2003年秋浙江省计算机等级考试二级C 编程题(2) （Java代码）

解题思路:





注意事项:





参考代码:

import java.util.Scanner;

public class Main {

        public static int isprime(int X){

                int flag = 0 ; 

                for(int i=2;i<=X;i++){

                        if(X%i==0&&X!=i)

                                break;

                        else if(i==X)

                                flag = 1 ;

                }

        return flag;

        }

        public static void main(String[] arg){

                Scanner sc = new Scanner(System.in);

                int m = sc.nextInt();

                int n = sc.nextInt();

                int sum = 0;

               for(int X=m;X<=n;X++){

                        if(isprime(X)==1)

                                sum+=X;

                }

                System.out.print(sum);

        }

}