package com.lx.util;import java.util.Scanner;//java.util.Scanner的使用public class H{public static void main(String args[]){Scanner input = new Scanner(System.in);System.out.println("请输入3位自然数:");int num = input.nextInt();int j;System.out.println("小于"+num+"的质数:");for(int i = 2;i<num;i++){ for(j=2;j<i;j++){
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