import java.text.DateFormat;

import java.text.SimpleDateFormat;

import java.util.Date;

/**

* Created by lock on 2016/11/11.

*/

public class MultiThread extends Thread {

/**

* 线程名字，可以不实现

* @param tName

*/

public MultiThread(String tName){

super(tName);

}

/**

* 继承 Thread 类 ，并且实现run方法

*/

public void run(){

for (int row = 1; row < 10; row++){

for (int i = 0; i < row; i++) {

print("*");

}

echo("");

}

try {

sleep(2000);

}catch (Exception e){

echo(e.getMessage());

}

Date date = new Date();

DateFormat format = new SimpleDateFormat("YYYY-MM-dd HH:mm:ss:SSS");

String time = format.format(date);

echo("I am sleep , time is: "+time+" thread name is:"+this.getName());

}

public static void main(String args[]){

MultiThread t1 = new MultiThread("a");

MultiThread t2 = new MultiThread("b");

MultiThread t3 = new MultiThread("c");

t1.start();

t2.start();

t3.start();

}

public static void echo(String msg){

System.out.println(msg);

}

public static void print(String msg){

System.out.print(msg);

}

}