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Close frame only if another specific frame is been closed before

I have a JFrame (mainframe) and JButton put in. When i click on JButton, this open another JFrame. I want to close mainframe only if the second frame is closed and i want obtain the same effect of when you have a open JChooser and try to close the JFrame. (JChooser flashing if you try to click on the X's frame). How can i do this?

What you want to achieve can be easily done with JDialog. Read the below mentioned link.
https://docs.oracle.com/javase/tutorial/uiswing/components/dialog.html

Closing one JFrame while other is up

I have two JFrames opened simultaneously (by clicking certain button in the main Frame I open second Frame). I can of course exit whole program by clicking X on the main frame. The thing is: is there a way to close my subFrame by clicking X while the Main Frame remain opened? In the subFrame there is going certain action and I want to shut it down by click X but not closing the Main Frame at a time.

Write your close function like this
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE)

Open New Window And Close Parent

When my program launches, a window (aka "StartWindow") opens that has 3 options: New Game/Load Game/Exit. When New Game or Load Game is clicked (and after some input), the game window (aka "GameWindow") will open so the user can play.
When the GameWindow opens, I would like to have the StartWindow close. And when the GameWindow closes, the StartWindow will open until the actual "EXIT" button is clicked.
Is there a way to do this? Right now, the only way I can achieve something similar to this is having a boolean called "gameRunning". When this is true, the buttons on StartWindow will have no action when clicked. Opposite when false.
For example purposes, suppose that each window has 3 buttons, a text field, and nothing else.

Use setVisible(false) method on parent before opening any child window. When child window closes call setVisible(true). It will solve your problem

How do I close a JFrame that opened another frame?

I've a program that starts with a welcomeScreen JFrame, on which it has a JButton with the option of starting the game.. when I click that button, it opens the JFrame with my game however it does not close.. anyway of how to do this? I only know System.exit(0) and this closes everything..

I've a program that starts with a welcomeScreen JFrame, on which it
has a JButton with the option of starting the game.. when I click that
button, it opens the JFrame with my game however it does not close..
anyway of how to do this? I only know System.exit(0) and this closes
everything..
don't to create another JFrame
use CardLayout with JFrame.pack(), after card is switched

You can try: jFrame.dispose();

Do JMenuItem Accelerators function properly when in a frame opened by another frame?

I have one frame that opens up another frame (editor). Most of the menu accelerators don't work when opened this way, but when I run the editor frame standalone, they do work. Should it work?

It turns out that when you open one frame from another in java you have to start another thread or the keybindings don't work right - they all get caught by the first frame. This makes sense.