多线程

 1 /**
 2  * 
 3  * @author Administrator
 4  *继承Thread类
 5  */
 6 public class Thread1 extends Thread{
 7 
 8     @Override
 9     public void run() {
10         // TODO Auto-generated method stub
11         for(int i=0;i<10;i++){//方便举例：run（）方法这里只打印10句Hello world和名字
12             System.out.println("Hello world!"+getName());
13         }
14     }
15 
16 }

 1 public class Test {
 2 
 3     /**
 4      * @param args
 5      */
 6     public static void main(String[] args) {
 7         // TODO Auto-generated method stub
 8         Thread1 a=new Thread1();
 9         a.setName("this is my name!");//通过Thread类的setName（），getName（）方法的设置和得到名字，具体查看API帮助文档
10         a.start();
11     }
12 
13 }
运行的结果：

Hello world!this is my name!
Hello world!this is my name!
Hello world!this is my name!
Hello world!this is my name!
Hello world!this is my name!
Hello world!this is my name!
Hello world!this is my name!
Hello world!this is my name!
Hello world!this is my name!
Hello world!this is my name!

 1 /**
 2  * 
 3  * @author Administrator
 4  *实现Runnable接口
 5  */
 6 public class Runnable1 implements Runnable{
 7 
 8     @Override
 9     public void run() {
10         // TODO Auto-generated method stub
11         for(int i=0;i<10;i++){//方便举例：run（）方法这里只打印10句Hello world和名字
12             System.out.println("Hello world!"+Thread.currentThread().getName());//Runnable接口中没有getName()方法，只有用Thread类的currentThread().getName()方法得到名字
13         }
14     }
15 }

 1 public class Test {
 2 
 3     /**
 4      * @param args
 5      */
 6     public static void main(String[] args) {
 7         // TODO Auto-generated method stub
 8         Runnable1 r=new Runnable1();
 9         Thread thread=new Thread(r);
10         thread.setName("This is a name!");//Runnable接口中没有setName（）方法，使用Thread类
11         thread.start();//Runnable接口中没有start（）方法，使用Thread类
12     }
13 
14 }

1 public static void main(String[] args) {
2         // TODO Auto-generated method stub
3         new Thread(new Runnable1(),"This is a name").start();//这里用了匿名类的一种形式，结果和之前一样
4         
5         
6         
7     }
8 
9 }

 1 public class Test {
 2 
 3     /**
 4      * @param args
 5      */
 6     public static void main(String[] args) {
 7         // TODO Auto-generated method stub
 8         
 9         new Thread(new Runnable(){
10             public void run(){
11                 for(int i=0;i<10;i++){//方便举例：run（）方法这里只打印10句Hello world和名字
12                         System.out.println("Hello world!"+Thread.currentThread().getName());
13                 }
14             }
15         },"This is a name!").start();//这里用了匿名类的一种形式，结果和之前的一样
16         
17     }
18 
19 }

运行的结果：

Hello world!This is a name!
Hello world!This is a name!
Hello world!This is a name!
Hello world!This is a name!
Hello world!This is a name!
Hello world!This is a name!
Hello world!This is a name!
Hello world!This is a name!
Hello world!This is a name!
Hello world!This is a name!