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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. class Program
  7. {
  8.         public static void  FunF(A o)
  9.         {    o.F();  }
  10.         public static void FunG(A o)
  11.         {    o.G();  }
  12.  
  13.         public static void main(String[] args)
  14.         {
  15.             B b = new B();
  16.             System.out.print("FunF(b) output: "); FunF(b);
  17.             System.out.print("FunG(b) output: "); FunG(b);
  18.  
  19.             System.out.print("b.F output: "); b.F();
  20.             System.out.print("b.G output: "); b.G();
  21.  
  22. 	     A a = new B();
  23. 	     System.out.print("a.F output: "); a.F();
  24.              System.out.print("a.G output: "); a.G();
  25.  
  26. 	     a =new A();
  27. 	     System.out.print("a.F output: "); a.F();
  28.              System.out.print("a.G output: "); a.G();
  29.  
  30.         }
  31.     }
  32.  
  33.     class A
  34.     {
  35.         public void F()
  36.         {        System.out.println("A.F");     }
  37.  
  38.         public void G()
  39.         {        System.out.println("A.G");    }
  40.     }
  41.  
  42.     class B extends A
  43.     {
  44.         public void F()
  45.         {       System.out.println("B.F");     }
  46.  
  47.         public void G()
  48.         {       System.out.println("B.G");    }
  49.     }
Success #stdin #stdout 0.07s 380160KB
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Standard input is empty
stdout
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FunF(b) output: B.F
FunG(b) output: B.G
b.F output: B.F
b.G output: B.G
a.F output: B.F
a.G output: B.G
a.F output: A.F
a.G output: A.G
https://ideone.com/u8X5sm
language:
Java (12.0.1)
created:
10 years ago
visibility:
public

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