多线程，Thread，Runnable，线程两种实现方法

继承Thread类
实现Runnable接口

package test;

//public class Threadtest extends Thread {
// public Threadtest() {
//  Thread t = new Thread(this);
//  t.start();
// }
//
// public static void main(String[] args) {
//  @SuppressWarnings("unused")
//  Threadtest t = new Threadtest();
// }
//
// public void run() {
//  while (true)
//   System.out.println("继承Threadtest类");
// }
//}

public class Threadtest implements Runnable {
 public Threadtest() {
  Thread t = new Thread(this);
  t.start();
 }

 public static void main(String[] args) {
  Threadtest t2 = new Threadtest();
 }

 public void run() {
  while (true)
   System.out.println("实现Runnable接口");
 }
}

 

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