Close all open jframes when opening a new one

Question

How can I close all jframes opened in my project when I run an action that opens another jframe?

I have a login system and when necessary, I invoke another frame to define a password. After setting the password I do the Dispose() to this jframe and start the new jframe, but I would like the login jframe to also close.

Perhaps a more viable solution would be to call a jDialog to define that password, but I don’t feel comfortable when it comes to jDialogs and that’s why I’m invoking a new jframe.

Any suggestions?

EDIT:

I create the 'JFrame Form' as follows:

Then in the design part the name of Frame I don’t know what it is because it only has this:

Just how can I set this frame if I don’t know her name ?

Answer 1

I think this is the code you need:

System.gc();  
for (Window window : Window.getWindows()} {  
    window.dispose();  
    // por vezes pode ser melhor usar setVisivel(false);
}

Heed: This code closes all frames. If any of your frames has the configuration of setDefaultCloseOperation as EXIT_ON_CLOSE the program will terminate, so you should change to HIDE_ON_CLOSE

You also have another option:

If you are sure which way the user went to get to the frame that is can do so:

structure:

Panel Princiapl --> Painellogin --> Painelalterarpass

Main panel calls login frame: (takes as parameter the reference of the main panel)

login(PainelPrincipal);

In the login constructor you get:

public login(JFrame PainelPrincipal){ ... }

If you need to change the password, in login calls the password change frame that takes as parameter the PainelPrincipal and the PainelLogin:

alterarPass(PainelPrincipal, PainelLogin);

In the class of alterarPass in the builder you get like this:

  public alterarPass(Jframe PainelPrincipal, Jframe PainelLogin){
      ...
 }
 //depois fazes o dispose destes dois frames onde precisares
  PainelPrincipal.dispose();
  PainelLogin.dispose();

But imagine that he dutrante this path opened another frame, this will remain open, that is why I say that the first approach is better...

Answer 2

One suggestion is just set Jframe’s visibility to false.

jframeLogin.setVisible(false);

And when you want it to appear again:

jframeLogin.setVisible(true);