java找区间内的素数

package com.lu;

import java.util.Scanner;

public class Text5 {//找素数

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("请输入范围找素数");
        primeNumber(input.nextInt(), input.nextInt());
    }
    public static void primeNumber(int a,int b){//找素数
        for (int i = a; i <= b; i++) {
            int count = 0;
            for (int j = 2; j <= i/2; j++) {
                if (i%j==0){
                    count++;
                    break;
                }
            }
            if (count!=1){
                System.out.println(i);
            }
        }
    }
}