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Chapter 30 The java.util Package |
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Chapter 30 The java.util Package |
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This concrete subclass of Calendar implements the "standard" solar calendar with years numbered from the birth of Christ, which is used in most locales throughout the world. You do not typically use this class directly, but instead obtain a Calendar object suitable for the default locale by calling Calendar.getInstance(). See Calendar for details on working with Calendar objects.
There is a discontinuity in the Gregorian calendar that represents the historical switch from the Julian calendar to the Gregorian calendar. By default GregorianCalendar assumes that this switch occurs on October 15, 1582. Most programs need not be concerned with this.
public class GregorianCalendar extends Calendar {
// Public Constructors
public GregorianCalendar();
public GregorianCalendar(TimeZone zone);
public GregorianCalendar(Locale aLocale);
public GregorianCalendar(TimeZone zone, Locale aLocale);
public GregorianCalendar(int year, int month, int date);
public GregorianCalendar(int year, int month, int date, int hour, int minute);
public GregorianCalendar(int year, int month, int date, int hour, int minute, int second);
// Constants
public static final int AD;
public static final int BC;
// Public Instance Methods
public void add(int field, int amount); // Defines Calendar
public boolean after(Object when); // Defines Calendar
public boolean before(Object when); // Defines Calendar
public Object clone(); // Overrides Calendar
public boolean equals(Object obj); // Defines Calendar
public int getGreatestMinimum(int field); // Defines Calendar
public final Date getGregorianChange();
public int getLeastMaximum(int field); // Defines Calendar
public int getMaximum(int field); // Defines Calendar
public int getMinimum(int field); // Defines Calendar
public synchronized int hashCode(); // Overrides Object
public boolean isLeapYear(int year);
public void roll(int field, boolean up); // Defines Calendar
public void setGregorianChange(Date date);
// Protected Instance Methods
protected void computeFields(); // Defines Calendar
protected void computeTime(); // Defines Calendar
}
Object->Calendar(Serializable, Cloneable)->GregorianCalendar
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| java.util.EventObject (JDK 1.1) |  |
java.util.Hashtable (JDK 1.0) |
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