Thread.yield()方法
复习多线程时，想敲一个demo来看下Thread的具体几个方法，其中yield方法，按自己理解敲一个demo，相比与网上其他的，感觉更好理解，且可以很好地体现"礼让"
示例
public class MyClass {
volatile static long currTime
= 0;
public static void main(String
[] args
) {
MyClass myClass
= new MyClass();
System
.out
.println("让时间短的先走");
Thread thread1
= new Thread(new Runnable() {
@Override
public synchronized void run() {
long random
= (long) (Math
.random() * 1000);
System
.out
.println("线程1耗时：" + random
);
if (currTime
< random
) {
currTime
= random
;
Thread
.yield();
System
.out
.println("线程1礼让");
}
synchronized (myClass
) {
try {
Thread
.sleep(random
);
System
.out
.println("线程1：end");
} catch (InterruptedException e
) {
e
.printStackTrace();
}
}
}
});
Thread thread2
= new Thread(new Runnable() {
@Override
public void run() {
long random
= (long) (Math
.random() * 1000);
System
.out
.println("线程2耗时:" + random
);
if (currTime
< random
) {
currTime
= random
;
Thread
.yield();
System
.out
.println("线程2礼让");
}
synchronized (myClass
) {
try {
Thread
.sleep(random
);
System
.out
.println("线程2:end");
} catch (InterruptedException e
) {
e
.printStackTrace();
}
}
}
});
thread1
.start();
thread2
.start();
}
}
补充：volatile 是一个关键字，修饰后每次读取的都是最新值，一个线程修改，另一个会马上察觉到
很简单的一个demo,就是两个线程共用一个对象锁，所以两个线程执行时必须抢占使用，我的想法就是加入yield()方法，让sleep短的那个线程先执行
结果
