package concurrent;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;
/**
* Auth: zhouhongliang
* Date:2019/8/1
* 線程等待與喚醒機制 Condition
* 按指定順序執(zhí)行線程
*/
public class ConditionDemo {
public static void main(String[] args) {
//聲明重入鎖
ReentrantLock reentrantLock = new ReentrantLock();
//聲明Condition對象
final Condition condition1 = reentrantLock.newCondition();
final Condition condition2 = reentrantLock.newCondition();
final Condition condition3 = reentrantLock.newCondition();
new Thread(() -> {
//加鎖
reentrantLock.lock();
try {
//等待
condition1.await();
System.out.println("AA");
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
//解鎖
reentrantLock.unlock();
}
}).start();
new Thread(() -> {
reentrantLock.lock();
try {
condition2.await();
System.out.println("BB");
condition1.signal();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
reentrantLock.unlock();
}
}).start();
new Thread(() -> {
reentrantLock.lock();
try {
condition3.await();
System.out.println("CC");
condition2.signal();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
reentrantLock.unlock();
}
}).start();
new Thread(() -> {
reentrantLock.lock();
try {
System.out.println("DD");
//喚醒
condition3.signal();
} catch (Exception e) {
e.printStackTrace();
} finally {
reentrantLock.unlock();
}
}).start();
}
}
輸出結果:
DD
CC
BB
AA
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Process finished with exit code 0
當前標題:JAVA多線程按指定順序執(zhí)行線程Condition應用
轉(zhuǎn)載注明:http://www.chinadenli.net/article34/ieodpe.html
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