java输入日期如何编写可视化日历代码示例

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import java.util.GregorianCalendar;

import java.util.Scanner;

public class VisibleCalendarList {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("请输入一个时间（xxxx-xx-xx）");
String str = input.next();
System.out.println("该月份的日历表如下：");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
try {
Date date = df.parse(str);
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.set(Calendar.DATE, 1);
int firstdate = calendar.get(Calendar.DAY_OF_WEEK);
int maxDate = calendar.getActualMaximum(Calendar.DATE);
System.out.print("日\t一\t二\t三\t四\t五\t六\n");
for (int i = 1; i < firstdate; i++) {
System.out.print('\t');
}
for (int i = 1; i <= maxDate; i++) {
System.out.print(i + "\t");
int dayOfWeek=calendar.get(Calendar.DAY_OF_WEEK);
if (dayOfWeek==Calendar.SATURDAY) {
System.out.println();
}
calendar.add(Calendar.DATE, 1);
}
} catch (ParseException e) {
e.printStackTrace();
}
}

}package com.laynef.calendarlist;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import java.util.GregorianCalendar;

import java.util.Scanner;

public class VisibleCalendarList {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("请输入一个时间（xxxx-xx-xx）");
String str = input.next();
System.out.println("该月份的日历表如下：");
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
try {
Date date = df.parse(str);
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.set(Calendar.DATE, 1);
int firstdate = calendar.get(Calendar.DAY_OF_WEEK);
int maxDate = calendar.getActualMaximum(Calendar.DATE);
System.out.print("日\t一\t二\t三\t四\t五\t六\n");
for (int i = 1; i < firstdate; i++) {
System.out.print('\t');
}
for (int i = 1; i <= maxDate; i++) {
System.out.print(i + "\t");
int dayOfWeek=calendar.get(Calendar.DAY_OF_WEEK);
if (dayOfWeek==Calendar.SATURDAY) {
System.out.println();
}
calendar.add(Calendar.DATE, 1);
}
} catch (ParseException e) {
e.printStackTrace();
}
}

}