简单日历。

来源：互联网发布：怎样用数据库查询语句编辑：程序博客网时间：2024/05/06 16:56

最近刚刚学了一点点java，学着做了这个简单的小日历。

package net;

import java.util.Scanner;

public class C5 {
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 month = in.nextInt();
  int sum = 0;
  for (int i = 1900; i < year; i++) {
   if (i % 4 == 0 && i % 100 != 0 || i % 400 == 0) {
    sum += 366;
   } else {
    sum += 365;
   }
  }
  for (int i = 1; i < month; i++) {
   if (i == 2) {
    if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
     sum += 29;
    } else {
     sum += 28;
    }
   } else {
    if (i == 4 || i == 6 || i == 9 || i == 11) {
     sum += 30;
    } else {
     sum += 31;
    }
   }
  }
  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");
  }
  for (int i = 1; i <= 30; i++) {
   if (sum % 7 == 6) {
    System.out.print(i + "\n");

   } else {
    System.out.print(i + "\t");
   }
   sum++;
  }
}
}

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