Optional way to close a dialog window

Question

I\'m using a custom JFrame to implement a simple dialog in a Java application I\'m working on.

After the user pushes the \'Apply\' button in the window, it should close.

Answer 1

There are multiple operations which can be performed when you close a JFrame.

Suppose you have a JFrame

JFrame frame = new JFrame();

This one exits the JVM when closed.

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

This one just hides the JFrame.

frame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);

This one disposes the JFrame.

frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

When the last displayable window within the Java virtual machine (VM) is disposed of, the VM may terminate

And the default is do nothing.

frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);