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  1.  
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. abstract class A{
  8. abstract void callme(); 
  9. }
  10.  
  11. class B extends A{
  12. void callme(){
  13. System.out.println("this is callme."); 
  14.  }
  15. public static void main(String[] args){
  16.   B b = new B();
  17.   b.callme();
  18.    }
  19. }
Success #stdin #stdout 0.05s 4386816KB
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stdin
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Standard input is empty
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this is callme.
https://ideone.com/rHe4Id
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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