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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. interface Printable{  
  6. void print();  
  7. }  
  8. interface Showable extends Printable{  
  9. void show();  
  10. }  
  11. class TestInterface4 implements Showable{  
  12. public void print(){System.out.println("Hello");}  
  13. public void show(){System.out.println("Welcome");}  
  14.  
  15. public static void main(String args[]){  
  16. Printable obj = new TestInterface4();  
  17. obj.print();  
  18. obj.show();  
  19.  }  
  20. }
Compilation error #stdin compilation error #stdout 0.04s 4386816KB
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stdin
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Standard input is empty
compilation info 
Main.java:18: error: cannot find symbol
obj.show();  
   ^
  symbol:   method show()
  location: variable obj of type Printable
1 error
stdout
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Standard output is empty
https://ideone.com/6dEaeb
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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