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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.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class a{
  9. public void display(int i)
  10. {
  11. System.out.println("printing value of int"+i);
  12. }}
  13. class B extends a
  14. {
  15. public void display(byte b)
  16. {
  17. System.out.println("print value of byte"+b);
  18. }}
  19. public class Main
  20.  
  21. {
  22. public static void main()
  23. {
  24. a obj=new B();
  25. byte mybyte=19;
  26. obj.display(mybyte);
  27. }
  28. }
Compilation error #stdin compilation error #stdout 0s 0KB
stdin
Standard input is empty
compilation info
spoj: The program compiled successfully, but main class was not found.
      Main class should contain method: public static void main (String[] args).
stdout

Standard output is empty