java线程创建的两种方式

java线程创建有两种方式

1）继承Thread类

2）实现runnable接口

具体例子：

1）继承Thread类

package demo.example.com;


public class threadtest2 {


public static void main(String[] args) {
Computer2 t=new Computer2();
Computer3 t1=new Computer3();
t.start();
t1.start();
}


}
class Computer2 extends Thread{
public void run(){
for(int i=0;i<10;i++)
System.out.println("这个数字是"+i);
}
}
class Computer3 extends Thread{
public void run(){
for(int i=0;i<10;i++)
System.out.println(i);
}
}

2.实现runnable 接口

package demo.example.com;


public class threadtest {
public static void main(String[] args) {
// TODO Auto-generated method stub
Computer c=new Computer();
Computer1 c1=new Computer1();
Thread t=new Thread(c);
Thread t1=new Thread(c1);//创建线程的语句，其中括号内是实现runnable接口的的实例！！
t.start();
t1.start();
}


}
class Computer implements Runnable{


@Override
public void run() {
for(int i=0;i<10;i++)
System.out.println("这个数字是"+i);

}


}
class Computer1 implements Runnable{


@Override
public void run() {
for(int i=0;i<10;i++)
System.out.println(i);

}


}

Runnable 接口的定义：

public interface Runnable

{

public abstract void run();

}