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实现Runnable接口的类必须使用Thread类的实例才能创建线程。通过Runnable接口创建线程分为两步：
1. 将实现Runnable接口的类实例化。
2. 建立一个Thread对象，并将第一步实例化后的对象作为参数传入Thread类的构造方法。
最后通过Thread类的start方法建立线程。
下面的代码演示了如何使用Runnable接口来创建线程：
package
mythread;
public class MyRunnable implements Runnable
{
public void run()
{
System.out.println(Thread.currentThread().getName());
}
public static void main(String[] args)
{
MyRunnable t1 = new MyRunnable();
MyRunnable t2 = new MyRunnable();
Thread thread1 = new Thread(t1, " MyThread1 " );
Thread thread2 = new Thread(t2);
thread2.setName( " MyThread2 " );
thread1.start();
thread2.start();
}
}
public class MyRunnable implements Runnable
{
public void run()
{
System.out.println(Thread.currentThread().getName());
}
public static void main(String[] args)
{
MyRunnable t1 = new MyRunnable();
MyRunnable t2 = new MyRunnable();
Thread thread1 = new Thread(t1, " MyThread1 " );
Thread thread2 = new Thread(t2);
thread2.setName( " MyThread2 " );
thread1.start();
thread2.start();
}
}
上面代码的运行结果如下：
MyThread1
MyThread2
MyThread2
