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java.lang.Object
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+--java.lang.Number
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+--org.apache.commons.lang.mutable.MutableFloat
A mutable float wrapper.
Float, Serialized Form| Constructor Summary | |
MutableFloat()
Constructs a new MutableFloat with the default value of zero. |
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MutableFloat(float value)
Constructs a new MutableFloat with the specified value. |
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MutableFloat(Number value)
Constructs a new MutableFloat with the specified value. |
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| Method Summary | |
void |
add(float 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 MutableFloat as a double. |
boolean |
equals(Object obj)
Compares this object against some other object. |
float |
floatValue()
Returns the value of this MutableFloat as a float. |
Object |
getValue()
Gets the value as a Float instance. |
int |
hashCode()
Returns a suitable hashcode for this mutable. |
void |
increment()
Increments the value. |
int |
intValue()
Returns the value of this MutableFloat as a int. |
boolean |
isInfinite()
Checks whether the float value is infinite. |
boolean |
isNaN()
Checks whether the float value is the special NaN value. |
long |
longValue()
Returns the value of this MutableFloat as a long. |
void |
setValue(float value)
Sets the value. |
void |
setValue(Object value)
Sets the value from any Number instance. |
void |
subtract(float operand)
Subtracts a value. |
void |
subtract(Number operand)
Subtracts a value. |
Float |
toFloat()
Gets this mutable as an instance of Float. |
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 MutableFloat()
public MutableFloat(float value)
value - a value.public MutableFloat(Number value)
value - a value.NullPointerException - if the object is null| Method Detail |
public Object getValue()
getValue in interface Mutablepublic void setValue(float 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 void increment()
public void decrement()
public void add(float operand)
operand - the value to addpublic void add(Number operand)
operand - the value to addNullPointerException - if the object is nullpublic void subtract(float operand)
operand - the value to addpublic void subtract(Number operand)
operand - the value to addNullPointerException - if the object is nullpublic 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 Float toFloat()
public boolean equals(Object obj)
true if and only if the argument is
not null and is a Float object that represents a float that has the
identical bit pattern to the bit pattern of the float represented by this object. For this
purpose, two float values are considered to be the same if and only if the method
Float.floatToIntBits(float)returns the same int value when applied to each.
Note that in most cases, for two instances of class Float,f1 and f2,
the value of f1.equals(f2) is true if and only if
f1.floatValue() == f2.floatValue()
also has the value true. However, there are two exceptions:
f1 and f2 both represent Float.NaN, then the
equals method returns true, even though Float.NaN==Float.NaN has
the value false.
f1 represents +0.0f while f2 represents -0.0f,
or vice versa, the equal test has the value false, even though
0.0f==-0.0f has the value true.
equals in class Objectobj - the object to be comparedtrue if the objects are the same; false otherwise.Float.floatToIntBits(float)public int hashCode()
hashCode in class Objectpublic int compareTo(Object obj)
compareTo in interface Comparableobj - the mutable to compare topublic String toString()
toString in class Object
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