求0~100质数

public class Lian{
    public static void main(String[] args){
        int n =0;
        for(int a = 2;a<=100;a++){
            int b = 2;
            for(b=2;b<a;b++){
                if(a%b==0){
                    break;
                }
            }
            if (b==a){
                n++;
                System.out.println(a);
            }
            
        }
        System.out.println("总数是："+n);
    }
}