Java学习 Day01 多线程

Java多线程实现方式有 2 种

1.继承 Thread 类，重写 run 方法

• 案例
• 测试类 Thread01

1package top.wanqq.thread;
2
3/**
4 * @author wanqq
5 */
6public class Thread01 extends Thread {
7    @Override
8    public void run() {
9        for (int i = 0; i < 200; i++) {
10            System.out.println("-------" + i);
11            try {
12                Thread.sleep(1);
13            } catch (InterruptedException e) {
14                e.printStackTrace();
15            }
16        }
17    }
18}
19

• 主类 ThreadIndex

1package top.wanqq.thread;
2
3/**
4 * @author wanqq
5 */
6public class ThreadIndex {
7    public static void main(String[] args) {
8        new Thread01().start();
9        for (int i = 0; i < 200; i++) {
10            System.out.println("Thread index :" + i);
11            try {
12                Thread.sleep(1);
13            } catch (InterruptedException e) {
14                e.printStackTrace();
15            }
16        }
17    }
18}
19

• 结果
• 

2.实现 Runnable 接口

• 测试类 RunnableThreadTest

1package top.wanqq.thread;
2
3/**
4 * @author wanqq
5 */
6public class RunnableThreadTest implements Runnable{
7
8    @Override
9    public void run() {
10        for (int i = 0; i < 10; i++) {
11            System.out.println("runnable test :" + i);
12            try {
13                Thread.sleep(1);
14            } catch (InterruptedException e) {
15                e.printStackTrace();
16            }
17        }
18    }
19}
20

• 主类 ThreadIndex

1package top.wanqq.thread;
2
3/**
4 * @author wanqq
5 */
6public class ThreadIndex {
7    public static void main(String[] args) {
8        new Thread(new RunnableThreadTest()).start();
9        for (int i = 0; i < 10; i++) {
10            System.out.println("Thread index :" + i);
11            try {
12                Thread.sleep(1);
13            } catch (InterruptedException e) {
14                e.printStackTrace();
15            }
16        }
17    }
18}

• 结果
•