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

  package top.wanqq.thread;
  

/**

• @author wanqq
• / public class Thread01 extends Thread { @Override public void run() {

    for (int i = 0; i < 200; i++) {
        System.out.println("-------" + i);
        try {
            Thread.sleep(1);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

  } }

- 主类 ThreadIndex 
```Java
package top.wanqq.thread;

/**
 * @author wanqq
 */
public class ThreadIndex {
    public static void main(String[] args) {
        new Thread01().start();
        for (int i = 0; i < 200; i++) {
            System.out.println("Thread index :" + i);
            try {
                Thread.sleep(1);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

• 结果
• 

  2.实现 Runnable 接口

• 测试类 RunnableThreadTest

  package top.wanqq.thread;
  

/**

• @author wanqq

• / public class RunnableThreadTest implements Runnable{

  @Override public void run() {

    for (int i = 0; i < 10; i++) {
        System.out.println("runnable test :" + i);
        try {
            Thread.sleep(1);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

  } }

- 主类 ThreadIndex 
```java 
package top.wanqq.thread;

/**
 * @author wanqq
 */
public class ThreadIndex {
    public static void main(String[] args) {
        new Thread(new RunnableThreadTest()).start();
        for (int i = 0; i < 10; i++) {
            System.out.println("Thread index :" + i);
            try {
                Thread.sleep(1);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

• 结果
•