JAVA课程设计天数计算器（输入年月日等到是当年的第几天）Would文档

最新问答

• 孤星泪新民

  // 你试试这个能不能实现
  import java.io.*;
  
  public class DateCal {
  static public void main(String[] args) {
  int year, month, day;
  int days = 0;
  boolean luinian = false;
  System.out.print("input the year:");
  year = IO.getInt();
  System.out.print("input the month:");
  month = IO.getInt();
  System.out.print("input the day:");
  day = IO.getInt();
  if (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0)) {
  luinian = true;
  }
  for (int i = 1; i < month; i++) {
  switch (i) {
  case 1:
  case 3:
  case 5:
  case 7:
  case 8:
  case 10:
  case 12:
  days += 31;
  break;
  case 2:
  days += 28;
  break;
  case 4:
  case 6:
  case 9:
  case 11:
  days += 30;
  break;
  }
  }
  if (luinian && month > 2) {
  days++;
  }
  days += day;
  System.out.println(year + "年" + month + "月" + day + "日是" + year + "的第"
  + days + "天");
  }
  }
  
  class IO {
  
  public static int getInt() {
  DataInputStream dis = new DataInputStream(System.in);
  int value = 0;
  try {
  @SuppressWarnings("deprecation")
  String str = dis.readLine();
  value = Integer.parseInt(str);
  
  } catch (IOException e) {
  e.printStackTrace();
  }
  return value;
  }
  }

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