1~100以内的质数和

package com.zhidi.loop;

public class Zhishuhe {
public static void main(String[] args){
int sum=0;
int a;
int b;
for(a=1;a<=100;a++){
for(b=2;b<=a;b++){
if(a%b==0&&a!=b){
break;
}else if(a%b==0&&a==b){
sum+=a;
}

}
}
System.out.println(sum);
}

}