java - How to pass variable data from a JFrame to another? -


let have textfield , button in frame 1, , after user clicked button, proceed next frame , display out of user entered in frame 1. have search web , non of worked me.

try following:

frame1.java public class frame1 extends jframe{      protected static frame2 frame2;      protected jtextfield textfield = new jtextfield();     protected jbutton button = new jbutton("button");      public frame1() {          jframe frame1 = new jframe();         frame1.setbounds(0, 0, 200, 100);         frame1.setvisible(true);          frame1.add(textfield, borderlayout.north);         frame1.add(button, borderlayout.center);          button.addactionlistener(                 newbuttonlistener(                 textfield,frame2.textfield));     }       public static void main(string[] args) {         frame2 = new frame2();         new frame1();            } }  frame2.java public class frame2 {      protected jtextfield textfield = new jtextfield();      public frame2() {          jframe frame1 = new jframe();         frame1.setbounds(200, 0, 200, 100);         frame1.setvisible(true);          frame1.add(textfield, borderlayout.center);          } }  buttonlistener.java public class buttonlistener implements actionlistener{      protected jtextfield textfield;     protected jtextfield textfield2;      public buttonlistener(jtextfield textfield, jtextfield textfield2) {         this.textfield = textfield;         this.textfield2 = textfield2;     }      @override     public void actionperformed(actionevent e) {         if (e.getactioncommand().equals("button")) {             system.out.println(textfield.gettext());             textfield2.settext(textfield.gettext());         }        }    }

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