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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Number()
Empty default constructor.
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Public Methods |
byte
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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
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<?>
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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.