Close application when click on JFrame close button


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COMPLETE SOURCE CODE FOR : ExitApplicationUsingJFrameCloseButton.java
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import javax.swing.JFrame;

public class ExitApplicationUsingJFrameCloseButton
{
public static void main(String[]args)
{
JFrame a=new JFrame("EXIT AN APPLICATION USING JFRAME CLOSE BUTTON");

//JFrame.EXIT_ON_CLOSE will make your application close when you hit JFrame close button
a.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
a.setSize(200,200);
a.setVisible(true);
}
}


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JUST COMPILE AND EXECUTE IT
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