public class HelloWorld
{
public static void main(String args[])
//向屏幕上写字符串
{
System.out.println("***************");
System.out.println("My name is *****");
System.out.println("***************");
}
}

//最大公约数和最小公倍数

import java.io.*;
class Math
{
public static void main(String args[])
{
int a=35, b=40;
int total, r;
total=a*b;
do
{
if(a<b)
{
int t=a;
a=b;
b=t;
}

r=a%b;
a=b;
b=r;
}while(r!=0);
System.out.println("最大公因数是："+a);
System.out.println("最小公倍数是："+total/a);
}
}