派生类如何调用基类的私有方法？

Z时代
2024-01-10
分类：问答

public class PrivateOverride {
    private void f() {  
        System.out.println("private f()");  
    }
}
public class Derived extends PrivateOverride {
    public void f() {                         //this method is never run.
        System.out.println("public f()");     
    }  
}
public static void main(String[] args) {
    // instantiate Derived and assign it to 
    // object po of type PrivateOverride.
    PrivateOverride po = new Derived();
    // invoke method f of object po.  It
    // chooses to run the private method of PrivateOveride
    // instead of Derived
    po.f();                         
  }  
}