两个线程实现AABBCCDD
每个线程只能能输出ABCD,试用连个线程实现AABBCCDD - 试用公平锁来实现每个字符的输出
- Lock
public class TestDemo1 {public static void main(String[] args) {Lock lock = new ReentrantLock(
public class TestDemo1 {public static void main(String[] args) {Lock lock = new ReentrantLock(