package com.lovo;/** * 最大公约数和最小公倍数 *  @author 文波 *  */import java.util.Scanner;public class Test08 {    public static void main(String[] args) {        Scanner sc = new Scanner(System.in);        System.out.print("请输入数N：");        int n = sc.nextInt();        System.out.print("请输入数M：");        int m = sc.nextInt();        int temp, gongyue = 0;                if (n > m){            temp =  m;            m = n;            n = temp;        }        for (int i = 1; i <= n; i++){            if (n % i == 0 && m % i ==0){                gongyue= i;            }        }        System.out.println("最大公约数为：" + gongyue);        System.out.println("最大公倍数为：" + m*n/gongyue );    }}

package day;/** * 100内的素数 * @author 文波 * */public class Text9 {    public static void main(String[] args) {        System.out.print("素数有：");        for (int i = 2; i <= 100; i++){            int count = 1;            for (int j = 2; j <= i/2 ; j++){                if (i % j == 0){                    count = 0;                    break;                }            }            if (count == 1){                System.out.printf("%d  ", i);            }        }    }}

package day;/** * 百钱买鸡 * @author 文波 * */public class Test10 {    public static void main(String[] args) {        int gongji, muji, xiaoji;        for (gongji = 0; gongji <= 20; gongji++){            for (muji = 0; muji <= 33; muji++){                xiaoji = 100 - gongji - muji;                if (xiaoji % 3 == 0 && 5 * gongji + 3 * muji + xiaoji / 3 == 100 ){                    System.out.printf("公鸡为：%d只\t母鸡为：%d只\t小鸡为：%d只\n", gongji, muji, xiaoji);                }            }                    }            }}