Thread 类实现例子
//继承线程类
public class MyThread extends Thread {
private String name;
//调用线程的外不构造类
public MyThread(String name) {
this.name = name;
}
@Override
public void run() {//执行内部方法内容
System.out.println("MyThread is " + name);
}
}
//main启动线程
public class Test {
public static void main(String[] args){
MyThread myThread1=new MyThread("线程1");
MyThread myThread2=new MyThread("线程2");
MyThread myThread3=new MyThread("线程3");
myThread1.start();
myThread2.start();
myThread3.start();
System.out.println("myThread1 id ="+myThread1.getId());
System.out.println("myThread1 id ="+myThread2.getId());
System.out.println("myThread1 id ="+myThread3.getId());
}
}
Runnable接口实现线程no 数据共享or 数据共享方式
//实现接口
public class MyRunnable implements Runnable {
private String name;
public MyRunnable(String name) {
this.name = name;
}
@Override
public void run() {
System.out.println("MyRunnable is " + name);
}
}
//启动线程
public class Test {
public static void main(String[] args){
MyRunnable myRunnable1=new MyRunnable("Runnable1");
MyRunnable myRunnable2=new MyRunnable("Runnable2");
MyRunnable myRunnable3=new MyRunnable("Runnable3");
//需要通过thread启动
Thread myThread1=new Thread(myRunnable1);
myThread1.start();
System.out.println("myThread1 id ="+myThread1.getId());
Thread myThread2=new Thread(myRunnable2);
myThread2.start();
System.out.println("myThread1 id ="+myThread2.getId());
Thread myThread3=new Thread(myRunnable3);
myThread3.start();
System.out.println("myThread1 id ="+myThread3.getId());
//数据共享的方式 使用runnable接口数据共享
MyRunnable myRunnable5=new MyRunnable("Runnable5");
Thread myThread51=new Thread(myRunnable5);
myThread51.start();
System.out.println("myThread1 id ="+myThread51.getId());
Thread myThread52=new Thread(myRunnable5);
myThread52.start();
System.out.println("myThread2 id ="+myThread52.getId());
Thread myThread53=new Thread(myRunnable5);
myThread53.start();
System.out.println("myThread3 id ="+myThread53.getId());
}
}
从上边的例子发现实现线程的方式 Thread 也是实现了Runnable 接口 ，Runnable接口其实还可以干很多其他的事情 我们使用线程的时候直接使用Thread就好了
