多线程轮流打印 ABC 10 遍，超简单
static Lock lock = new ReentrantLock();
static Condition a = lock.newCondition();
static Condition b = lock.newCondition();
static Condition c = lock.newCondition();
static Thread at = new A();
static Thread bt = new B();
static Thread ct = new C();
static int v = 10;
public static void main(String[] args) throws InterruptedException {
at.start();
bt.start();
ct.start();
try {
lock.lock();
a.signal();
} finally {
lock.unlock();
}
}
static class A extends Thread {
@Override
public void run() {
for (; ; ) {
if (v <= 0) {
bt.interrupt();
ct.interrupt();
return;
}
--v;
try {
lock.lock();
a.await();
System.out.println("A");
LockSupport.parkNanos(1000);
b.signal();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
lock.unlock();
}
}
}
}
static class B extends Thread {
@Override
public void run() {
for (; ; ) {
try {
lock.lock();
b.await();
System.out.println("B");
LockSupport.parkNanos(1000);
c.signal();
} catch (InterruptedException e) {
e.printStackTrace();
return;
} finally {
lock.unlock();
}
}
}
}
static class C extends Thread {
@Override
public void run() {
for (; ; ) {
try {
lock.lock();
c.await();
System.out.println("C-------");
LockSupport.parkNanos(1000);
a.signal();
} catch (InterruptedException e) {
e.printStackTrace();
return;
} finally {
lock.unlock();
}
}
}
}
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