org.apache.commons.lang.mutable
public class MutableDouble extends Number implements Comparable, Mutable
double
wrapper.
Since: 2.1
Version: $Id: MutableDouble.java 161243 2005-04-14 04:30:28Z ggregory $
See Also: Double
Constructor Summary | |
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MutableDouble()
Constructs a new MutableDouble with the default value of zero. | |
MutableDouble(double value)
Constructs a new MutableDouble with the specified value.
| |
MutableDouble(Number value)
Constructs a new MutableDouble with the specified value.
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Method Summary | |
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int | compareTo(Object obj)
Compares this mutable to another in ascending order.
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double | doubleValue()
Returns the value of this MutableDouble as a double.
|
boolean | equals(Object obj)
Compares this object against the specified object. |
float | floatValue()
Returns the value of this MutableDouble as a float.
|
Object | getValue()
Gets the value as a Double instance.
|
int | hashCode()
Returns a suitable hashcode for this mutable.
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int | intValue()
Returns the value of this MutableDouble as a int.
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boolean | isInfinite()
Checks whether the double value is infinite.
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boolean | isNaN()
Checks whether the double value is the special NaN value.
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long | longValue()
Returns the value of this MutableDouble as a long.
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void | setValue(double value)
Sets the value.
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void | setValue(Object value)
Sets the value from any Number instance.
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String | toString()
Returns the String value of this mutable.
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Parameters: value a value.
Parameters: value a value.
Throws: NullPointerException if the object is null
Parameters: obj the mutable to compare to
Returns: negative if this is less, zero if equal, positive if greater
Throws: ClassCastException if the argument is not a MutableDouble
Returns: the numeric value represented by this object after conversion to type double.
true
if and only if the argument
is not null
and is a Double
object that represents a double that has the identical
bit pattern to the bit pattern of the double represented by this object. For this purpose, two
double
values are considered to be the same if and only if the method
{@link Double#doubleToLongBits(double)}returns the same long value when applied to each.
Note that in most cases, for two instances of class Double
,d1
and d2
,
the value of d1.equals(d2)
is true
if and only if
d1.doubleValue() == d2.doubleValue()
also has the value true
. However, there are two exceptions:
d1
and d2
both represent Double.NaN
, then the
equals
method returns true
, even though Double.NaN==Double.NaN
has
the value false
.
d1
represents +0.0
while d2
represents -0.0
,
or vice versa, the equal
test has the value false
, even though
+0.0==-0.0
has the value true
. This allows hashtables to operate properly.
Parameters: obj the object to compare with.
Returns: true
if the objects are the same; false
otherwise.
Returns: the numeric value represented by this object after conversion to type float.
Returns: the value as a Double
Returns: a suitable hashcode
Returns: the numeric value represented by this object after conversion to type int.
Returns: true if infinite
Returns: true if NaN
Returns: the numeric value represented by this object after conversion to type long.
Parameters: value the value to set
Parameters: value the value to set
Throws: NullPointerException if the object is null ClassCastException if the type is not a {@link Number}
Returns: the mutable value as a string