{"id":19720,"date":"2020-12-18T10:00:23","date_gmt":"2020-12-18T03:00:23","guid":{"rendered":"https:\/\/itviec.com\/blog\/?p=19720"},"modified":"2024-09-28T21:46:29","modified_gmt":"2024-09-28T14:46:29","slug":"oop-la-gi","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/oop-la-gi\/","title":{"rendered":"OOP l\u00e0 g\u00ec? 4 \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a OOP"},"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\/oop-la-gi\/#Lap_trinh_huong_doi_tuong_OOP_la_gi_OOP_duoc_dung_de_lam_gi\" >L\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OOP) l\u00e0 g\u00ec? OOP \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u00e0m 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\/oop-la-gi\/#Doi_tuong_Object_va_Lop_Class_trong_OOP_la_gi\" >\u0110\u1ed1i t\u01b0\u1ee3ng (Object) v\u00e0 L\u1edbp (Class) trong OOP 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\/oop-la-gi\/#Uu_diem_cua_lap_trinh_huong_doi_tuong_OOP\" >\u01afu \u0111i\u1ec3m c\u1ee7a l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng OOP<\/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\/oop-la-gi\/#4_dac_tinh_co_ban_cua_OOP\" >4 \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a OOP<\/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\/oop-la-gi\/#Nhung_ngon_ngu_OOP_pho_bien_nhat\" >Nh\u1eefng ng\u00f4n ng\u1eef OOP ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/a><\/li><\/ul><\/nav><\/div>\n\r\n<p><strong><em>OOP (vi\u1ebft t\u1eaft c\u1ee7a Object Oriented Programming) &#8211; l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p l\u1eadp tr\u00ecnh d\u1ef1a tr\u00ean kh\u00e1i ni\u1ec7m v\u1ec1 l\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng. OOP t\u1eadp trung v\u00e0o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng thao t\u00e1c h\u01a1n l\u00e0 logic \u0111\u1ec3 thao t\u00e1c ch\u00fang, gi\u00fap code d\u1ec5 qu\u1ea3n l\u00fd, t\u00e1i s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec.<\/em><\/strong><\/p>\r\n\r\n\r\n\r\n<p>B\u1ea5t k\u1ef3 developer n\u00e0o mu\u1ed1n \u0111i tr\u00ean con \u0111\u01b0\u1eddng l\u1eadp tr\u00ecnh c\u0169ng \u0111\u1ec1u ph\u1ea3i bi\u1ebft v\u1ec1 OOP.<\/p>\r\n\r\n\r\n\r\n<p>\u0110\u1ecdc b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 bi\u1ebft:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>OOP l\u00e0 g\u00ec? \u0110\u1ed1i t\u01b0\u1ee3ng v\u00e0 l\u1edbp trong OOP l\u00e0 g\u00ec?<\/li>\r\n<li>C\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a OOP l\u00e0 g\u00ec?<\/li>\r\n<li>C\u00e1c ng\u00f4n ng\u1eef OOP ph\u1ed5 bi\u1ebfn v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<blockquote>\r\n<p><strong>Tham kh\u1ea3o <a href=\"https:\/\/itviec.com\/it-jobs\/oop-developer?utm_medium=anchor_text_high&amp;utm_source=blog&amp;utm_campaign=viec_lam_oop_developer&amp;utm_content=oop_la_gi\" target=\"_blank\" rel=\"noopener\">vi\u1ec7c l\u00e0m OOP Developer<\/a> tr\u00ean ITviec<\/strong><\/p>\r\n<\/blockquote>\r\n\r\n\r\n\r\n<p><!--more--><\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lap_trinh_huong_doi_tuong_OOP_la_gi_OOP_duoc_dung_de_lam_gi\"><\/span><strong>L\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OOP) l\u00e0 g\u00ec? OOP \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<p>OOP (vi\u1ebft t\u1eaft c\u1ee7a Object Oriented Programming) &#8211; l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p l\u1eadp tr\u00ecnh d\u1ef1a tr\u00ean kh\u00e1i ni\u1ec7m v\u1ec1 l\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng. OOP t\u1eadp trung v\u00e0o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng thao t\u00e1c h\u01a1n l\u00e0 logic \u0111\u1ec3 thao t\u00e1c ch\u00fang.<\/p>\r\n\r\n\r\n\r\n<p>OOP l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a c\u00e1c design pattern hi\u1ec7n nay.<\/p>\r\n\r\n\r\n\r\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\r\n<p>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/design-pattern\/\" target=\"_blank\" rel=\"noreferrer noopener\">Design pattern l\u00e0 g\u00ec? V\u00ec sao n\u00ean h\u1ecdc design pattern?<\/a><\/p>\r\n<\/blockquote>\r\n\r\n\r\n\r\n<p>M\u1ee5c ti\u00eau c\u1ee7a OOP l\u00e0 t\u1ed1i \u01b0u vi\u1ec7c qu\u1ea3n l\u00fd source code, gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng t\u00e1i s\u1eed d\u1ee5ng v\u00e0 quan tr\u1ecdng h\u01a1n h\u1ebft l\u00e0 gi\u00fap t\u00f3m g\u1ecdn c\u00e1c th\u1ee7 t\u1ee5c \u0111\u00e3 bi\u1ebft tr\u01b0\u1edbc t\u00ednh ch\u1ea5t th\u00f4ng qua vi\u1ec7c\u00a0s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Doi_tuong_Object_va_Lop_Class_trong_OOP_la_gi\"><\/span><strong>\u0110\u1ed1i t\u01b0\u1ee3ng (Object) v\u00e0 L\u1edbp (Class) trong OOP l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>\u0110\u1ed1i t\u01b0\u1ee3ng (Object)<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>\u0110\u1ed1i t\u01b0\u1ee3ng trong OOP bao g\u1ed3m 2 th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Thu\u1ed9c t\u00ednh (Attribute): l\u00e0 nh\u1eefng th\u00f4ng tin, \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng<\/li>\r\n<li>Ph\u01b0\u01a1ng th\u1ee9c (Method): l\u00e0 nh\u1eefng h\u00e0nh vi m\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>\u0110\u1ec3 d\u1ec5 h\u00ecnh dung, ta c\u00f3 m\u1ed9t v\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u1ec1 \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 smartphone. \u0110\u1ed1i t\u01b0\u1ee3ng n\u00e0y s\u1ebd c\u00f3:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Thu\u1ed9c t\u00ednh: m\u00e0u s\u1eafc, b\u1ed9 nh\u1edb, h\u1ec7 \u0111i\u1ec1u h\u00e0nh&#8230;<\/li>\r\n<li>Ph\u01b0\u01a1ng th\u1ee9c: g\u1ecdi \u0111i\u1ec7n, ch\u1ee5p \u1ea3nh, nh\u1eafn tin, ghi \u00e2m&#8230;<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>L\u1edbp (Class)<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>L\u1edbp l\u00e0 s\u1ef1 tr\u1eebu t\u01b0\u1ee3ng h\u00f3a c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. Nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 nh\u1eefng \u0111\u1eb7c t\u00ednh t\u01b0\u01a1ng t\u1ef1 nhau s\u1ebd \u0111\u01b0\u1ee3c t\u1eadp h\u1ee3p th\u00e0nh m\u1ed9t l\u1edbp. L\u1edbp c\u0169ng s\u1ebd bao g\u1ed3m 2 th\u00f4ng tin l\u00e0 thu\u1ed9c t\u00ednh v\u00e0 ph\u01b0\u01a1ng th\u1ee9c.<\/p>\r\n\r\n\r\n\r\n<p>M\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng s\u1ebd \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 c\u1ee7a l\u1edbp.<\/p>\r\n\r\n\r\n\r\n<p>Ti\u1ebfp n\u1ed1i v\u00ed d\u1ee5 \u1edf ph\u1ea7n \u0111\u1ed1i t\u01b0\u1ee3ng (object) ph\u00eda tr\u00ean, ta c\u00f3 l\u1edbp (class) smartphone g\u1ed3m 2 th\u00e0nh ph\u1ea7n:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Thu\u1ed9c t\u00ednh: m\u00e0u s\u1eafc, b\u1ed9 nh\u1edb, h\u1ec7 \u0111i\u1ec1u h\u00e0nh&#8230;<\/li>\r\n<li>Ph\u01b0\u01a1ng th\u1ee9c: g\u1ecdi \u0111i\u1ec7n, ch\u1ee5p \u1ea3nh, nh\u1eafn tin, ghi \u00e2m&#8230;<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a l\u1edbp n\u00e0y c\u00f3 th\u1ec3 l\u00e0: iPhone, Samsung, Oppo, Huawei&#8230;<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Uu_diem_cua_lap_trinh_huong_doi_tuong_OOP\"><\/span><strong>\u01afu \u0111i\u1ec3m c\u1ee7a l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng OOP<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>OOP m\u00f4 h\u00ecnh h\u00f3a nh\u1eefng th\u1ee9 ph\u1ee9c t\u1ea1p d\u01b0\u1edbi d\u1ea1ng c\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n.<\/li>\r\n<li>Code OOP c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng l\u1ea1i, gi\u00fap ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean.<\/li>\r\n<li>Gi\u00fap s\u1eeda l\u1ed7i d\u1ec5 d\u00e0ng h\u01a1n. So v\u1edbi vi\u1ec7c t\u00ecm l\u1ed7i \u1edf nhi\u1ec1u v\u1ecb tr\u00ed trong code th\u00ec t\u00ecm l\u1ed7i trong c\u00e1c l\u1edbp (\u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac t\u1eeb tr\u01b0\u1edbc) \u0111\u01a1n gi\u1ea3n v\u00e0 \u00edt m\u1ea5t th\u1eddi gian h\u01a1n.<\/li>\r\n<li>C\u00f3 t\u00ednh b\u1ea3o m\u1eadt cao, b\u1ea3o v\u1ec7 th\u00f4ng tin th\u00f4ng qua \u0111\u00f3ng g\u00f3i.<\/li>\r\n<li>D\u1ec5 m\u1edf r\u1ed9ng d\u1ef1 \u00e1n.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_dac_tinh_co_ban_cua_OOP\"><\/span><strong>4 \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a OOP<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>T\u00ednh \u0111\u00f3ng g\u00f3i (Encapsulation)<\/strong><\/h3>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"513\" height=\"321\" class=\"wp-image-19733\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-1.jpg\" alt=\"\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-1.jpg 513w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-1-300x188.jpg 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-1-200x125.jpg 200w\" sizes=\"auto, (max-width: 513px) 100vw, 513px\" \/><\/figure>\r\n\r\n\r\n\r\n<p>T\u00ednh \u0111\u00f3ng g\u00f3i cho ph\u00e9p che gi\u1ea5u th\u00f4ng tin v\u00e0 nh\u1eefng t\u00ednh ch\u1ea5t x\u1eed l\u00fd b\u00ean trong c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c kh\u00f4ng th\u1ec3 t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn d\u1eef li\u1ec7u b\u00ean trong v\u00e0 l\u00e0m thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng m\u00e0 b\u1eaft bu\u1ed9c ph\u1ea3i th\u00f4ng qua c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u00f4ng khai do \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3 cung c\u1ea5p.<\/p>\r\n\r\n\r\n\r\n<p>T\u00ednh ch\u1ea5t n\u00e0y gi\u00fap t\u0103ng t\u00ednh b\u1ea3o m\u1eadt cho \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 tr\u00e1nh t\u00ecnh tr\u1ea1ng d\u1eef li\u1ec7u b\u1ecb h\u01b0 h\u1ecfng ngo\u00e0i \u00fd mu\u1ed1n.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>T\u00ednh k\u1ebf th\u1eeba (Inheritance)<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>\u0110\u00e2y l\u00e0 t\u00ednh ch\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng kh\u00e1 nhi\u1ec1u. T\u00ednh k\u1ebf th\u1eeba cho ph\u00e9p x\u00e2y d\u1ef1ng m\u1ed9t l\u1edbp m\u1edbi (l\u1edbp Con), k\u1ebf th\u1eeba v\u00e0 t\u00e1i s\u1eed d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh, ph\u01b0\u01a1ng th\u1ee9c d\u1ef1a tr\u00ean l\u1edbp c\u0169 (l\u1edbp Cha) \u0111\u00e3 c\u00f3 tr\u01b0\u1edbc \u0111\u00f3.\u00a0<\/p>\r\n\r\n\r\n\r\n<p>C\u00e1c l\u1edbp Con k\u1ebf th\u1eeba to\u00e0n b\u1ed9 th\u00e0nh ph\u1ea7n c\u1ee7a l\u1edbp Cha v\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i \u0111\u1ecbnh ngh\u0129a l\u1ea1i. L\u1edbp Con c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng c\u00e1c th\u00e0nh ph\u1ea7n k\u1ebf th\u1eeba ho\u1eb7c b\u1ed5 sung nh\u1eefng th\u00e0nh ph\u1ea7n m\u1edbi.<\/p>\r\n\r\n\r\n\r\n<p>V\u00ed d\u1ee5:\u00a0<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>L\u1edbp Cha l\u00e0 smartphone, c\u00f3 c\u00e1c thu\u1ed9c t\u00ednh: m\u00e0u s\u1eafc, b\u1ed9 nh\u1edb, h\u1ec7 \u0111i\u1ec1u h\u00e0nh&#8230;<\/li>\r\n<li>C\u00e1c l\u1edbp Con l\u00e0 iPhone, Samsung, Oppo c\u0169ng c\u00f3 c\u00e1c thu\u1ed9c t\u00ednh: m\u00e0u s\u1eafc, b\u1ed9 nh\u1edb, h\u1ec7 \u0111i\u1ec1u h\u00e0nh&#8230;<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>T\u00ednh \u0111a h\u00ecnh (Polymorphism)<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>T\u00ednh \u0111a h\u00ecnh trong l\u1eadp tr\u00ecnh OOP cho ph\u00e9p c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c nhau th\u1ef1c thi ch\u1ee9c n\u0103ng gi\u1ed1ng nhau theo nh\u1eefng c\u00e1ch kh\u00e1c nhau.<\/p>\r\n\r\n\r\n\r\n<p>V\u00ed d\u1ee5:\u00a0<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>\u1ede l\u1edbp smartphone, m\u1ed7i m\u1ed9t d\u00f2ng m\u00e1y \u0111\u1ec1u k\u1ebf th\u1eeba c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a l\u1edbp cha nh\u01b0ng iPhone ch\u1ea1y tr\u00ean h\u1ec7 \u0111i\u1ec1u h\u00e0nh iOS, c\u00f2n Samsung l\u1ea1i ch\u1ea1y tr\u00ean h\u1ec7 \u0111i\u1ec1u h\u00e0nh Android.<\/li>\r\n<li>Ch\u00f3 v\u00e0 m\u00e8o c\u00f9ng nghe m\u1ec7nh l\u1ec7nh \u201ck\u00eau \u0111i\u201d t\u1eeb ng\u01b0\u1eddi ch\u1ee7. Ch\u00f3 s\u1ebd \u201cg\u00e2u g\u00e2u\u201d c\u00f2n m\u00e8o l\u1ea1i k\u00eau \u201cmeo meo\u201d.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"638\" height=\"359\" class=\"wp-image-19734\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-2.jpeg\" alt=\"\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-2.jpeg 638w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-2-300x169.jpeg 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-2-200x113.jpeg 200w\" sizes=\"auto, (max-width: 638px) 100vw, 638px\" \/><\/figure>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>T\u00ednh tr\u1eebu t\u01b0\u1ee3ng (Abstraction)<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>T\u00ednh tr\u1eebu t\u01b0\u1ee3ng gi\u00fap lo\u1ea1i b\u1ecf nh\u1eefng th\u1ee9 ph\u1ee9c t\u1ea1p, kh\u00f4ng c\u1ea7n thi\u1ebft c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 ch\u1ec9 t\u1eadp trung v\u00e0o nh\u1eefng g\u00ec c\u1ed1t l\u00f5i, quan tr\u1ecdng.<\/p>\r\n\r\n\r\n\r\n<p>V\u00ed d\u1ee5: Qu\u1ea3n l\u00fd nh\u00e2n vi\u00ean th\u00ec ch\u1ec9 c\u1ea7n quan t\u00e2m \u0111\u1ebfn nh\u1eefng th\u00f4ng tin nh\u01b0:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>H\u1ecd t\u00ean<\/li>\r\n<li>Ng\u00e0y sinh<\/li>\r\n<li>Gi\u1edbi t\u00ednh<\/li>\r\n<li>\u2026<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Ch\u1ee9 kh\u00f4ng c\u1ea7n ph\u1ea3i qu\u1ea3n l\u00fd th\u00eam th\u00f4ng tin v\u1ec1:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>Chi\u1ec1u cao<\/li>\r\n<li>C\u00e2n n\u1eb7ng<\/li>\r\n<li>S\u1edf th\u00edch<\/li>\r\n<li>M\u00e0u da<\/li>\r\n<li>&#8230;<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Nhung_ngon_ngu_OOP_pho_bien_nhat\"><\/span><strong>Nh\u1eefng ng\u00f4n ng\u1eef OOP ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>Java<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>Java l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OOP), \u0111a m\u1ee5c \u0111\u00edch v\u00e0 \u0111\u1ed9c l\u1eadp n\u1ec1n t\u1ea3ng. Thay v\u00ec bi\u00ean d\u1ecbch m\u00e3 ngu\u1ed3n th\u00e0nh m\u00e3 m\u00e1y tr\u00ean n\u1ec1n t\u1ea3ng c\u1ee5 th\u1ec3, code Java \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch th\u00e0nh bytecode &#8211; m\u1ed9t \u0111\u1ecbnh d\u1ea1ng trung gian. Bytecode sau \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c ch\u1ea1y b\u1edfi m\u00f4i tr\u01b0\u1eddng th\u1ef1c thi (runtime environment).<\/p>\r\n\r\n\r\n\r\n<p>Code Java &#8220;vi\u1ebft m\u1ed9t l\u1ea7n, ch\u1ea1y m\u1ecdi n\u01a1i&#8221; n\u00ean kh\u00e1 l\u00fd t\u01b0\u1edfng cho nh\u1eefng ng\u01b0\u1eddi m\u1edbi t\u00ecm hi\u1ec3u.<\/p>\r\n\r\n\r\n\r\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\r\n<p>Tham kh\u1ea3o: <a href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-java\/\" target=\"_blank\" rel=\"noreferrer noopener\">12 t\u00e0i li\u1ec7u h\u1ecdc l\u1eadp tr\u00ecnh Java ch\u1ecdn l\u1ecdc<\/a><\/p>\r\n<\/blockquote>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>C++<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>L\u00e0 m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Bjarne Stroustrup nh\u01b0ng C++ mang c\u1ea3 2 phong c\u00e1ch: l\u1eadp tr\u00ecnh h\u01b0\u1edbng c\u1ea5u tr\u00fac gi\u1ed1ng C v\u00e0 c\u00f3 th\u00eam phong c\u00e1ch h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. N\u1ebfu \u0111\u00e3 quen v\u1edbi l\u1eadp tr\u00ecnh h\u01b0\u1edbng c\u1ea5u tr\u00fac tr\u01b0\u1edbc \u0111\u00f3 th\u00ec vi\u1ec7c h\u1ecdc C++ kh\u00f4ng ph\u1ea3i l\u00e0 \u0111i\u1ec1u qu\u00e1 kh\u00f3 kh\u0103n.<\/p>\r\n<p>\u0110\u1ecdc ngay c\u00e1c b\u00e0i vi\u1ebft thu\u1ed9c ch\u1ee7 \u0111\u1ec1 C++:<\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/cpp-la-gi\/\" target=\"_blank\" rel=\"noopener\">C++ l\u00e0 g\u00ec: T\u1ed5ng quan v\u1ec1 C++ v\u00e0 Nh\u1eefng c\u00e2u h\u1ecfi C++ th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/lo-trinh-hoc-cpp\/\" target=\"_blank\" rel=\"noopener\">H\u1ecdc C++ d\u1ec5 d\u00e0ng v\u1edbi l\u1ed9 tr\u00ecnh v\u00e0 t\u00e0i li\u1ec7u to\u00e0n di\u1ec7n<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/cpp-ide\/\" target=\"_blank\" rel=\"noopener\">C++ IDE: T\u1ed5ng h\u1ee3p v\u00e0 So s\u00e1nh c\u00e1c IDE ph\u1ed5 bi\u1ebfn cho C++<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/chay-chuong-trinh-cpp\/\" target=\"_blank\" rel=\"noopener\">Ch\u1ea1y ch\u01b0\u01a1ng tr\u00ecnh C++: L\u01b0u \u00fd compile v\u00e0 debug ph\u1ea7n m\u1ec1m C++<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/lap-trinh-c\/\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00e0i li\u1ec7u h\u1ecdc C++ ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed<\/a><\/li>\r\n<\/ul>\r\n<blockquote>\r\n<p>Tham kh\u1ea3o <a href=\"https:\/\/itviec.com\/viec-lam-it\/c++?utm_medium=anchor_text_mid&amp;utm_source=blog&amp;utm_campaign=viec_lam_c++&amp;utm_content=oop_la_gi\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7c l\u00e0m C++<\/a> tr\u00ean ITviec<\/p>\r\n<\/blockquote>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>PHP<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>PHP l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111a m\u1ee5c \u0111\u00edch, \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u Developer s\u1eed d\u1ee5ng. \u0110\u00e2y l\u00e0 ng\u00f4n ng\u1eef k\u1ecbch b\u1ea3n m\u00e3 ngu\u1ed3n m\u1edf, ch\u1ea1y \u1edf ph\u00eda server v\u00e0 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u1ee9ng d\u1ee5ng web.<\/p>\r\n<p>T\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 ng\u00f4n ng\u1eef PHP qua c\u00e1c b\u00e0i vi\u1ebft sau:<\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/php-la-gi\/\" target=\"_blank\" rel=\"noopener\">PHP l\u00e0 g\u00ec: Chi ti\u1ebft v\u00e0 \u0111\u1ea7y \u0111\u1ee7 c\u00e1ch vi\u1ebft c\u00fa ph\u00e1p PHP c\u01a1 b\u1ea3n<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/lo-trinh-hoc-php\/\" target=\"_blank\" rel=\"noopener\">H\u1ecdc PHP c\u01a1 b\u1ea3n v\u1edbi l\u1ed9 tr\u00ecnh to\u00e0n di\u1ec7n 2024<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/php-mvc-la-gi\/\" target=\"_blank\" rel=\"noopener\">PHP MVC t\u1ed5ng quan: T\u1eeb nguy\u00ean l\u00fd \u0111\u1ebfn th\u1ef1c h\u00e0nh<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/11-sach-hoc-lap-trinh-php\/\" target=\"_blank\" rel=\"noreferrer noopener\">10+ s\u00e1ch l\u1eadp tr\u00ecnh PHP hay nh\u1ea5t m\u1ecdi c\u1ea5p \u0111\u1ed9<\/a><\/li>\r\n<\/ul>\r\n<blockquote>\r\n<p>Tham kh\u1ea3o <a href=\"https:\/\/itviec.com\/viec-lam-it\/php?utm_medium=anchor_text_mid&amp;utm_source=blog&amp;utm_campaign=viec_lam_php&amp;utm_content=oop_la_gi\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7c l\u00e0m PHP<\/a> tr\u00ean ITviec<\/p>\r\n<\/blockquote>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>JavaScript<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>JavaScript l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c website c\u00f3 t\u00ednh t\u01b0\u01a1ng t\u00e1c cao, v\u1edbi m\u1ee9c \u0111\u1ed9 ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng b\u1eadc nh\u1ea5t. H\u1ecdc JavaScript kh\u00e1 d\u1ec5 d\u00e0ng v\u00e0 \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p cho nh\u1eefng developer m\u1edbi b\u1eaft \u0111\u1ea7u h\u1ecdc l\u1eadp tr\u00ecnh.<\/p>\r\n<p>H\u1ecdc JavaScript \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 hi\u1ec3u nh\u1edd c\u00e1c t\u00e0i li\u1ec7u JavaScript chi ti\u1ebft sau:<\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/javascript-la-gi\/\" target=\"_blank\" rel=\"noopener\">JavaScript l\u00e0 g\u00ec? H\u1ecdc JavaScript c\u01a1 b\u1ea3n v\u1edbi l\u1ed9 tr\u00ecnh d\u1ec5 hi\u1ec3u nh\u1ea5t<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/tu-hoc-javascript\/\" target=\"_blank\" rel=\"noopener\">T\u1ef1 h\u1ecdc Javascript v\u1edbi 20+ t\u00e0i nguy\u00ean online c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/bai-tap-javascript-co-ban\/\" target=\"_blank\" rel=\"noopener\">B\u00e0i t\u1eadp JavaScript c\u01a1 b\u1ea3n k\u00e8m l\u1eddi gi\u1ea3i cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/array-javascript-la-gi\/\" target=\"_blank\" rel=\"noopener\">Array JavaScript: T\u1ed5ng h\u1ee3p 12 ph\u01b0\u01a1ng th\u1ee9c quan tr\u1ecdng c\u1ee7a array<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/vong-lap-trong-javascript\/\" target=\"_blank\" rel=\"noopener\">V\u00f2ng l\u1eb7p trong JavaScript: Chi ti\u1ebft 8 ph\u01b0\u01a1ng th\u1ee9c l\u1eb7p k\u00e8m v\u00ed d\u1ee5<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/foreach-javascript-la-gi\/\" target=\"_blank\" rel=\"noopener\">forEach JavaScript: M\u1ed9t s\u1ed1 thao t\u00e1c c\u01a1 b\u1ea3n v\u00e0 v\u00ed d\u1ee5 chi ti\u1ebft<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/khai-bao-bien-trong-javascript\/\" target=\"_blank\" rel=\"noopener\">Khai b\u00e1o bi\u1ebfn trong JavaScript: Chi ti\u1ebft c\u00e1c c\u00e1ch ph\u1ed5 bi\u1ebfn<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/tai-lieu-javascript\/\" target=\"_blank\" rel=\"noreferrer noopener\">20+ t\u00e0i li\u1ec7u h\u1ecdc JavaScript hay nh\u1ea5t hi\u1ec7n nay<\/a><\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\n\r\n<blockquote>\r\n<p>Tham kh\u1ea3o <a href=\"https:\/\/itviec.com\/viec-lam-it\/javascript?utm_medium=anchor_text_mid&amp;utm_source=blog&amp;utm_campaign=viec_lam_javascript&amp;utm_content=oop_la_gi\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7c l\u00e0m JavaScript<\/a> tr\u00ean ITviec<\/p>\r\n<\/blockquote>\r\n<h3 class=\"wp-block-heading\"><strong>Python<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>Python l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng b\u1eadc cao, d\u00f9ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n website v\u00e0 nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau. Python \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi Guido van Rossum v\u00e0 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n trong m\u1ed9t d\u1ef1 \u00e1n m\u00e3 m\u1edf (open source).<\/p>\r\n\r\n\r\n\r\n<p>V\u1edbi c\u00fa ph\u00e1p c\u1ef1c k\u00ec \u0111\u01a1n gi\u1ea3n v\u00e0 thanh l\u1ecbch, Python l\u00e0 l\u1ef1a ch\u1ecdn ho\u00e0n h\u1ea3o cho nh\u1eefng ai l\u1ea7n \u0111\u1ea7u ti\u00ean h\u1ecdc l\u1eadp tr\u00ecnh.<\/p>\r\n<p>H\u1ecdc Python \u0111\u01a1n gi\u1ea3n h\u01a1n v\u1edbi c\u00e1c b\u00e0i vi\u1ebft ch\u1ee7 \u0111\u1ec1 Python sau:<\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/python-la-gi\/\" target=\"_blank\" rel=\"noopener\">Python l\u00e0 g\u00ec: T\u1ed5ng quan \u0111\u1ecbnh ngh\u0129a, C\u00fa ph\u00e1p v\u00e0 Th\u01b0 vi\u1ec7n Python<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/code-python-co-ban\/\" target=\"_blank\" rel=\"noopener\">Code Python c\u01a1 b\u1ea3n: H\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1c l\u1ec7nh Python c\u01a1 b\u1ea3n<\/a><\/li>\r\n<li><a href=\"https:\/\/itviec.com\/blog\/tai-lieu-lap-trinh-python\/\" target=\"_blank\" rel=\"noreferrer noopener\">20 t\u00e0i li\u1ec7u l\u1eadp tr\u00ecnh Python t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao<\/a><\/li>\r\n<\/ul>\r\n<blockquote>\r\n<p>Tham kh\u1ea3o <a href=\"https:\/\/itviec.com\/viec-lam-it\/python?utm_medium=anchor_text_mid&amp;utm_source=blog&amp;utm_campaign=viec_lam_python&amp;utm_content=oop_la_gi\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7c l\u00e0m Python<\/a> tr\u00ean ITviec<\/p>\r\n<\/blockquote>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" class=\"wp-image-5668 aligncenter\" src=\"\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-200x200.png\" alt=\"Robby2\" srcset=\"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, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png 300w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p style=\"text-align: center;\"><strong>B\u1ea1n th\u1ea5y b\u00e0i vi\u1ebft hay v\u00e0 c\u1ea7n thi\u1ebft v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi? \u0110\u1eebng ng\u1ea1i nh\u1ea5n n\u00fat Share b\u00ean d\u01b0\u1edbi nh\u00e9.<\/strong><\/p>\r\n\r\n\r\n\r\n<p class=\"has-text-align-center\" style=\"text-align: center;\"><strong>V\u00e0 \u0111\u1eebng qu\u00ean tham kh\u1ea3o <a href=\"https:\/\/itviec.com\/it-jobs\/oop-developer?utm_medium=anchor_text_low&amp;utm_source=blog&amp;utm_campaign=viec_lam_oop_developer&amp;utm_content=oop_la_gi\" target=\"_blank\" rel=\"noopener\">vi\u1ec7c l\u00e0m OOP Developer<\/a> tr\u00ean ITviec.<\/strong><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>OOP (vi\u1ebft t\u1eaft c\u1ee7a Object Oriented Programming) &#8211; l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p l\u1eadp tr\u00ecnh d\u1ef1a tr\u00ean kh\u00e1i ni\u1ec7m v\u1ec1 l\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng. OOP t\u1eadp trung v\u00e0o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng thao t\u00e1c h\u01a1n l\u00e0 logic \u0111\u1ec3 thao t\u00e1c ch\u00fang, gi\u00fap code d\u1ec5 qu\u1ea3n l\u00fd, t\u00e1i s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c v\u00e0 d\u1ec5 [&hellip;]<\/p>\n","protected":false},"author":87,"featured_media":19729,"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-19720","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>OOP l\u00e0 g\u00ec? 4 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng<\/title>\n<meta name=\"description\" content=\"OOP (vi\u1ebft t\u1eaft c\u1ee7a Object Oriented Programming) - l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt l\u1eadp tr\u00ecnh gi\u00fap tr\u1eebu t\u01b0\u1ee3ng h\u00f3a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itviec.com\/blog\/oop-la-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OOP l\u00e0 g\u00ec? 4 \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a OOP\" \/>\n<meta property=\"og:description\" content=\"OOP (vi\u1ebft t\u1eaft c\u1ee7a Object Oriented Programming) - l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p l\u1eadp tr\u00ecnh d\u1ef1a tr\u00ean kh\u00e1i ni\u1ec7m v\u1ec1 l\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng. OOP t\u1eadp\" \/>\n<meta property=\"og:url\" content=\"https:\/\/itviec.com\/blog\/oop-la-gi\/\" \/>\n<meta property=\"og:site_name\" content=\"ITviec Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ITviec\" \/>\n<meta property=\"article:published_time\" content=\"2020-12-18T03:00:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-28T14:46:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2020\/09\/oop-la-gi-thumbnail.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"335\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Tinh To\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ITviec\" \/>\n<meta name=\"twitter:site\" content=\"@ITviec\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tinh To\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 ph\u00fat\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"OOP l\u00e0 g\u00ec? 4 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng","description":"OOP (vi\u1ebft t\u1eaft c\u1ee7a Object Oriented Programming) - l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt l\u1eadp tr\u00ecnh gi\u00fap tr\u1eebu t\u01b0\u1ee3ng h\u00f3a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/itviec.com\/blog\/oop-la-gi\/","og_locale":"vi_VN","og_type":"article","og_title":"OOP l\u00e0 g\u00ec? 4 \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a OOP","og_description":"OOP (vi\u1ebft t\u1eaft c\u1ee7a Object Oriented Programming) - l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p l\u1eadp tr\u00ecnh d\u1ef1a tr\u00ean kh\u00e1i ni\u1ec7m v\u1ec1 l\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng. 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