//: c14:Interrupt.java // From 'Thinking in Java, 2nd ed.' by Bruce Eckel // www.BruceEckel.com. See copyright notice in CopyRight.txt. // The alternative approach to using stop() // when a thread is blocked. // <applet code=Interrupt width=200 height=100> // </applet> import javax.swing.*; import java.awt.*; import java.awt.event.*; import com.bruceeckel.swing.*; class Blocked extends Thread { public synchronized void run() { try { wait(); // Blocks } catch(InterruptedException e) { System.out.println("InterruptedException"); } System.out.println("Exiting run()"); } } public class Interrupt extends JApplet { private JButton interrupt = new JButton("Interrupt"); private Blocked blocked = new Blocked(); public void init() { Container cp = getContentPane(); cp.setLayout(new FlowLayout()); cp.add(interrupt); interrupt.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent e) { System.out.println("Button pressed"); if(blocked == null) return; Thread remove = blocked; blocked = null; // to release it remove.interrupt(); } }); blocked.start(); } public static void main(String[] args) { Console.run(new Interrupt(), 200, 100); } } ///:~