多线程按顺序打印1 ~ 25，A ~ Z

使用两个线程分别打印1 ~ 25，A ~ Z按12A34B56C78D的顺序输出

public class ThreadPrint {

	public static void main(String[] args) {
		final Object lock = new Object();
		new Thread(new Runnable() {
			public void run() {
				synchronized (lock) {
					for (int i = 1; i < 26; i++) {
						if (i % 2 != 0) {
							System.out.print(i);
						} else {
							System.out.print(i);
							try {
								lock.wait(1000);
							} catch (InterruptedException e) {
								e.printStackTrace();
							}
						}
					}
				}
			}
		}).start();

		// 睡10ms保证能进入线程A
		try {
			Thread.sleep(10);
		} catch (Exception e) {
			e.printStackTrace();
		}

		new Thread(new Runnable() {
			public void run() {
				synchronized (lock) {
					for (int i = 0; i < 26; i++) {
						//大写A~Z
						System.out.print((char) (65 + i));
						//小写a~z
//						System.out.print((char) (97 + i));
						try {
							lock.wait(1000);
						} catch (InterruptedException e) {
							e.printStackTrace();
						}
					}
				}
			}
		}).start();
	}
}