1 package cn.bjsxt.dateclass; 2  3 import java.security.SignatureException; 4 import java.text.DateFormat; 5 import java.text.ParseException; 6 import java.text.SimpleDateFormat; 7 import java.util.Calendar; 8 import java.util.Date; 9 import java.util.GregorianCalendar;10 import java.util.Scanner;11 12 /**13  * 可视化日历程序14  * 15  * @author Administrator16  *17  */18 public class VisualCalendar {19     public static void main(String[] args) {20         System.out.println("请输入日期，按照格式:(2030-3-10)");21         Scanner scanner = new Scanner(System.in);22         String temp = scanner.nextLine();23         24         DateFormat format = new SimpleDateFormat("yyyy-MM-dd");25         try {26             Date date = format.parse(temp);27             Calendar calendar = new GregorianCalendar();28             calendar.setTime(date);29             int day = calendar.get(Calendar.DATE);30             calendar.set(Calendar.DATE,1);31 //            //每个月的日期是 周几32 //            System.out.println(calendar.get(Calendar.DAY_OF_WEEK));33 //            //每月的最大天数34 //            System.out.println(calendar.getActualMaximum(Calendar.DATE));35             36             int maxDate = calendar.getActualMaximum(Calendar.DATE);37             System.out.println("日\t一\t二\t三\t四\t五\t六");38             39             for(int i=1;i