{"id":49900,"date":"2023-12-17T05:01:38","date_gmt":"2023-12-17T05:01:38","guid":{"rendered":"https:\/\/masterskills.org\/blog\/top-cau-hoi-phong-van-oop-hay-gap-nhat.html"},"modified":"2023-12-17T05:01:38","modified_gmt":"2023-12-17T05:01:38","slug":"top-cau-hoi-phong-van-oop-hay-gap-nhat","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/top-cau-hoi-phong-van-oop-hay-gap-nhat.html","title":{"rendered":"Top C\u00e2u H\u1ecfi Ph\u1ecfng V\u1ea5n OOP Hay G\u1eb7p Nh\u1ea5t\u00a0"},"content":{"rendered":"
\n

Object-Oriented Programming (OOP) \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. V\u00ec v\u1eady, vi\u1ec7c hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m c\u1ee7a n\u00f3 l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean tham v\u1ecdng. Trong b\u00e0i vi\u1ebft n\u00e0y, Masterskills s\u1ebd c\u00f9ng b\u1ea1n kh\u00e1m ph\u00e1 nh\u1eefng c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n OPP<\/strong> ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u00f9ng m\u1ed9t s\u1ed1 g\u1ee3i \u00fd tr\u1ea3 l\u1eddi c\u01a1 b\u1ea3n \u0111\u1ec3 gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 chu\u1ea9n b\u1ecb t\u1ed1t nh\u1ea5t cho cu\u1ed9c ph\u1ecfng v\u1ea5n ti\u1ebfp theo.<\/p>\n

C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n OOPs c\u01a1 b\u1ea3n\u00a0<\/strong><\/h2>\n

\u0110\u1ea7u ti\u00ean, h\u00e3y c\u00f9ng Masterskills \u0111i\u1ec3m qua m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n OOP<\/strong> c\u01a1 b\u1ea3n nh\u1ea5t:<\/p>\n

1. OOPs l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

OOP, vi\u1ebft t\u1eaft c\u1ee7a Object-Oriented Programming, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u1ecbch l\u00e0 l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. \u0110\u00e2y l\u00e0 m\u00f4 h\u00ecnh l\u1eadp tr\u00ecnh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 c\u00e1c th\u1ec3 hi\u1ec7n trong th\u1ebf gi\u1edbi th\u1ef1c c\u1ee7a c\u00e1c th\u1ef1c th\u1ec3 nh\u01b0 l\u1edbp, \u0111i c\u00f9ng v\u1edbi m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 h\u00e0nh vi.<\/p>\n

2. M\u1ed9t s\u1ed1 lo\u1ea1i ng\u00f4n ng\u1eef ch\u00ednh trong Object Oriented Programming l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

C\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh s\u1eed d\u1ee5ng v\u00e0 tu\u00e2n theo m\u00f4 h\u00ecnh L\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c OOP, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. M\u1ed9t s\u1ed1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng ch\u00ednh bao g\u1ed3m:<\/p>\n

    \n
  • Java<\/li>\n
  • C++<\/li>\n
  • Javascript<\/li>\n
  • con tr\u0103n<\/li>\n
  • PHP<\/li>\n
  • V\u00e0 nhi\u1ec1u ng\u00f4n ng\u1eef kh\u00e1c.<\/li>\n<\/ul>\n

    3. Structured Programming l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

    Structured Programming hay l\u1eadp tr\u00ecnh c\u1ea5u tr\u00fac \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ph\u01b0\u01a1ng ph\u00e1p l\u1eadp tr\u00ecnh bao g\u1ed3m m\u1ed9t lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n c\u00f3 c\u1ea5u tr\u00fac ho\u00e0n ch\u1ec9nh. \u1ede \u0111\u00e2y, c\u1ea5u tr\u00fac \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t kh\u1ed1i, ch\u1ee9a m\u1ed9t b\u1ed9 quy t\u1eafc v\u00e0 c\u00f3 m\u1ed9t lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n x\u00e1c \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n nh\u01b0 (if\/then\/else), (while v\u00e0 for), c\u1ea5u tr\u00fac kh\u1ed1i v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh con.<\/p>\n

    : Top 10+ C\u00e2u H\u1ecfi Ph\u1ecfng V\u1ea5n C# \u0110\u01b0\u1ee3c H\u1ecfi Nhi\u1ec1u Nh\u1ea5t<\/strong><\/p>\n

    4. C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a OOPs l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

    OOP hay l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng ch\u1ee7 y\u1ebfu bao g\u1ed3m b\u1ed1n t\u00ednh n\u0103ng d\u01b0\u1edbi \u0111\u00e2y v\u00e0 h\u00e3y \u0111\u1ea3m b\u1ea3o b\u1ea1n kh\u00f4ng b\u1ecf l\u1ee1 b\u1ea5t k\u1ef3 t\u00ednh n\u0103ng n\u00e0o trong s\u1ed1 n\u00e0y:<\/p>\n

      \n
    • Inheritance<\/li>\n
    • Encapsulation<\/li>\n
    • Polymorphism<\/li>\n
    • Data Abstraction<\/li>\n<\/ul>\n

      5. L\u1ee3i th\u1ebf c\u1ee7a s\u1eed d\u1ee5ng OOPs l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

      M\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf ch\u00ednh c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng OOPs bao g\u1ed3m:<\/p>\n

        \n
      • OOP h\u1eefu \u00edch trong vi\u1ec7c gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 \u1edf m\u1ee9c \u0111\u1ed9 r\u1ea5t ph\u1ee9c t\u1ea1p.<\/li>\n
      • C\u00e1c ch\u01b0\u01a1ng tr\u00ecnh ph\u1ee9c t\u1ea1p cao c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o, x\u1eed l\u00fd v\u00e0 duy tr\u00ec d\u1ec5 d\u00e0ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
      • OOP th\u00fac \u0111\u1ea9y t\u00e1i s\u1eed d\u1ee5ng m\u00e3, do \u0111\u00f3 gi\u1ea3m d\u01b0 th\u1eeba.<\/li>\n
      • OOP c\u0169ng gi\u00fap \u1ea9n c\u00e1c chi ti\u1ebft kh\u00f4ng c\u1ea7n thi\u1ebft v\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a Tr\u1eebu t\u01b0\u1ee3ng h\u00f3a d\u1eef li\u1ec7u.<\/li>\n
      • OOP d\u1ef1a tr\u00ean c\u00e1ch ti\u1ebfp c\u1eadn t\u1eeb d\u01b0\u1edbi l\u00ean, kh\u00f4ng gi\u1ed1ng nh\u01b0 m\u00f4 h\u00ecnh l\u1eadp tr\u00ecnh c\u1ea5u tr\u00fac, s\u1eed d\u1ee5ng c\u00e1ch ti\u1ebfp c\u1eadn t\u1eeb tr\u00ean xu\u1ed1ng.<\/li>\n<\/ul>\n

        : B\u1ed9 25 C\u00e2u H\u1ecfi Ph\u1ecfng V\u1ea5n L\u1eadp Tr\u00ecnh Vi\u00ean Th\u01b0\u1eddng G\u1eb7p Khi Xin Vi\u1ec7c<\/strong><\/p>\n

        C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n OOPs n\u00e2ng cao<\/strong><\/h2>\n

        6. C\u00f3 ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ea1o objects t\u1eeb class?\u00a0<\/strong><\/h3>\n

        Kh\u00f4ng. B\u1ea1n ch\u1ec9 c\u1ea7n t\u1ea1o objects n\u1ebfu l\u1edbp c\u01a1 s\u1edf c\u00f3 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c kh\u00f4ng t\u0129nh. Nh\u01b0ng n\u1ebfu l\u1edbp c\u00f3 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c t\u0129nh th\u00ec kh\u00f4ng c\u1ea7n t\u1ea1o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. B\u1ea1n c\u00f3 th\u1ec3 g\u1ecdi ph\u01b0\u01a1ng th\u1ee9c l\u1edbp tr\u1ef1c ti\u1ebfp v\u00e0 trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, s\u1eed d\u1ee5ng t\u00ean l\u1edbp.<\/p>\n

        7. M\u1ed9t constructor l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

        Constructor l\u00e0 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u1eb7c bi\u1ec7t c\u00f3 t\u00ean tr\u00f9ng v\u1edbi t\u00ean l\u1edbp. Constructor ph\u1ee5c v\u1ee5 m\u1ee5c \u0111\u00edch \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1edfi t\u1ea1o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n

        V\u00ed d\u1ee5, gi\u1ea3 s\u1eed c\u00f3 m\u1ed9t l\u1edbp t\u00ean l\u00e0 \u201cMyClass\u201d, th\u00ec khi kh\u1edfi t\u1ea1o l\u1edbp n\u00e0y, b\u1ea1n s\u1ebd s\u1eed d\u1ee5ng c\u00fa ph\u00e1p:<\/p>\n

        MyClass myClassObject = new MyClass();<\/p>\n

        \u1ede \u0111\u00e2y, ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c g\u1ecdi sau t\u1eeb kh\u00f3a \u201cnew\u201d \u2013 MyClass(), l\u00e0 h\u00e0m constructor c\u1ee7a l\u1edbp n\u00e0y. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap kh\u1edfi t\u1ea1o d\u1eef li\u1ec7u, ph\u01b0\u01a1ng th\u1ee9c th\u00e0nh vi\u00ean v\u00e0 g\u00e1n ch\u00fang cho \u0111\u1ed1i t\u01b0\u1ee3ng myClassObject.<\/p>\n

        8. Destructor l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

        Tr\u00e1i ng\u01b0\u1ee3c v\u1edbi h\u00e0m constructor kh\u1edfi t\u1ea1o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 ch\u1ec9 \u0111\u1ecbnh kh\u00f4ng gian cho ch\u00fang, h\u00e0m destructor c\u0169ng l\u00e0 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u0111\u1eb7c bi\u1ec7t. Nh\u01b0ng c\u00e1c h\u00e0m destructor gi\u1ea3i ph\u00f3ng t\u00e0i nguy\u00ean v\u00e0 b\u1ed9 nh\u1edb b\u1ecb chi\u1ebfm b\u1edfi m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00e1c h\u00e0m destructor \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng g\u1ecdi khi m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang b\u1ecb h\u1ee7y.<\/p>\n

        9. Class v\u00e0 Structure c\u00f3 gi\u1ed1ng nhau kh\u00f4ng? N\u1ebfu kh\u00f4ng, h\u00e3y ph\u00e2n bi\u1ec7t Class v\u00e0 Structure<\/strong><\/h3>\n

        Kh\u00f4ng, Class v\u00e0 Structure kh\u00f4ng gi\u1ed1ng nhau. M\u1eb7c d\u00f9 c\u00f3 v\u1ebb gi\u1ed1ng nhau, nh\u01b0ng ch\u00fang c\u00f3 nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ri\u00eang. V\u00ed d\u1ee5, Structure \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb ng\u0103n x\u1ebfp, trong khi Class \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb heap. Ngo\u00e0i ra, inheritance kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a Structure, nh\u01b0ng v\u1edbi Class, inheritance l\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean h\u01a1n.<\/p>\n

        10. N\u00eau c\u00e1c lo\u1ea1i k\u1ebf th\u1eeba (inheritance) kh\u00e1c nhau trong OOPs<\/strong><\/h3>\n

        C\u00e1c lo\u1ea1i th\u1eeba k\u1ebf kh\u00e1c nhau bao g\u1ed3m:<\/p>\n

          \n
        • Single inheritance<\/li>\n
        • Multiple inheritances<\/li>\n
        • Multi-level inheritance<\/li>\n
        • Hierarchical inheritance<\/li>\n
        • Hybrid inheritance<\/li>\n<\/ul>\n

          11. S\u1ef1 kh\u00e1c nhau gi\u1eefa overloading v\u00e0 overriding l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

          Overloading l\u00e0 m\u1ed9t t\u00ednh n\u0103ng \u0111a h\u00ecnh th\u1eddi gian bi\u00ean d\u1ecbch trong \u0111\u00f3 m\u1ed9t th\u1ef1c th\u1ec3 c\u00f3 nhi\u1ec1u tri\u1ec3n khai c\u00f3 c\u00f9ng t\u00ean. V\u00ed d\u1ee5, Overloading ph\u01b0\u01a1ng th\u1ee9c v\u00e0 Overloading to\u00e1n t\u1eed.<\/p>\n

          Trong khi \u0111\u00f3, Overriding l\u00e0 m\u1ed9t t\u00ednh n\u0103ng \u0111a h\u00ecnh trong th\u1eddi gian ch\u1ea1y, trong \u0111\u00f3 m\u1ed9t th\u1ef1c th\u1ec3 c\u00f3 c\u00f9ng t\u00ean, nh\u01b0ng c\u00e1ch tri\u1ec3n khai c\u1ee7a n\u00f3 thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh th\u1ef1c thi. V\u00ed d\u1ee5: Overriding ph\u01b0\u01a1ng th\u1ee9c.<\/p>\n

          12. L\u1edbp tr\u1eebu t\u01b0\u1ee3ng (Abstract Class) trong OOP l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

          M\u1ed9t l\u1edbp tr\u1eebu t\u01b0\u1ee3ng l\u00e0 m\u1ed9t l\u1edbp \u0111\u1eb7c bi\u1ec7t ch\u1ee9a c\u00e1c ph\u01b0\u01a1ng th\u1ee9c tr\u1eebu t\u01b0\u1ee3ng. \u00dd ngh\u0129a c\u1ee7a l\u1edbp tr\u1eebu t\u01b0\u1ee3ng l\u00e0 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c tr\u1eebu t\u01b0\u1ee3ng b\u00ean trong n\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c tri\u1ec3n khai v\u00e0 ch\u1ec9 \u0111\u01b0\u1ee3c khai b\u00e1o. Do \u0111\u00f3, khi m\u1ed9t l\u1edbp con k\u1ebf th\u1eeba l\u1edbp tr\u1eebu t\u01b0\u1ee3ng v\u00e0 c\u1ea7n s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng th\u1ee9c tr\u1eebu t\u01b0\u1ee3ng c\u1ee7a n\u00f3, ch\u00fang c\u1ea7n \u0111\u1ecbnh ngh\u0129a v\u00e0 tri\u1ec3n khai.<\/p>\n

          13. M\u1ed9t Abstract Class kh\u00e1c Interface nh\u01b0 th\u1ebf n\u00e0o?\u00a0<\/strong><\/h3>\n

          C\u1ea3 Interface v\u00e0 Abstract Class hay l\u1edbp tr\u1eebu t\u01b0\u1ee3ng \u0111\u1ec1u l\u00e0 c\u00e1c lo\u1ea1i l\u1edbp \u0111\u1eb7c bi\u1ec7t ch\u1ec9 ch\u1ee9a ph\u1ea7n khai b\u00e1o ph\u01b0\u01a1ng th\u1ee9c ch\u1ee9 kh\u00f4ng ch\u1ee9a ph\u1ea7n tri\u1ec3n khai c\u1ee7a ch\u00fang. Nh\u01b0ng Interface ho\u00e0n to\u00e0n kh\u00e1c v\u1edbi m\u1ed9t l\u1edbp tr\u1eebu t\u01b0\u1ee3ng. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa hai lo\u1ea1i n\u00e0y l\u00e0 khi m\u1ed9t Interface \u0111\u01b0\u1ee3c tri\u1ec3n khai, l\u1edbp con ph\u1ea3i \u0111\u1ecbnh ngh\u0129a t\u1ea5t c\u1ea3 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a n\u00f3 v\u00e0 cung c\u1ea5p vi\u1ec7c tri\u1ec3n khai.\u00a0<\/p>\n

          Trong khi m\u1ed9t l\u1edbp tr\u1eebu t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c k\u1ebf th\u1eeba, l\u1edbp con kh\u00f4ng c\u1ea7n cung c\u1ea5p \u0111\u1ecbnh ngh\u0129a v\u1ec1 ph\u01b0\u01a1ng th\u1ee9c tr\u1eebu t\u01b0\u1ee3ng c\u1ee7a n\u00f3, cho \u0111\u1ebfn khi v\u00e0 tr\u1eeb khi l\u1edbp con \u0111ang s\u1eed d\u1ee5ng n\u00f3. Ngo\u00e0i ra, m\u1ed9t l\u1edbp tr\u1eebu t\u01b0\u1ee3ng c\u00f3 th\u1ec3 ch\u1ee9a c\u00e1c ph\u01b0\u01a1ng th\u1ee9c tr\u1eebu t\u01b0\u1ee3ng c\u0169ng nh\u01b0 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c kh\u00f4ng tr\u1eebu t\u01b0\u1ee3ng.<\/p>\n

          14. M\u1ed9t exception l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

          M\u1ed9t exception c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n \u0111\u1eb7c bi\u1ec7t, \u0111\u01b0\u1ee3c ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh th\u1ef1c thi ch\u01b0\u01a1ng tr\u00ecnh trong th\u1eddi gian ch\u1ea1y, khi\u1ebfn qu\u00e1 tr\u00ecnh th\u1ef1c thi b\u1ecb d\u1eebng l\u1ea1i. L\u00fd do c\u00f3 s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a exception ch\u1ee7 y\u1ebfu l\u00e0 do m\u1ed9t v\u1ecb tr\u00ed trong ch\u01b0\u01a1ng tr\u00ecnh, n\u01a1i ng\u01b0\u1eddi d\u00f9ng mu\u1ed1n l\u00e0m \u0111i\u1ec1u g\u00ec \u0111\u00f3 m\u00e0 ch\u01b0\u01a1ng tr\u00ecnh kh\u00f4ng ch\u1ec9 \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ea7u v\u00e0o kh\u00f4ng mong mu\u1ed1n.<\/p>\n

          15. Garbage Collection trong OOPs l\u00e0 g\u00ec?\u00a0<\/strong><\/h3>\n

          L\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OPPs) xoay quanh c\u00e1c th\u1ef1c th\u1ec3 nh\u01b0 \u0111\u1ed1i t\u01b0\u1ee3ng. M\u1ed7i \u0111\u1ed1i t\u01b0\u1ee3ng ti\u00eau th\u1ee5 b\u1ed9 nh\u1edb v\u00e0 c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a m\u1ed9t l\u1edbp. V\u00ec v\u1eady, n\u1ebfu nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0y v\u00e0 k\u00fd \u1ee9c c\u1ee7a ch\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch th\u00ec c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ed9t s\u1ed1 l\u1ed7i li\u00ean quan \u0111\u1ebfn b\u1ed9 nh\u1edb v\u00e0 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 b\u1ecb l\u1ed7i.<\/p>\n

          Garbage Collection \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u01a1 ch\u1ebf x\u1eed l\u00fd b\u1ed9 nh\u1edb trong ch\u01b0\u01a1ng tr\u00ecnh. Th\u00f4ng qua thu gom r\u00e1c, b\u1ed9 nh\u1edb kh\u00f4ng mong mu\u1ed1n \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng c\u00f2n c\u1ea7n thi\u1ebft.<\/p>\n

          : 7 B\u01b0\u1edbc Chu\u1ea9n B\u1ecb V\u00e0 10 K\u1ef9 N\u0103ng Ph\u1ecfng V\u1ea5n Xin Vi\u1ec7c B\u1ea1n C\u1ea7n Ph\u1ea3i Bi\u1ebft<\/strong><\/p>\n

          K\u1ebft lu\u1eadn<\/strong><\/h2>\n

          V\u1eady l\u00e0 Masterskills \u0111\u00e3 c\u00f9ng b\u1ea1n t\u00ecm hi\u1ec3u m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n OPP<\/strong> hay g\u1eb7p nh\u1ea5t. N\u1eafm v\u1eefng nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y s\u1ebd kh\u00f4ng ch\u1ec9 n\u00e2ng cao hi\u1ec3u bi\u1ebft c\u1ee7a b\u1ea1n v\u1ec1 OOP m\u00e0 c\u00f2n t\u0103ng c\u01a1 h\u1ed9i th\u1ec3 hi\u1ec7n t\u1ed1t trong c\u00e1c cu\u1ed9c ph\u1ecfng v\u1ea5n l\u1eadp tr\u00ecnh.\u00a0<\/p>\n

          H\u00e3y nh\u1edb th\u1ef1c h\u00e0nh tri\u1ec3n khai c\u00e1c kh\u00e1i ni\u1ec7m OOP trong c\u00e1c d\u1ef1 \u00e1n m\u00e3 h\u00f3a \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c kinh nghi\u1ec7m th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t. N\u1ebfu b\u1ea1n c\u1ea3m th\u1ea5y h\u1ee9ng th\u00fa v\u1edbi c\u00e1c ch\u1ee7 \u0111\u1ec1 t\u01b0\u01a1ng t\u1ef1, h\u00e3y gh\u00e9 qua Blog c\u1ee7a Masterskills th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 c\u1eadp nh\u1eadt th\u00eam nhi\u1ec1u n\u1ed9i dung ch\u1ea5t l\u01b0\u1ee3ng v\u1ec1 th\u1ebf gi\u1edbi l\u1eadp tr\u00ecnh nh\u00e9!<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

          Object-Oriented Programming (OOP) \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. V\u00ec v\u1eady, vi\u1ec7c hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m c\u1ee7a n\u00f3 l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean tham v\u1ecdng. Trong b\u00e0i vi\u1ebft n\u00e0y, Masterskills s\u1ebd c\u00f9ng b\u1ea1n kh\u00e1m ph\u00e1 nh\u1eefng c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n OPP […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[181],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/49900"}],"collection":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/comments?post=49900"}],"version-history":[{"count":0,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/49900\/revisions"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=49900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=49900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=49900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}