求100内的所有素数的和，用JAVA编程

import java.util.*;
class in {
public static void main(String[] arg) {
int one,two,ttt;

Scanner in = new Scanner(System.in); //创建输入流

System.out.println("请输入第一个数字的大小");
one = in.nextInt();
System.out.println("请输入第二个数字的大小");
two = in.nextInt();

if(one>two)
ttt = two;
else
ttt = one;

while(true) {
if(one%ttt==0 && two%ttt==0)
break;
ttt--;
}
System.out.println("最大公约数为:" + ttt);
}
}