Java初级编程示例：日历小程序

青旅半醒 2022-06-18 04:19 231阅读 0赞

## Java日历小程序 ##

import java.time.*;
    
    public class test1 { 
    
        public static void main(String[] args)
        {
            //
            LocalDate date = LocalDate.now();
            int Month = date.getMonthValue();
            int Today = date.getDayOfMonth();
    
            date = date.minusDays(Today-1);
            DayOfWeek WeekDay = date.getDayOfWeek();
            int Value = WeekDay.getValue();
    
            //输出日历表头，每个星期中间使用制表符
            System.out.println("Mon Tue Wed Thu Fri Sat Sun");
    
            //通过for循环将每月1号之前的空位用制表符缩进，用Value的值来控制
            //需注意此处的空字符是Tab
            for(int i = 1; i < Value; i++)
                System.out.print(" ");
    
            //用while来循环显示每月的每一天
            while(date.getMonthValue() == Month)
            {
    
                //输出对应日期
                System.out.printf("%d", date.getDayOfMonth());
    
                //如果此时输出的日期等于之前获得的当前日期Today，则在日期后加*标识，后边记得加Tab，否则直接Tab
                if(date.getDayOfMonth() == Today)
                    System.out.print("* ");
                else
                    System.out.print(" ");
    
                //给日期加一
                date = date.plusDays(1);
    
                //如果此时星期对应的值为1，即下一个要打印的日期为星期一一列，则回车换行
                if(date.getDayOfWeek().getValue() == 1)
                    System.out.println();
            }
    
        if(date.getDayOfWeek().getValue() != 1)
            System.out.println();
        }
    }

效果如图

![这里写图片描述][SouthEast]

[SouthEast]: /images/20220618/00adf370f29f4af7b960946dc0471f94.png