Clicking a button on one window closes a different window

[cproger]

This might sound like it's very simple but I tried many things and it doesn't work.

When the user clicks the back button on a window it's supposed to also dispose another window.

I've tried using static.

if(Tester.backJButton.isEnabled())
        {
                this.dispose();
        }

Tester is the name of the class holding the back button.

Thanks

[JamesCherrill]

You will need the window with the back button to have a reference to the other window that needs to be closed.
Then you can call that window's dispose method...

JFrame otherWindow = // a reference to the other window

backButton.addActionListener(e -> {
     otherWindow.dispose();
     this.dispose();
});

[cproger]

Frame otherWindow = // a reference to the other window

What do you mean by referencing to the other window? Do you mean the class?

[JamesCherrill]

No, the instance of the class.
So if win2 needs to dispose win1 as well you can do something like

JFrame win1 = new Window1();
...
JFrame win2 = new Window2(win1); // pass a ref to win1 into win2 so win2 can call win1's methods

so Window2's constructor would look like

class Window2 extends JFrame {
...
private Window1 win1;

public Window2(Window1 win1) { // constructor
     this.win1 = win1;
}

now any method/event handler in win2 can call win1's methods to dispose() it or whatever

[cproger]

Thank you :)