Thread: setDefaultUncaughtExceptionHandler(UncaughtExceptionHandler eh) : Thread « java.lang « Java by API

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2. java.lang
3. Thread

Thread: setDefaultUncaughtExceptionHandler(UncaughtExceptionHandler eh)

  
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;

public class MainClass extends JFrame {

  public static void main(String[] args) {
    new MainClass().setVisible(true);
  }

  public MainClass() {
    Container cp = getContentPane();
    JButton crasher = new JButton("Crash");
    cp.add(crasher);
    crasher.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        throw new RuntimeException("You asked for it");
      }
    });
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
      public void uncaughtException(Thread t, Throwable ex) {
        System.out.println("You crashed thread " + t.getName());
        System.out.println("Exception was: " + ex.toString());
      }
    });
    pack();
  }
}

           
         
    
  

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