标签:Thread 三线 int lock 打印 private num new 循环
package threadTest;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
//A B C 交替打印 ,一共十轮
class ShareResource{
private int num = 1 ; //A-1 ,B-2,C-3
private Lock lock = new ReentrantLock();
private Condition c1 = lock.newCondition();
private Condition c2 = lock.newCondition();
private Condition c3 = lock.newCondition();
public void print(int ThreadNum){
lock.lock();
try{
if(ThreadNum == 1){
//1 判断
while(num != 1){
c1.await();
}
//2 干活
for(int i = 1 ; i <= 5 ;i++){
System.out.println(Thread.currentThread().getName() + "\t" + i);
}
//3 通知
num = 2;
c2.signal();
}else if(ThreadNum == 2){
//1 判断
while(num != 2){
c2.await();
}
//2 干活
for(int i = 1 ; i <= 10 ;i++){
System.out.println(Thread.currentThread().getName() + "\t" + i);
}
//3 通知
num = 3;
c3.signal();
}else{
//1 判断
while(num != 3){
c3.await();
}
//2 干活
for(int i = 1 ; i <= 15 ;i++){
System.out.println(Thread.currentThread().getName() + "\t" + i);
}
//3 通知
num = 1;
c1.signal();
}
}catch (Exception e){
e.printStackTrace();
}finally {
lock.unlock();
}
}
}
public class xunhuanPrint {
public static void main(String[] args) {
ShareResource shareResource = new ShareResource();
new Thread(() -> {
for (int i = 0; i < 10; i++) {
shareResource.print(1);
}
},"A").start();
new Thread(() -> {
for (int i = 0; i < 10; i++) {
shareResource.print(2);
}
},"B").start();
new Thread(() -> {
for (int i = 0; i < 10; i++) {
shareResource.print(3);
}
},"C").start();
}
}
标签:Thread,三线,int,lock,打印,private,num,new,循环 来源: https://blog.csdn.net/nishuawan/article/details/118084343
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