Java find object reference -

i have panel more buttons of buttonclass different names. how can find out when click finish button on button clicked first(which object of buttonclass) , modify name ?

public class buttonclass extends jbutton{     public string name;      public buttonclass(string name){             this.name = name;             this.addactionlistener(new buttonlistener());     }      public class buttonlistener implements actionlistener {         public void actionperformed(actionevent e) {             jframe frame = new jframe();             jbutton finish = new jbutton("finish");             finish.addactionlistener(new finish());             panel.add(finish);             frame.add(panel);             frame.setfocusable(false);             frame.setsize(1600,900);             frame.setlocationrelativeto(null);             frame.setvisible(true);             frame.setdefaultcloseoperation(jframe.dispose_on_close);         }     } } 

and other actionlistner trying create finish button :

public class finish  implements actionlistener {     public void actionperformed(actionevent e) {         //here     } } 

so have buttonclass button1 = new buttonclass("button1"); button2, etc ; when click on 1 of them , frame open jbutton called finish . when click on want modify name of buttonclass clicked in first place.

you modify action listener class keep reference button, like:

public class finish  implements actionlistener {      buttonclass button;      public finish( buttonclass button ) {         this.button = button;     }      public void actionperformed(actionevent e) {         // can use field button when click     } } 

of course, you'll have modify button preparation:

jbutton finish = new jbutton("finish"); finish.addactionlistener(new finish((buttonclass)e.getsource())); 

note i'm passing e.getsource() finish constructor. gives source of click in buttonlistener, , pass down finish object.