C++类的虚函数继承 && Java类的方法重写

C++的虚函数virtual #include <iostream> using namespace std; class Father { public: virtual void hello() { cout << "father"; } }; class Son : public Father { public: void hello() { cout << "son"; } }; int main() { Father* f = new Son(); // 如果Father类不写virtual，则结果为father f->hello(); // son } Java的类方法重写 public class Father { public void hello() { System.out.println("father"); } } public class Son { public void hello() { System.out.println("son"); } } import java.util.ArrayList; public class Main { public static void main(String[] args) { Father f = new Son(); f.hello() // son } }