Java多线程实战之交叉打印的两种方法
今天小编就为大家分享一篇关于Java多线程实战之交叉打印的两种方法，小编觉得内容挺不错的，现在分享给大家，具有很好的参考价值，需要的朋友一起跟随小编来看看吧要求效果：先打印5次“printa…”，再打印5次“printb…”，每次打印间隔1秒，重复循环20次
方式一：使用wait()和notifyall()方法
public class myservice {
private volatile boolean flag = false;
public synchronized void printa() {
try {
while (flag) {
wait();
}
for (int i = 0; i < 5; i++) {
system.out.println("printa...");
timeunit.seconds.sleep(1);
}
flag = true;
notifyall();
} catch (interruptedexception e) {
e.printstacktrace();
}
}
public synchronized void printb() {
try {
while (!flag) {
wait();
}
for (int i = 0; i < 5; i++) {
system.out.println("printb...");
timeunit.seconds.sleep(1);
}
flag = false;
notifyall();
} catch (interruptedexception e) {
e.printstacktrace();
}
}
}
public class backupa implements runnable {
private myservice myservice;
public backupa(myservice myservice) {
super();
this.myservice = myservice;
}
@override
public void run() {
myservice.printa();
}
}
public class backupb implements runnable {
private myservice myservice;
public backupb(myservice myservice) {
super();
this.myservice = myservice;
}
@override
public void run() {
myservice.printb();
}
}
public class run {
public static void main(string[] args) {
myservice myservice = new myservice();
for (int i = 0; i < 20; i++) {
new thread(new backupa(myservice)).start();
new thread(new backupb(myservice)).start();
}
}
}
方式二：使用await()和signalall()方法
public class myservice {
private lock lock = new reentrantlock();
private condition condition = lock.newcondition();
private boolean flag = false;
public void printa() {
try {
lock.lock();
while (flag) {
condition.await();
}
for (int i = 0; i < 5; i++) {
system.out.println("printa...");
timeunit.seconds.sleep(1);
}
flag = true;
condition.signalall();
} catch (interruptedexception e) {
e.printstacktrace();
} finally {
lock.unlock();
}
}
public void printb() {
try {
lock.lock();
while (!flag) {
condition.await();
}
for (int i = 0; i < 5; i++) {
system.out.println("printb...");
timeunit.seconds.sleep(1);
}
flag = false;
condition.signalall();
} catch (interruptedexception e) {
e.printstacktrace();
} finally {
lock.unlock();
}
}
}
public class threada implements runnable {
private myservice myservice;
public threada(myservice myservice) {
super();
this.myservice = myservice;
}
@override
public void run() {
myservice.printa();
}
}
public class threadb implements runnable {
private myservice myservice;
public threadb(myservice myservice) {
super();
this.myservice = myservice;
}
@override
public void run() {
myservice.printb();
}
}
public class run {
public static void main(string[] args) {
myservice myservice = new myservice();
for (int i = 0; i < 20; i++) {
new thread(new threada(myservice)).start();
new thread(new threadb(myservice)).start();
}
}
}
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，谢谢大家对CodeAE代码之家的支持。如果你想了解更多相关内容请查看下面相关链接
原文链接：https://blog.csdn.net/qq_40378034/article/details/86766001
http://www.zzvips.com/article/176522.html
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