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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 Base { }
  9. class Ideone extends Base { }
  10.  
  11. public class Main {
  12.    public static void main(String args[]) {
  13.    }
  14. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:9: error: cannot inherit from final Base
class Ideone extends Base { }
                     ^
1 error
stdout
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Standard output is empty
https://ideone.com/XqUSFe
language:
Java (12.0.1)
created:
9 years ago
visibility:
public

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