Package dsa

Class Date

  • All Implemented Interfaces:
    Comparable<Date>
    public class Date
extends Object
implements Comparable<Date>
    An immutable data type to represent a date (day, month, and year).

    • Constructor Summary

      Constructors 
      Constructor Description
      Date​(int month, int day, int year)
      Constructs a date from month, day, and year.
      Date​(String s)
      Constructs a date from a string s of the form the "MM/DD/YYYY".

    • Constructor Detail

      • Date

        public Date​(int month,
            int day,
            int year)
        Constructs a date from month, day, and year.
        Parameters:
        month - the month (between 1 and 12).
        day - the day (between 1 and 28-31, depending on the month).
        year - the year.

      • Date

        public Date​(String s)
        Constructs a date from a string s of the form the "MM/DD/YYYY".
        Parameters:
        s - the string.

    • Method Detail

      • month

        public int month()
        Returns the month (an integer between 1 and 12).
        Returns:
        the month (an integer between 1 and 12).

      • day

        public int day()
        Returns the day (an integer between 1 and 31).
        Returns:
        the day (an integer between 1 and 31).

      • year

        public int year()
        Returns the year.
        Returns:
        the year.

      • next

        public Date next()
        Returns the next date in the calendar.
        Returns:
        the next date in the calendar.

      • isBefore

        public boolean isBefore​(Date other)
        Returns true if this date is before other, and false otherwise.
        Parameters:
        other - the other date.
        Returns:
        true if this date is before other, and false otherwise.

      • isAfter

        public boolean isAfter​(Date other)
        Returns true if this date is after other, and false otherwise.
        Parameters:
        other - the other date.
        Returns:
        true if this date is after other, and false otherwise.

      • equals

        public boolean equals​(Object other)
        Returns true if this date is same as other, and false otherwise.
        Overrides:
        equals in class Object
        Parameters:
        other - the other date.
        Returns:
        true if this date is same as other, and false otherwise.

      • hashCode

        public int hashCode()
        Returns a hash code for this date.
        Overrides:
        hashCode in class Object
        Returns:
        a hash code for this date

      • toString

        public String toString()
        Returns a string representation of this date.
        Overrides:
        toString in class Object
        Returns:
        a string representation of this date.

      • compareTo

        public int compareTo​(Date other)
        Returns a chronological comparison of this date with other.
        Specified by:
        compareTo in interface Comparable<Date>
        Parameters:
        other - the other date.
        Returns:
        a chronological comparison of this date with other.

      • main

        public static void main​(String[] args)
        Unit tests the data type.
        Parameters:
        args - the command-line arguments.