面試題一：實現兩個線程交替列印數字_面試

public class Solution1 {private static Object lock = new Object();private static int i = 1;public static void main(String[] args) {Thread thread1 = new Thread() {public void run() {while (i <= 10) {synchronized (lock) {if (i % 2 == 1) {System.out.println("thread1  " + i++);} else {lock.notifyAll();try {lock.wait(1000);} catch (InterruptedException e) {e.printStackTrace();}}}}}};Thread thread2 = new Thread() {public void run() {while (i <= 10) {synchronized (lock) {if (i % 2 == 0) {System.out.println("thread2  " + i++);} else {lock.notifyAll();try {lock.wait(1000);} catch (InterruptedException e) {e.printStackTrace();}}}}}};thread1.start();thread2.start();}}