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  1.  
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. abstract class A{
  8.  
  9. abstract void callme();
  10.  
  11. public void normal(){
  12. System.out.println("this is concrete method");
  13.   }  
  14. }
  15.  
  16. class B extends A{
  17. void callme(){
  18. System.out.println("this is callme."); 
  19.  }
  20. public static void main(String[] args){
  21.   B b = new B();
  22.   b.callme();
  23.   b.normal();
  24.   }
  25. }
Success #stdin #stdout 0.04s 4386816KB
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this is callme.
this is concrete method
https://ideone.com/xeqtSg
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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