JAVA 输入年份月份打印该月的日历

Posted 2022-07-28 zhangyufeng0126

请输入年份：yyyy

请输入月份：MM

打印出yyyy-MM日历

<span style="font-size:18px;">package qq;

import java.util.Calendar;
import java.util.Scanner;

public class time 

	/**
	 * @param args
	 */
	public static void main(String[] args) 
		// TODO Auto-generated method stub
		Calendar calendar = Calendar.getInstance();
		int count = 1;
		int days;
		Scanner sc=new Scanner(System.in);
		System.out.print("请输入年份");
		int year = sc.nextInt();
		System.out.print("请输入月份");
		int m = sc.nextInt();
		int month=m-1;
		calendar.set(Calendar.YEAR, year);
		calendar.set(Calendar.MONTH, month);
		calendar.set(Calendar.DATE, 0);
		if (((year%4==0&&year%100!=0)||(year%400==0))&&m==2) 
		 days=29;
		else
		 days = chooseMonth(month + 1);
		System.out.println(year + "年" + (month + 1) + "月的日历：");
		System.out.println("星期日\\t星期一\\t星期二\\t星期三\\t星期四\\t星期五\\t星期六");
		while (count <=days) 
			calendar.add(Calendar.DAY_OF_MONTH, 1);
			int day = calendar.getTime().getDay();   //某个月从第几天开始

			if (count ==1) 
				for (int i = 0; i < day; i++) 
					System.out.print("\\t");
				
			
			if (day == 0) 
				System.out.println();        //出现星期天  就换行，外国人周天是一个周开始
			
			System.out.print(calendar.getTime().getDate() + "\\t");  //每月多少号
			count++;

		

	

	public static int chooseMonth(int m) 
		int days = 0;
		switch (m) 
		case 2:
			days = 28;
			break;

		case 1:
		case 3:
		case 5:
		case 7:
		case 8:
		case 10:
		case 12:
			days = 31;
			break;

		case 4:
		case 6:
		case 9:
		case 11:
			days = 30;
			break;
		default:
			days = 0;
		
		return days;
	
</span>

作者：冲天之峰                 20160527