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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. final class A{
  9. }
  10. class B extends A{
  11.  
  12. }
  13. class Ideone
  14. {
  15. 	public static void main (String[] args) throws java.lang.Exception
  16. 	{
  17. 		// your code goes here
  18. 		B b=new B();
  19. 	}
  20. }
Compilation error #stdin compilation error #stdout 0.04s 711168KB
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stdin
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Standard input is empty
compilation info 
Main.java:10: error: cannot inherit from final A
class B extends A{
                ^
1 error
stdout
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Standard output is empty
https://ideone.com/16t4tJ
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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