如何使用java实现两个线程交替打印?相信大部分人都不太了解,今天小编为了让大家更加了解两个线程交替打印是如何实现的,给大家总结了以下内容,跟随小编一起来看看吧。
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使用ReentrantLock实现两个线程交替打印
实现字母在前数字在后
package com.study.pattern;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class Demo2 {
private static Lock lock = new ReentrantLock();
private static Condition c1 = lock.newCondition();
private static Condition c2 = lock.newCondition();
private static CountDownLatch count = new CountDownLatch(1);
public static void main(String[] args) {
String c = "ABCDEFGHI";
char[] ca = c.toCharArray();
String n = "123456789";
char[] na = n.toCharArray();
Thread t1 = new Thread(() -> {
try {
lock.lock();
count.countDown();
for(char caa : ca) {
c1.signal();
System.out.print(caa);
c2.await();
}
c1.signal();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
lock.unlock();
}
});
Thread t2 = new Thread(() -> {
try {
count.await();
lock.lock();
for(char naa : na) {
c2.signal();
System.out.print(naa);
c1.await();
}
c2.signal();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
lock.unlock();
}
});
t1.start();
t2.start();
}
}最后输出结果:

使用LinkedTransferQueue实现两个线程交替打印
实现字母在前数字在后
package com.study.pattern;
import java.util.concurrent.LinkedTransferQueue;
public class Demo3 {
private static LinkedTransferQueue linkedC = new LinkedTransferQueue();
private static LinkedTransferQueue linkedN = new LinkedTransferQueue();
public static void main(String[] args) {
String c = "ABCDEFGHI";
char[] ca = c.toCharArray();
String n = "123456789";
char[] na = n.toCharArray();
Thread t1 = new Thread(() -> {
for(char caa : ca) {
try {
linkedC.put(caa);
char a = linkedN.take();
System.out.print(a);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
Thread t2 = new Thread(() -> {
for(char naa : na) {
try {
char b = linkedC.take();
System.out.print(b);
linkedN.put(naa);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
t1.start();
t2.start();
}
} 输出结果:

使用synchronized实现两个线程交替打印
实现字母在前数字在后
package com.study.pattern;
import java.util.concurrent.CountDownLatch;
public class Demo4 {
private static CountDownLatch count = new CountDownLatch(1);
public static void main(String[] args) {
String c = "ABCDEFGHI";
char[] ca = c.toCharArray();
String n = "123456789";
char[] na = n.toCharArray();
Object lock = new Object();
Thread t1 = new Thread(() -> {
synchronized (lock) {
count.countDown();
for(char caa : ca) {
System.out.print(caa);
lock.notify();
try {
lock.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
lock.notify();
}
});
Thread t2 = new Thread(() -> {
try {
count.await();
} catch (InterruptedException e) {
e.printStackTrace();
}
synchronized (lock) {
for(char naa : na) {
System.out.print(naa);
lock.notify();
try {
lock.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
lock.notify();
}
});
t1.start();
t2.start();
}
}输出结果:

使用LockSupport实现两个线程交替打印
实现字母在前数字在后
package com.study.pattern;
import java.util.concurrent.locks.LockSupport;
public class Demo5 {
private static Thread t1;
private static Thread t2;
public static void main(String[] args) {
String c = "ABCDEFGHI";
char[] ca = c.toCharArray();
String n = "123456789";
char[] na = n.toCharArray();
t1 = new Thread(() -> {
for(char caa : ca) {
System.out.print(caa);
LockSupport.unpark(t2);
LockSupport.park();
}
});
t2 = new Thread(() -> {
for(char naa : na) {
LockSupport.park();
System.out.print(naa);
LockSupport.unpark(t1);
}
});
t1.start();
t2.start();
}
}输出结果:

看完上述内容,你们对两个线程交替打印的实现大概了解了吗?如果想了解更多相关文章内容,欢迎关注创新互联行业资讯频道,感谢各位的阅读!