Question

I am working on a swing application using JinternalFrames but when i open one Jinternelframe it appears in the JDesktopePane and with another click on the same component another instance show up.
i tried to fix this problem by declaring new instance of each JInternalFrame in the Constructor, but in the memory side it’s useless, so i am asking if there is any methode to get rid of this issue.
Thank you a lot guys.

Answer 1

Lazy-init the frames:

private JInternalFrame frame1;
private JInternalFrame frame2;
...

/**
 * invoked when the button used to show the first frame is clicked
 */
private void showFrame1() {
    if (frame1 == null) {
        frame1 = new JInternalFrame();
        // TODO initialize the frame
    }
    // TODO show the frame
}

// same for the other frames