我们可以定义一个类，使其实现Runnable接口，然后将该类的实例作为构建Thread变量构造函数的参数。示例代码如下：
实现Runnable接口以创建线程
class MyRunnable implements Runnable
{
     public void run()
     {
         for (int i =0; i < 5; i++)
         {
             System.out.println("Thread " + Thread.currentThread().getName() + " is running.");
         }
         System.out.println("Thread " + Thread.currentThread().getName() + " is finished.");
     }
}


public static void createThreadByRunnable()
{
     MyRunnable runnable = new MyRunnable();
     Thread thread = new Thread(runnable);
     thread.start();

我们可以定义一个类，使其实现Runnable接口，然后将该类的实例作为构建Thread变量构造函数的参数。示例代码如下：
实现Runnable接口以创建线程
class MyRunnable implements Runnable
{
     public void run()
     {
         for (int i =0; i < 5; i++)
         {
             System.out.println("Thread " + Thread.currentThread().getName() + " is running.");
         }
         System.out.println("Thread " + Thread.currentThread().getName() + " is finished.");
     }
}


public static void createThreadByRunnable()
{
     MyRunnable runnable = new MyRunnable();
     Thread thread = new Thread(runnable);
     thread.start();