mycalendar.java

来自「一个十分好的java基础学习的课件」· Java 代码 · 共 21 行

// MyCalendar.java: A subclass of GregorianCalendar
import java.awt.*;
import java.util.*;

public class MyCalendar extends GregorianCalendar
{
  // Find the number of days in a month
  public int daysInMonth()
  {
    switch (get(MONTH))
    {
      case 0: case 2: case 4: case 6: case 7: case 9: case 11:
        return 31;
      case 1: if (isLeapYear(get(YEAR))) return 29;
                else return 28;
      case 3: case 5: case 8: case 10: return 30;
      default: return 0;   
    }
  }
}