代码代码:输入两个正整数m和n，求其最大公约数和最小公倍数。15 20 5

import java.util.Scanner;

//输入两个正整数m和n，求其最大公约数和最小公倍数。15  20    5

public class Test {

	public static void main(String[] args) {

		int n = inNumber();

		int m = inNumber();

		int yue = 1;

		int bei = m*n;

			for (int i = 2; i < n*m; i++) {

				if (m % i == 0 && n % i == 0) {

					yue = yue * i;

					m = m/i;

					n = n/i;

					i=1;

				}

			}

		bei = bei / yue;

		System.out.println(yue);

		System.out.println(bei);

	}

	public static int inNumber() {

		Scanner sc = new Scanner(System.in);

		int n = 0;

		System.out.print("请输入整数:");

		while (true) {

			String s = sc.nextLine();

			String regex = "\\d+";

			if (s.matches(regex)) {

				n = Integer.parseInt(s);

				break;

			} else {

				System.out.print("请重新输入整数:");

			}

		}

		return n;

	}

}