package com.test;

 import java.text.DateFormat;

 import java.text.ParseException;

 import java.text.SimpleDateFormat;

 import java.util.Calendar;

 import java.util.Date;

 import java.util.GregorianCalendar;

 import java.util.Scanner;

 /**

  * 可视化日历程序

  * @author Administrator

  *

  */

 public class VisualCalendar {

         public static void main(String[] args){

             System.out.print("请输入日期（按照格式：2030-3-10）：");

             Scanner scanner=new Scanner(System.in);

             String temp=scanner.nextLine();

             DateFormat df=new SimpleDateFormat("yyyy-MM-dd");

             try {

                 Date date=df.parse(temp);      //字符串转时间

                 Calendar calendar=new GregorianCalendar();

                 calendar.setTime(date);

                 int day=calendar.get(Calendar.DATE);

                 calendar.set(Calendar.DATE, 1);

                 int max=calendar.getActualMaximum(Calendar.DATE);//一个月最多多少天

                 System.out.print("日\t一\t二\t三\t四\t五\t六\n");

                 for(int i=1;i<calendar.get(Calendar.DAY_OF_WEEK);i++){

                     System.out.print("\t");

                 }            

                 for(int i=1;i<=max;i++){

                     if(i==day){

                         System.out.print("*");

                     }

                     System.out.print(i+"\t");

                     int w=calendar.get(Calendar.DAY_OF_WEEK);

                     if(w==Calendar.SATURDAY)

                         System.out.println();

                     calendar.add(Calendar.DATE, 1);  //每打印一次，日期加一

                 }

             } catch (ParseException e) {

                 // TODO Auto-generated catch block

                 e.printStackTrace();

             }

         }

 }