JFrame.setDefaultCloseOperation(int option) Example

JFrame.setDefaultCloseOperation(int option) Example

JFrame.setDefaultCloseOperation() method is used to specify several options that may be taken when the user clicks the close button.
Think of a scenario where you have several JFrame windows that opens ass  the  user interacts with the applcation.
The user many want to close one JFrame window without exiting the whole application and thats where JFrame.setDefaultCloseOperation comes in.

 JFrame.setDefaultCloseOperation methods options

  • JFrame.EXIT_ON_CLOSE-exits the application.
  • JFrame.HIDE_ON_CLOSE-the frame is hidden and application stills keeps on running.
  • JFrame.DISPOSE_ON_CLOSE-the object is disposed but application does  not exit
  • JFrame.DO_NOTHING_ON_CLOSE-the close click is ignored.

 JFrame.setDefaultCloseOperation Example

[
import javax.swing.JFrame;

public class JFrameExample  extends JFrame{

    JFrameExample()
    {
        super("JFrame Example");
        setSize(400,400);
        setLayout(null);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setVisible(true);

    }
    public static void main(String args[])
    {
        new JFrameExample();
    }

}
]

Note:

Incase you may forget to call this method,by default JFrame.HIDE_ON_CLOSE is used.

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Java Codes: JFrame.setDefaultCloseOperation(int option) Example
JFrame.setDefaultCloseOperation(int option) Example
JFrame.setDefaultCloseOperation(int option) Example
Java Codes
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