java - double click on jlist in netbeans -


i want select item in list mouse. found code didn't work.

mouselistener mouselistener = new mouseadapter() {     public void mouseclicked(mouseevent e) {         if (e.getclickcount() == 2) {             int index = list.locationtoindex(e.getpoint());             system.out.println("double clicked on item " + index);          }     } }; list.addmouselistener(mouselistener);

try code, sample application works fine !!!!!!

import java.awt.borderlayout; import java.awt.event.mouseadapter; import java.awt.event.mouseevent; import java.awt.event.mouselistener;  import javax.swing.jframe; import javax.swing.jlist; import javax.swing.jscrollpane;  public class calc {   public static void main(string args[]) {     string labels[] = { "a", "b", "c", "d", "e", "f", "g", "h" };     jframe frame = new jframe("selecting jlist");     frame.setdefaultcloseoperation(jframe.exit_on_close);     jlist jlist = new jlist(labels);     jscrollpane scrollpane1 = new jscrollpane(jlist);     frame.add(scrollpane1, borderlayout.center);      mouselistener mouselistener = new mouseadapter() {       public void mouseclicked(mouseevent mouseevent) {         jlist thelist = (jlist) mouseevent.getsource();         if (mouseevent.getclickcount() == 2) {           int index = thelist.locationtoindex(mouseevent.getpoint());           if (index >= 0) {             object o = thelist.getmodel().getelementat(index);             system.out.println("double-clicked on: " + o.tostring());           }         }       }     };     jlist.addmouselistener(mouselistener);      frame.setsize(350, 200);     frame.setvisible(true);   } }

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