MutableFloat (Apache Commons Lang 3.2 API)

java.lang.Object
- java.lang.Number
- - org.apache.commons.lang3.mutable.MutableFloat

All Implemented Interfaces:

Serializable, Comparable<MutableFloat>, Mutable<Number>
```
public class MutableFloat
extends Number
implements Comparable<MutableFloat>, Mutable<Number>
```
A mutable float wrapper.
Note that as MutableFloat does not extend Float, it is not treated by String.format as a Float parameter.

Since:

2.1

Version:

$Id: MutableFloat.java 1436770 2013-01-22 07:09:45Z ggregory $

See Also:
Float, Serialized Form

Constructor Summary

Constructors
Constructor and Description
`MutableFloat()` Constructs a new MutableFloat with the default value of zero.
`MutableFloat(float value)` Constructs a new MutableFloat with the specified value.
`MutableFloat(Number value)` Constructs a new MutableFloat with the specified value.
`MutableFloat(String value)` Constructs a new MutableFloat parsing the given string.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(float operand)` Adds a value to the value of this instance.
`void`	`add(Number operand)` Adds a value to the value of this instance.
`int`	`compareTo(MutableFloat other)` 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.
`Float`	`getValue()` Gets the value as a Float instance.
`int`	`hashCode()` Returns a suitable hash code for this mutable.
`void`	`increment()` Increments the value.
`int`	`intValue()` Returns the value of this MutableFloat as an 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(Number value)` Sets the value from any Number instance.
`void`	`subtract(float operand)` Subtracts a value from the value of this instance.
`void`	`subtract(Number operand)` Subtracts a value from the value of this instance.
`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
  - MutableFloat
```
public MutableFloat()
```
    Constructs a new MutableFloat with the default value of zero.
  - MutableFloat
```
public MutableFloat(float value)
```
    Constructs a new MutableFloat with the specified value.
    
    Parameters:
    value - the initial value to store
  - MutableFloat
```
public MutableFloat(Number value)
```
    Constructs a new MutableFloat with the specified value.
    
    Parameters:
    value - the initial value to store, not null
    
    Throws:
    
    NullPointerException - if the object is null
  - MutableFloat
```
public MutableFloat(String value)
             throws NumberFormatException
```
    Constructs a new MutableFloat parsing the given string.
    
    Parameters:
    value - the string to parse, not null
    
    Throws:
    
    NumberFormatException - if the string cannot be parsed into a float
    Since:
    
    2.5
- Method Detail
  - getValue
```
public Float getValue()
```
    Gets the value as a Float instance.
    
    Specified by:
    
    getValue in interface Mutable<Number>
    
    Returns:
    the value as a Float, never null
  - setValue
```
public void setValue(float value)
```
    Sets the value.
    
    Parameters:
    value - the value to set
  - setValue
```
public void setValue(Number value)
```
    Sets the value from any Number instance.
    
    Specified by:
    
    setValue in interface Mutable<Number>
    
    Parameters:
    value - the value to set, not null
    
    Throws:
    
    NullPointerException - if the object is null
  - isNaN
```
public boolean isNaN()
```
    Checks whether the float value is the special NaN value.
    
    Returns:
    true if NaN
  - isInfinite
```
public boolean isInfinite()
```
    Checks whether the float value is infinite.
    
    Returns:
    true if infinite
  - increment
```
public void increment()
```
    Increments the value.
    
    Since:
    
    Commons Lang 2.2
  - decrement
```
public void decrement()
```
    Decrements the value.
    
    Since:
    
    Commons Lang 2.2
  - add
```
public void add(float operand)
```
    Adds a value to the value of this instance.
    
    Parameters:
    operand - the value to add, not null
    Since:
    
    Commons Lang 2.2
  - add
```
public void add(Number operand)
```
    Adds a value to the value of this instance.
    
    Parameters:
    operand - the value to add, not null
    
    Throws:
    
    NullPointerException - if the object is null
    Since:
    
    Commons Lang 2.2
  - subtract
```
public void subtract(float operand)
```
    Subtracts a value from the value of this instance.
    
    Parameters:
    operand - the value to subtract
    Since:
    
    Commons Lang 2.2
  - subtract
```
public void subtract(Number operand)
```
    Subtracts a value from the value of this instance.
    
    Parameters:
    operand - the value to subtract, not null
    
    Throws:
    
    NullPointerException - if the object is null
    Since:
    
    Commons Lang 2.2
  - intValue
```
public int intValue()
```
    Returns the value of this MutableFloat as an int.
    
    Specified by:
    
    intValue in class Number
    
    Returns:
    the numeric value represented by this object after conversion to type int.
  - longValue
```
public long longValue()
```
    Returns the value of this MutableFloat as a long.
    
    Specified by:
    
    longValue in class Number
    
    Returns:
    the numeric value represented by this object after conversion to type long.
  - floatValue
```
public float floatValue()
```
    Returns the value of this MutableFloat as a float.
    
    Specified by:
    
    floatValue in class Number
    
    Returns:
    the numeric value represented by this object after conversion to type float.
  - doubleValue
```
public double doubleValue()
```
    Returns the value of this MutableFloat as a double.
    
    Specified by:
    
    doubleValue in class Number
    
    Returns:
    the numeric value represented by this object after conversion to type double.
  - toFloat
```
public Float toFloat()
```
    Gets this mutable as an instance of Float.
    
    Returns:
    a Float instance containing the value from this mutable, never null
  - equals
```
public boolean equals(Object obj)
```
    Compares this object against some other object. The result is 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:
    - If f1 and f2 both represent Float.NaN, then the equals method returns true, even though Float.NaN==Float.NaN has the value false.
    - If 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.
    This definition allows hashtables to operate properly.
    Overrides:
    
    equals in class Object
    
    Parameters:
    obj - the object to compare with, null returns false
    
    Returns:
    true if the objects are the same; false otherwise.
    See Also:
    Float.floatToIntBits(float)
  - hashCode
```
public int hashCode()
```
    Returns a suitable hash code for this mutable.
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    a suitable hash code
  - compareTo
```
public int compareTo(MutableFloat other)
```
    Compares this mutable to another in ascending order.
    
    Specified by:
    
    compareTo in interface Comparable<MutableFloat>
    
    Parameters:
    other - the other mutable to compare to, not null
    
    Returns:
    negative if this is less, zero if equal, positive if greater
  - toString
```
public String toString()
```
    Returns the String value of this mutable.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    the mutable value as a string

Class MutableFloat

Constructor Summary

Method Summary

Methods inherited from class java.lang.Number

Methods inherited from class java.lang.Object

Constructor Detail

MutableFloat

MutableFloat

MutableFloat

MutableFloat

Method Detail

getValue

setValue

setValue

isNaN

isInfinite

increment

decrement

add

add

subtract

subtract

intValue

longValue

floatValue

doubleValue

toFloat

equals

hashCode

compareTo

toString