java项目日历表

根据输入的年份和月份打印当前月日历

代码

import java.util.Scanner;

public class Main
{
    public static void main(String[] args)
    {
        Scanner in  = new Scanner(System.in);
        System.out.println("请输入年份");
        int year=in.nextInt();
        System.out.println("请输入月份");
        int  mouth =in.nextInt();
        int sum=0;

        for(int i=1900;i<year;i++)
        {
            if(i%4==0&&i%100!=0||i%400==0)
            {
                sum=sum+366;
            }
            else
            {
                sum=sum+365;
            }
        }

        for(int i=1;i<mouth;i++)
        {
            if(i==2)
            {
                if(year%4==0&&year%100!=0||year%400==0)
                {
                    sum=sum+29;
                }
                else
                {
                    sum=sum+28;
                }
            }
            else
            {
                if(i==4||i==6||i==9)
                {
                    sum=sum+30;
                }
                else
                {
                    sum=sum+31;
                }
            }
        }
        sum=sum+1;
        int wekday= sum%7;
        System.out.println("日\t一\t二\t三\t四\t五\t六");
        for(int i=1;i<=wekday;i++)
        {
            System.out.print("\t");//注意不要换行
        }
        for(int i=1;i<=30;i++)
        {
            if(sum%7==6)
            {
                System.out.print(i+"\n");
            }
            else
            {
                System.out.print(i+"\t");
            }
            sum=sum+1;
        }
    }
}