How to go back to a JFrames in Java

Question

I have a button in a JFrame, if pressed, it takes us to another frame. I used this code:

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt         


        

Answer 1

you shouldn't use more then one frame.

You should have NOTHING in JFrame except defaultExitOperation, size, preferedsize and visible true. Instead place all buttons and fields into a JPanel and add/remove the JPanel from the JFrame.

If you want another Window open use JDialog.

btw: you can have your MainFrame setVisible false and open a JDialog with your MainFrame as parent. Only if someone writes down the right user + password you make the MainFrame visible.