 Known Direct Subclasses
| AtomicInteger |
An int value that may be updated atomically. |
| AtomicLong |
A long value that may be updated atomically. |
| BigDecimal |
This class represents immutable integer numbers of arbitrary length. |
| BigInteger |
An immutable signed integer of arbitrary magnitude. |
| Byte |
The wrapper for the primitive type byte. |
| Double |
The wrapper for the primitive type double. |
| Float |
The wrapper for the primitive type float. |
| Integer |
The wrapper for the primitive type int. |
| Long |
The wrapper for the primitive type long. |
| Short |
The wrapper for the primitive type short. |
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Summary
| Public Constructors |
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|
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Number()
Empty default constructor.
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| Public Methods |
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byte
|
byteValue()
Returns this object's value as a byte.
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abstract
double
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doubleValue()
Returns this object's value as a double.
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abstract
float
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floatValue()
Returns this object's value as a float.
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abstract
int
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intValue()
Returns this object's value as an int.
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abstract
long
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longValue()
Returns this object's value as a long.
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short
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shortValue()
Returns this object's value as a short.
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[Expand]
Inherited Methods |
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From class
java.lang.Object
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Object
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clone()
Creates and returns a copy of this Object.
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boolean
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equals(Object o)
Compares this instance with the specified object and indicates if they
are equal.
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void
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finalize()
Invoked when the garbage collector has detected that this instance is no longer reachable.
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final
Class<?>
|
getClass()
Returns the unique instance of Class that represents this
object's class. |
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int
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hashCode()
Returns an integer hash code for this object.
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final
void
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notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
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final
void
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notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
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String
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toString()
Returns a string containing a concise, human-readable description of this
object.
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final
void
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wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
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final
void
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wait(long millis, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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final
void
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wait(long millis)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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Public Constructors
public
Number
()
Empty default constructor.
Public Methods
public
byte
byteValue
()
Returns this object's value as a byte. Might involve rounding and/or
truncating the value, so it fits into a byte.
Returns
- the primitive byte value of this object.
public
abstract
double
doubleValue
()
Returns this object's value as a double. Might involve rounding.
Returns
- the primitive double value of this object.
public
abstract
float
floatValue
()
Returns this object's value as a float. Might involve rounding.
Returns
- the primitive float value of this object.
public
abstract
int
intValue
()
Returns this object's value as an int. Might involve rounding and/or
truncating the value, so it fits into an int.
Returns
- the primitive int value of this object.
public
abstract
long
longValue
()
Returns this object's value as a long. Might involve rounding and/or
truncating the value, so it fits into a long.
Returns
- the primitive long value of this object.
public
short
shortValue
()
Returns this object's value as a short. Might involve rounding and/or
truncating the value, so it fits into a short.
Returns
- the primitive short value of this object.
