Question

I have a main jFrame with the help of which i press button and open new JFrames but the problem is that when i open other JFrame the previous ones still remains there where as what i want is that when i press next button then i move forward to the new JFrame (the previous one should not be there) and when i press previous button i move back to the previous JFrame.

I know there are functions of dispose,they do well like jframe1.dispose() but i dont get it how to hide the very first JFrame whose code in the main is written like this

    public static void main(String args[]) {


    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() 
          {          
           new GraphicalInterface().setVisible(true);
          }
       });
     }

how do i set this as .setVisible(false) in the button code?

Answer 1

You need to retain a reference to the JFrame, so you can set it’s visibility later.

private JFrame myFrame;

public void run() {
  myFrame = new GUI();
  myFrame.setVisible(true);
}

public void hide() {
  myFrame.setVisible(false);
}

Note that a JFrame is a top-level container, you are only really supposed to have one per application. It may be better if instead of using multiple JFrames you use just one, and swap in various JPanels instead.