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| 10. 4. 3. 暂停，恢复，停止一个线程。 |
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class MyThread implements Runnable {
Thread thrd;
boolean suspended;
boolean stopped;
MyThread(String name) {
thrd = new Thread(this, name);
suspended = false;
stopped = false;
thrd.start();
}
public void run() {
try {
for (int i = 1; i < 10; i++) {
System.out.print(".");
Thread.sleep(50);
synchronized (this) {
while (suspended)
wait();
if (stopped)
break;
}
}
} catch (InterruptedException exc) {
System.out.println(thrd.getName() + " interrupted.");
}
System.out.println("\n" + thrd.getName() + " exiting.");
}
synchronized void stop() {
stopped = true;
suspended = false;
notify();
}
synchronized void suspend() {
suspended = true;
}
synchronized void resume() {
suspended = false;
notify();
}
}
public class Main {
public static void main(String args[]) throws Exception {
MyThread mt = new MyThread("MyThread");
Thread.sleep(100);
mt.suspend();
Thread.sleep(100);
mt.resume();
Thread.sleep(100);
mt.suspend();
Thread.sleep(100);
mt.resume();
Thread.sleep(100);
mt.stop();
}
}
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