Java多线程的三种开启方式

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  1. 继承自Thread重写run方法 
     public class MyThread extends Thread {

     @Override
     public void run() {
         System.out.println(getName());
         String name = getName();
         for (int i = 0; i < 20; i++) {
             System.out.println(name + "---" + i);
         }
     }
 }
  2. 实现Runable接口及run方法 
     public class RunableImp implements Runnable {

     @Override
     public void run() {
         String name = Thread.currentThread().getName();
         for (int i = 0; i < 20; i++) {
             System.out.println(name + "---" + i);
         }
     }
 }
  3. 匿名内部类实现run方法 
     // Runable匿名
 Thread thread1 = new Thread(new Runnable() {
     @Override
     public void run() {
         String name = Thread.currentThread().getName();
         for (int i = 0; i < 20; i++) {
             System.out.println(name + "---" + i);
         }
     }
 });
 thread1.start();
 // Thread匿名
 new Thread() {
     @Override
     public void run() {
         String name = Thread.currentThread().getName();
         for (int i = 0; i < 20; i++) {
             System.out.println(name + "---" + i);
         }
     }
 }.start();

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