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Java in a Nutshell

Previous Chapter 30
The java.util Package

30.3 java.util.Date (JDK 1.0)

This class represents dates and times. It lets you work with them in a system-independent way. You can create a Date by specifying the number of milliseconds from the epoch (midnight GMT, January 1st, 1970), or by specifying the year, month, date, and optionally, the hour, minute, and second. Years are specified as the number of years since 1900. If you call the Date constructor with no arguments, the Date is initialized to the current time and date. The instance methods of the class allow you to get and set the various date and time fields, to compare dates and times, and to convert dates to and from string representations.

In Java 1.1, many of the date methods have been deprecated in favor of the methods of the Calendar class.

public class Date extends Object implements Serializable, Cloneable {
    // Public Constructors
            public Date();
            public Date(long date);
        #   public Date(int year, int month, int date);
        #   public Date(int year, int month, int date, int hrs, int min);
        #   public Date(int year, int month, int date, int hrs, int min, int sec);
        #   public Date(String s);
    // Class Methods
        #   public static long UTC(int year, int month, int date, int hrs, int min, int sec);
        #   public static long parse(String s);
    // Public Instance Methods
            public boolean after(Date when);
            public boolean before(Date when);
            public boolean equals(Object obj);  // Overrides Object
        #   public int getDate();
        #   public int getDay();
        #   public int getHours();
        #   public int getMinutes();
        #   public int getMonth();
        #   public int getSeconds();
            public long getTime();
        #   public int getTimezoneOffset();
        #   public int getYear();
            public int hashCode();  // Overrides Object
        #   public void setDate(int date);
        #   public void setHours(int hours);
        #   public void setMinutes(int minutes);
        #   public void setMonth(int month);
        #   public void setSeconds(int seconds);
            public void setTime(long time);
        #   public void setYear(int year);
        #   public String toGMTString();
        #   public String toLocaleString();
            public String toString();  // Overrides Object

Passed To:

Calendar.setTime(), Date.after(), Date.before(), DateFormat.format(), GregorianCalendar.setGregorianChange(), SimpleDateFormat.format(), SimpleTimeZone.inDaylightTime(), TimeZone.inDaylightTime()

Returned By:

Calendar.getTime(), DateFormat.parse(), GregorianCalendar.getGregorianChange(), SimpleDateFormat.parse()

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