java - Is it valid to instantiate windowListener interface? -


windowlistener interface? how instantiation valid per following? can not instantiate interface right?

windowlistener l1=new windowlistener() {          public void windowopened(windowevent e) {             // todo auto-generated method stub          }          public void windowiconified(windowevent e) {             // todo auto-generated method stub          }          public void windowdeiconified(windowevent e) {             // todo auto-generated method stub          }          public void windowdeactivated(windowevent e) {             // todo auto-generated method stub          }          public void windowclosing(windowevent e) {             // todo auto-generated method stub          }          public void windowclosed(windowevent e) {             // todo auto-generated method stub          }          public void windowactivated(windowevent e) {             // todo auto-generated method stub          }     };

this creating new anonymous class implements windowlistener interface.


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