java实现多线程的一种简单方式

package test.local;

/**
* Document:本类作用---->
* User: yangjf
* Date: 2016072016/7/1021:07
*/
public class TheadTest {
public static void createString(){
try{
for(int i=0;i<200;i++){
System.out.println("第"+i+"个："+i);
Thread.sleep(1000);
}
}catch(Exception e){
e.printStackTrace();
}

}

public static void main(String[] args) {
Thread th1=new Thread(new Runnable() {
@Override
public void run() {
System.out.println("启动第一个线程");
createString();
System.out.println("结束第一个线程");

}
});
Thread th2=new Thread(new Runnable() {
@Override
public void run() {
System.out.println("启动第2个线程");
createString();
System.out.println("结束第2个线程");
}
});
Thread th3=new Thread(new Runnable() {
@Override
public void run() {
System.out.println("启动第3个线程");
createString();
System.out.println("结束第3个线程");
}
});
th1.start();
th2.start();
th3.start();
}
}