public class Date extends Object
This class has been subset for the J2ME based on the JDK 1.3 Date class. Many methods and variables have been pruned, and other methods simplified, in an effort to reduce the size of this class.
Although the Date class is intended to reflect coordinated universal time (UTC), it may not do so exactly, depending on the host environment of the Java Virtual Machine. Nearly all modern operating systems assume that 1 day = 24x60x60 = 86400 seconds in all cases. In UTC, however, about once every year or two there is an extra second, called a "leap second." The leap second is always added as the last second of the day, and always on December 31 or June 30. For example, the last minute of the year 1995 was 61 seconds long, thanks to an added leap second. Most computer clocks are not accurate enough to be able to reflect the leap-second distinction.
| Constructor and Description |
|---|
Date()
Allocates a
Date object and initializes it to
represent the current time specified number of milliseconds since the
standard base time known as "the epoch", namely January 1,
1970, 00:00:00 GMT. |
Date(long date)
Allocates a
Date object and initializes it to
represent the specified number of milliseconds since the
standard base time known as "the epoch", namely January 1,
1970, 00:00:00 GMT. |
| Modifier and Type | Method and Description |
|---|---|
boolean |
equals(Object obj)
Compares two dates for equality.
|
long |
getTime()
Returns the number of milliseconds since January 1, 1970, 00:00:00 GMT
represented by this Date object.
|
int |
hashCode()
Returns a hash code value for this object.
|
void |
setTime(long time)
Sets this Date object to represent a point in time that is
time milliseconds after January 1, 1970 00:00:00 GMT.
|
String |
toString()
Converts this
Date object to a String
of the form:
|
public Date()
Date object and initializes it to
represent the current time specified number of milliseconds since the
standard base time known as "the epoch", namely January 1,
1970, 00:00:00 GMT.System.currentTimeMillis()public Date(long date)
Date object and initializes it to
represent the specified number of milliseconds since the
standard base time known as "the epoch", namely January 1,
1970, 00:00:00 GMT.date - the milliseconds since January 1, 1970, 00:00:00 GMT.System.currentTimeMillis()public long getTime()
setTime(long)public void setTime(long time)
time - the number of milliseconds.getTime()public boolean equals(Object obj)
true if and only if the argument is
not null and is a Date object that
represents the same point in time, to the millisecond, as this object.
Thus, two Date objects are equal if and only if the
getTime method returns the same long
value for both.
public int hashCode()
getTime()
method. That is, the hash code is the value of the expression:
(int)(this.getTime()^(this.getTime() >>> 32))
hashCode in class ObjectObject.equals(java.lang.Object),
Hashtablepublic String toString()
Date object to a String
of the form:
where:dow mon dd hh:mm:ss zzz yyyy
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