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ExchangerDemo.java
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42 lines (35 loc) · 1.34 KB
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package concurrent;
import java.util.concurrent.Exchanger;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
/**
* 当两个线程都到达调用exchange方法的同步点的时候，两个线程就能交换彼此的数据。
*/
public class ExchangerDemo {
private static Exchanger<String> exchanger = new Exchanger();
public static void main(String[] args) {
//代表男生和女生
ExecutorService service = Executors.newFixedThreadPool(2);
service.execute(() -> {
try {
//男生对女生说的话
String girl = exchanger.exchange("我其实暗恋你很久了......");
System.out.println("女孩儿说：" + girl);
} catch (InterruptedException e) {
e.printStackTrace();
}
});
service.execute(() -> {
try {
System.out.println("女生慢慢的从教室你走出来......");
TimeUnit.SECONDS.sleep(3);
//男生对女生说的话
String boy = exchanger.exchange("我也很喜欢你......");
System.out.println("男孩儿说：" + boy);
} catch (InterruptedException e) {
e.printStackTrace();
}
});
}
}