|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
java.lang.Object
|
+--java.lang.Number
|
+--org.apache.commons.lang.mutable.MutableDouble
A mutable double wrapper.
Double, Serialized Form| Constructor Summary | |
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. |
|
| Method Summary | |
void |
add(double operand)
Adds a value. |
void |
add(Number operand)
Adds a value. |
int |
compareTo(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(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. |
void |
increment()
Increments the value. |
int |
intValue()
Returns the value of this MutableDouble as a 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(Object value)
Sets the value from any Number instance. |
void |
subtract(double operand)
Subtracts a value. |
void |
subtract(Number operand)
Subtracts a value. |
Double |
toDouble()
Gets this mutable as an instance of Double. |
String |
toString()
Returns the String value of this mutable. |
| Methods inherited from class java.lang.Number |
byteValue, shortValue |
| Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
public MutableDouble()
public MutableDouble(double value)
value - a value.public MutableDouble(Number value)
value - a value.NullPointerException - if the object is null| Method Detail |
public Object getValue()
getValue in interface Mutablepublic void setValue(double value)
value - the value to setpublic void setValue(Object value)
setValue in interface Mutablevalue - the value to setNullPointerException - if the object is nullClassCastException - if the type is not a Numberpublic int intValue()
intValue in class Numberpublic long longValue()
longValue in class Numberpublic float floatValue()
floatValue in class Numberpublic double doubleValue()
doubleValue in class Numberpublic boolean isNaN()
public boolean isInfinite()
public Double toDouble()
public void increment()
public void decrement()
public void add(double operand)
operand - the value to addpublic void add(Number operand)
operand - the value to addNullPointerException - if the object is nullpublic void subtract(double operand)
operand - the value to addpublic void subtract(Number operand)
operand - the value to addNullPointerException - if the object is nullpublic boolean equals(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 Objectobj - the object to compare with.true if the objects are the same; false otherwise.public int hashCode()
hashCode in class Objectpublic int compareTo(Object obj)
compareTo in interface Comparableobj - the mutable to compare toClassCastException - if the argument is not a MutableDoublepublic String toString()
toString in class Object
|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||