fork download
copy 
  1. public class Main {
  2.     static abstract class Context {
  3.         abstract String hey();
  4.     }
  5.  
  6.     interface Listener {
  7.         void sup(String s);
  8.     }
  9.  
  10.     static class MainActivity extends Context implements Listener {
  11.         void hi() {
  12.             method(this);
  13.         }
  14.  
  15.         <T extends Context & Listener> void method(T t) {
  16.             t.sup(t.hey());
  17.         }
  18.  
  19.         @Override
  20.         String hey() {
  21.             return "hey.";
  22.         }
  23.  
  24.         @Override
  25.         public void sup(String s) {
  26.             System.out.println(s);
  27.         }
  28.     }
  29.  
  30.  
  31.     public static void main(String[] args) {
  32.         new MainActivity().hi();
  33.     }
  34. }
Success #stdin #stdout 0.1s 320512KB
comments ()
stdin
copy 
Standard input is empty
stdout
copy 
hey.
https://ideone.com/CgTn0i
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!