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Java Source  |  2000-09-08  |  284 b   |  15 lines
  1. interface Callback {
  2. void callback(int param);
  3. }
  4.  
  5. class Client implements Callback { 
  6. void callback(int p) {
  7. System.out.println("callback called with " + p);
  8. } }
  9.  
  10. class TestIface {
  11. public static void main(String args[]) { 
  12. Callback c = new Client();
  13. c.callback(42);
  14. } }
  15.