分享三个Java代码

直接上代码：

package test;

import java.util.Scanner;

public class Test {

	public static void main(String[] args) {
		try (Scanner console = new Scanner(System.in)) {
			System.out.println("请输入三个整数：");
			int a = console.nextInt();
			int b = console.nextInt();
			int c = console.nextInt();
			Test t = new Test();
			String i = t.algorithm(a, b, c);
			System.out.print(i);
			console.close();
		} catch (Exception e) {
			System.out.print("输入的数值不符合规定！");
		}
	}

	public String algorithm(int a, int b, int c) {
		if (a == b) {
			if (b == c) {
				return "三个数都一样！";
			} else {
				return "第三个数不一样！";
			}
		} else {
			if (b == c) {
				return "第一个数不一样！";
			} else {
				if (a != c) {
					return "三个数都不一样！";
				} else {
					return "第二个数不一样！";
				}
			}
		}

	}
}

package test;

import java.util.Scanner;

public class Test_2 {

	static public void main(String[] args) {
		try (Scanner sc = new Scanner(System.in);) {
			System.out.println("输入两个正整数：");
			int data1 = sc.nextInt();
			int data2 = sc.nextInt();
			Test_2 t = new Test_2();
			int[] i = t.algorithm(data1, data2);
			System.out.println("最大公因数是" + i[0]);
			System.out.println("最小公倍数是" + i[1]);
			sc.close();
		} catch (Exception e) {
			System.out.println("输入的数值不符合规定！");
		}
	}

	public int[] algorithm(int data1, int data2) {
		int temp, max_divisor, min_multiple;

		// 判断两数的大小
		if (data1 > data2) {
			temp = data2;
			data2 = data1;
			data1 = temp;
		}
		max_divisor = 1;
		min_multiple = data1 * data2;
		// 求最大公因数
		if (data2 % data1 == 0)
			max_divisor = data1;
		else {
			for (int i = 1; i < data1; i++) {
				if (data1 % i == 0 && data2 % i == 0)
					max_divisor = i;
			}
		}
		// 求最小公倍数
		for (int i = data2; i < min_multiple; i++) {
			if (i % data1 == 0 && i % data2 == 0)
				min_multiple = i;
		}
		int[] a = { max_divisor, min_multiple };
		return a;
	}

}

package test;

import java.util.Calendar;

public class Test_3 {

	public static void main(String[] args) {
		Calendar c = Calendar.getInstance();
		// 北京时间
		int year = c.get(Calendar.YEAR);
		int month = (c.get(Calendar.MONTH) + 1);
		int ri = c.get(Calendar.DATE);
		int hour = c.get(Calendar.HOUR);
		int min = c.get(Calendar.MINUTE);
		int miao = c.get(Calendar.SECOND);
		int haomiao = c.get(Calendar.MILLISECOND);
		System.out.println(
				"北京时间：" + year + "年" + month + "月" + ri + "日 " + hour + "时" + min + "分" + miao + "秒" + haomiao + "毫秒");
	}

}