Java练习项目——打印本月日期

Java练习小项目：

打印本月日期：

package com.javatest.datetest;

import java.time.*;

/*
 * @version 1.0
 * @author Tan name
 * 该类功能可实现打印本月的日期
 */
public class DateTest {

    public static void main(String[] args) {
        //创建date对象
        LocalDate date = LocalDate.now();
        //获取月份
        int month = date.getMonthValue();
        //获取日期
        int today = date.getDayOfMonth();

        //将日期调整为每月的第一天
        date = date.minusDays(today - 1);
        //创建weekday对象
        DayOfWeek weekday = date.getDayOfWeek();
        //返回获取1-7的数字代表礼拜一到礼拜天
        int value = weekday.getValue();

        System.out.println("Mon Tue Wed Thu Fri Sat Sun");
        for (int i=1;i<value;i++) {
            System.out.print("    ");
        }
        while (date.getMonthValue() == month) {
            System.out.printf("%3d",date.getDayOfMonth());
            if (date.getDayOfMonth() == today) {
                System.out.print("*");
            }
            else {
                System.out.print(" ");
            }
            date = date.plusDays(1);
            if (date.getDayOfWeek().getValue() == 1) {
                System.out.println();
            }
        }
        if (date.getDayOfWeek().getValue() != 1) {
            System.out.println();
        }
    }

}