Exiting an Application When a Frame Is Closed

    

import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class Main {
  public static void main() {

    Frame frame = new Frame();

    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent evt) {
        System.exit(0);
      }
    });
  }
}

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Exiting an Application When a Frame Is Closed : Frame « Swing JFC « Java

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