public class MutableDouble extends java.lang.Number implements java.lang.Comparable, Mutable
double
wrapper.Double
,
Serialized FormConstructor and Description |
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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(java.lang.Number value)
Constructs a new MutableDouble with the specified value.
|
MutableDouble(java.lang.String value)
Constructs a new MutableDouble parsing the given string.
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Modifier and Type | Method and Description |
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void |
add(double operand)
Adds a value to the value of this instance.
|
void |
add(java.lang.Number operand)
Adds a value to the value of this instance.
|
int |
compareTo(java.lang.Object obj)
Compares this mutable to another in ascending order.
|
void |
decrement()
Decrements the value.
|
double |
doubleValue()
Returns the value of this MutableDouble as a double.
|
boolean |
equals(java.lang.Object obj)
Compares this object against the specified object.
|
float |
floatValue()
Returns the value of this MutableDouble as a float.
|
java.lang.Object |
getValue()
Gets the value as a Double instance.
|
int |
hashCode()
Returns a suitable hash code for this mutable.
|
void |
increment()
Increments the value.
|
int |
intValue()
Returns the value of this MutableDouble as an int.
|
boolean |
isInfinite()
Checks whether the double value is infinite.
|
boolean |
isNaN()
Checks whether the double value is the special NaN value.
|
long |
longValue()
Returns the value of this MutableDouble as a long.
|
void |
setValue(double value)
Sets the value.
|
void |
setValue(java.lang.Object value)
Sets the value from any Number instance.
|
void |
subtract(double operand)
Subtracts a value from the value of this instance.
|
void |
subtract(java.lang.Number operand)
Subtracts a value from the value of this instance.
|
java.lang.Double |
toDouble()
Gets this mutable as an instance of Double.
|
java.lang.String |
toString()
Returns the String value of this mutable.
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public MutableDouble()
public MutableDouble(double value)
value
- the initial value to storepublic MutableDouble(java.lang.Number value)
value
- the initial value to store, not nulljava.lang.NullPointerException
- if the object is nullpublic MutableDouble(java.lang.String value) throws java.lang.NumberFormatException
value
- the string to parse, not nulljava.lang.NumberFormatException
- if the string cannot be parsed into a doublepublic java.lang.Object getValue()
public void setValue(double value)
value
- the value to setpublic void setValue(java.lang.Object value)
public boolean isNaN()
public boolean isInfinite()
public void increment()
public void decrement()
public void add(double operand)
operand
- the value to addpublic void add(java.lang.Number operand)
operand
- the value to add, not nulljava.lang.NullPointerException
- if the object is nullpublic void subtract(double operand)
operand
- the value to subtract, not nullpublic void subtract(java.lang.Number operand)
operand
- the value to subtract, not nulljava.lang.NullPointerException
- if the object is nullpublic int intValue()
intValue
in class java.lang.Number
public long longValue()
longValue
in class java.lang.Number
public float floatValue()
floatValue
in class java.lang.Number
public double doubleValue()
doubleValue
in class java.lang.Number
public java.lang.Double toDouble()
public boolean equals(java.lang.Object obj)
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
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.
equals
in class java.lang.Object
obj
- the object to compare with, null returns falsetrue
if the objects are the same; false
otherwise.public int hashCode()
hashCode
in class java.lang.Object
public int compareTo(java.lang.Object obj)
compareTo
in interface java.lang.Comparable
obj
- the other mutable to compare to, not nulljava.lang.ClassCastException
- if the argument is not a MutableDoublepublic java.lang.String toString()
toString
in class java.lang.Object
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