng Java cho m\u1ed9t s\u1ed1 m\u1ee5c \u0111\u00edch nh\u1ea5t \u0111\u1ecbnh. V\u00ec ng\u00f4n ng\u1eef ch\u01b0a \u0111\u1ee7 ho\u00e0n ch\u1ec9nh \u0111\u1ec3 cung c\u1ea5p m\u1ecdi ch\u1ee9c n\u0103ng \u0111\u01a1n l\u1ebb m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 truy c\u1eadp c\u00e1c ch\u1ee9c n\u0103ng n\u00e2ng cao c\u1ee7a ph\u1ea7n c\u1ee9ng, n\u00ean b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 mu\u1ed1n s\u1eed d\u1ee5ng Java \u0111\u1ec3 l\u00e0m cho nh\u1eefng th\u1ee9 \u0111\u00f3 ho\u1ea1t \u0111\u1ed9ng. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1eb7c d\u00f9 n\u00f3 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m ho\u00e0n to\u00e0n, b\u1edfi v\u00ec Kotlin c\u00f3 th\u1ec3 bu\u1ed9c b\u1ea1n ph\u1ea3i h\u1ecdc Java, nh\u01b0ng v\u1eabn c\u00f3 m\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m. Ch\u00fang ta kh\u00f4ng n\u00ean qu\u00ean r\u1eb1ng Java c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nhung_cau_hoi_ve_Kotlin_thuong_gap\"><\/span><b>Nh\u1eefng c\u00e2u h\u1ecfi v\u1ec1 Kotlin th\u01b0\u1eddng g\u1eb7p<\/b><b><\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>Kotlin c\u00f3 d\u1ec5 h\u1ecdc kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00f3, Kotlin th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 d\u1ec5 h\u1ecdc. N\u00f3 c\u00f3 c\u00fa ph\u00e1p ng\u1eafn g\u1ecdn, c\u00e1c t\u00ednh n\u0103ng hi\u1ec7n \u0111\u1ea1i v\u00e0 c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi Java, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/span><\/p>\n<h3><b>Java hay Kotlin d\u1ec5 h\u1ecdc h\u01a1n?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 d\u1ec5 d\u00e0ng h\u01a1n nh\u1edd c\u00fa ph\u00e1p ng\u1eafn g\u1ecdn, t\u00ednh n\u0103ng hi\u1ec7n \u0111\u1ea1i v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c li\u1ec1n m\u1ea1ch v\u1edbi Java. Tuy nhi\u00ean, m\u1ee9c \u0111\u1ed9 d\u1ec5 h\u1ecdc c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o s\u1edf th\u00edch c\u00e1 nh\u00e2n v\u00e0 kinh nghi\u1ec7m tr\u01b0\u1edbc \u0111\u00f3.<\/span><\/p>\n<h3><b>Kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n c\u1ee7a Kotlin l\u00e0 g\u00ec?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Kotlin l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh c\u00f3 m\u1ee5c \u0111\u00edch chung, \u0111\u01b0\u1ee3c g\u00f5 t\u0129nh v\u1edbi kh\u1ea3 n\u0103ng suy lu\u1eadn ki\u1ec3u. N\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u01b0\u01a1ng t\u00e1c ho\u00e0n to\u00e0n v\u1edbi Java v\u00e0 m\u00e3 byte JVM do Kotlin t\u1ea1o ra t\u01b0\u01a1ng th\u00edch 100% v\u1edbi code byte Java.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kotlin l\u00e0 ng\u00f4n ng\u1eef c\u00f3 \u0111\u1ea7y \u0111\u1ee7 t\u00ednh n\u0103ng h\u1ed7 tr\u1ee3 l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, l\u1eadp tr\u00ecnh h\u00e0m v\u00e0 si\u00eau l\u1eadp tr\u00ecnh.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tong_ket_Kotlin_la_gi\"><\/span><b>T\u1ed5ng k\u1ebft Kotlin l\u00e0 g\u00ec<\/b><b><\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">T\u00f3m l\u1ea1i, <strong>Kotlin cung c\u1ea5p tr\u1ea3i nghi\u1ec7m l\u1eadp tr\u00ecnh ng\u1eafn g\u1ecdn v\u00e0 linh ho\u1ea1t, ph\u00f9 h\u1ee3p cho c\u1ea3 ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u c\u0169ng nh\u01b0 l\u1eadp tr\u00ecnh vi\u00ean c\u00f3 kinh nghi\u1ec7m<\/strong>. T\u00ednh d\u1ec5 \u0111\u1ecdc v\u00e0 c\u00e1c t\u00ednh n\u0103ng hi\u1ec7n \u0111\u1ea1i khi\u1ebfn Kotlin tr\u1edf th\u00e0nh s\u1ef1 l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi cho nhi\u1ec1u d\u1ef1 \u00e1n kh\u00e1c nhau, t\u1eeb ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng Android cho \u0111\u1ebfn c\u00e1c d\u1ef1 \u00e1n ph\u1ea7n m\u1ec1m kh\u00e1c.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hi\u1ec3u Kotlin l\u00e0 g\u00ec, k\u1ebft h\u1ee3p v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng Kotlin thu\u1ea7n th\u1ef1c s\u1ebd gi\u00fap ban h\u1ee3p l\u00fd h\u00f3a quy tr\u00ecnh m\u00e3 h\u00f3a v\u00e0 khai th\u00e1c ti\u1ec1m n\u0103ng bi\u1ebfn \u00fd t\u01b0\u1edfng th\u00e0nh hi\u1ec7n th\u1ef1c m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Khi b\u1ea1n kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi l\u1eadp tr\u00ecnh kh\u00f4ng ng\u1eebng ph\u00e1t tri\u1ec3n, h\u00e3y gi\u1eef Kotlin trong b\u1ed9 c\u00f4ng c\u1ee5 c\u1ee7a b\u1ea1n nh\u01b0 m\u1ed9t t\u00e0i s\u1ea3n qu\u00fd gi\u00e1. Kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng v\u00e0 t\u01b0\u01a1ng th\u00edch v\u1edbi Java c\u1ee7a n\u00f3 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i su\u00f4n s\u1ebb, cho ph\u00e9p b\u1ea1n lu\u00f4n d\u1eabn \u0111\u1ea7u trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m hi\u1ec7n \u0111\u1ea1i trong khi v\u1eabn duy tr\u00ec t\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a code.<\/span><\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" class=\"sp-no-webp wp-image-5668 aligncenter sp-no-webp entered lazyloaded\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-200x200.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-60x60.png 60w\" alt=\"robby-2\" width=\"300\" height=\"300\" data-lazy-src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png\" data-lazy-sizes=\"(max-width: 300px) 100vw, 300px\" data-lazy-srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-200x200.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-60x60.png 60w\" data-ll-status=\"loaded\" \/><\/figure>\n<\/div>\n<p id=\"block-bdf220a1-3635-4794-9101-81d879939b92\" class=\"has-text-align-center\" style=\"text-align: center;\"><strong>B\u1ea1n th\u1ea5y b\u00e0i vi\u1ebft hay v\u00e0 h\u1eefu \u00edch? \u0110\u1eebng ng\u1ea1i Share v\u1edbi b\u1ea1n b\u00e8 v\u00e0 \u0111\u1ed3ng nghi\u1ec7p nh\u00e9.<\/strong><\/p>\n<p id=\"block-a1315aab-406f-48df-97fc-6b9584e6e134\" class=\"has-text-align-center\" style=\"text-align: center;\"><strong>V\u00e0 nhanh tay tham kh\u1ea3o\u00a0<a href=\"http:\/\/itviec.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">vi\u1ec7c l\u00e0m IT<\/a>\u00a0\u201cch\u1ea5t\u201d tr\u00ean ITviec<\/strong>!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u1ed5i l\u00ean t\u1eeb n\u0103m 2017, khi l\u00e0 m\u1ed9t trong nh\u1eefng ng\u00f4n ng\u1eef d\u00f9ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m cho h\u1ec7 \u0111i\u1ec1u h\u00e0nh Android, Kotlin ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn v\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi nh\u1eefng l\u1eadp tr\u00ecnh vi\u00ean hi\u1ec7n nay. H\u00e3y c\u00f9ng ITviec t\u00ecm hi\u1ec3u t\u1ed5ng quan v\u1ec1 Kotlin l\u00e0 g\u00ec qua b\u00e0i vi\u1ebft sau \u0111\u00e2y [&hellip;]<\/p>\n","protected":false},"author":114,"featured_media":41276,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[109],"tags":[],"class_list":["post-41210","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chuyen-mon-it"],"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>Kotlin l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a, \u01b0u \u0111i\u1ec3m v\u00e0 c\u00e1c c\u00fa ph\u00e1p c\u01a1 b\u1ea3n - ITviec Blog<\/title>\n<meta name=\"description\" content=\"Kotlin l\u00e0 g\u00ec m\u00e0 \u0111\u01b0\u1ee3c xem l\u00e0 &quot;ng\u00f4n ng\u1eef t\u1ed1t h\u01a1n Java&quot;, v\u00e0 t\u1eebng \u0111\u01b0\u1ee3c Google ch\u1ecdn l\u00e0 ng\u00f4n ng\u1eef ch\u00ednh th\u1ee9c \u0111\u1ec3 ph\u00e1t tri\u1ec3n Android? 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