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java.lang.Objectjava.lang.Number
org._3pq.jgrapht.util.ModifiableInteger
The ModifiableInteger
class wraps a value of the primitive type
int
in an object, similarly to Integer
. An
object of type ModifiableInteger
contains a single field whose
type is int
.
Unlike java.lang.Integer
, the int value which the
ModifiableInteger represents can be modified. It becomes useful when used
together with the collection framework. For example, if you want to have a
List
of counters. You could use Integer
but
that would have became wasteful and inefficient if you frequently had to
update the counters.
WARNING: Because instances of this class are mutable, great care must be
exercised if used as keys of a Map
or as values in a
Set
in a manner that affects equals comparisons while the
instances are keys in the map (or values in the set). For more see
documentation of Map
and Set
.
Field Summary | |
int |
value
The int value represented by this ModifiableInteger . |
Constructor Summary | |
ModifiableInteger()
Deprecated. not really deprecated, just marked so to avoid mistaken use. |
|
ModifiableInteger(int value)
Constructs a newly allocated ModifiableInteger object that
represents the specified int value. |
Method Summary | |
int |
compareTo(ModifiableInteger anotherInteger)
Compares two ModifiableInteger objects numerically. |
int |
compareTo(java.lang.Object o)
Compares this ModifiableInteger object to another object. |
double |
doubleValue()
|
boolean |
equals(java.lang.Object o)
Compares this object to the specified object. |
float |
floatValue()
|
int |
getValue()
Returns the value of this object, similarly to intValue() . |
int |
hashCode()
Returns a hash code for this ModifiableInteger . |
int |
intValue()
|
long |
longValue()
|
void |
setValue(int value)
Sets a new value for this modifiable integer. |
java.lang.Integer |
toInteger()
Returns an Integer object representing this
ModifiableInteger 's value. |
java.lang.String |
toString()
Returns a String object representing this
ModifiableInteger 's value. |
Methods inherited from class java.lang.Number |
byteValue, shortValue |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
public int value
ModifiableInteger
.
Constructor Detail |
public ModifiableInteger()
ModifiableInteger(int)
constructor
instead !!!
This constructor is for the use of java.beans.XMLDecoder deserialization. The constructor is marked as 'deprecated' to indicate to the programmer against using it by mistake.
public ModifiableInteger(int value)
ModifiableInteger
object that
represents the specified int
value.
value
- the value to be represented by the
ModifiableInteger
object.Method Detail |
public void setValue(int value)
value
- the new value to set.public int getValue()
intValue()
. This
getter is NOT redundant. It is used for serialization by
java.beans.XMLEncoder.
public int compareTo(ModifiableInteger anotherInteger)
ModifiableInteger
objects numerically.
anotherInteger
- the ModifiableInteger
to be compared.
0
if this ModifiableInteger
is equal to the argument ModifiableInteger
; a
value less than 0
if this
ModifiableInteger
is numerically less than the
argument ModifiableInteger
; and a value greater
than 0
if this ModifiableInteger
is
numerically greater than the argument
ModifiableInteger
(signed comparison).public int compareTo(java.lang.Object o)
ModifiableInteger
object to another object.
If the object is an ModifiableInteger
, this function
behaves like compareTo(Integer)
. Otherwise, it throws a
ClassCastException
(as ModifiableInteger
objects are only comparable to other ModifiableInteger
objects).
compareTo
in interface java.lang.Comparable
o
- the Object
to be compared.
0
if the argument is a
ModifiableInteger
numerically equal to this
ModifiableInteger
; a value less than
0
if the argument is a
ModifiableInteger
numerically greater than this
ModifiableInteger
; and a value greater than
0
if the argument is a
ModifiableInteger
numerically less than this
ModifiableInteger
.Comparable.compareTo(java.lang.Object)
public double doubleValue()
Number.doubleValue()
public boolean equals(java.lang.Object o)
true
if and only if the argument is not null
and is an ModifiableInteger
object that contains the same
int
value as this object.
o
- the object to compare with.
true
if the objects are the same;
false
otherwise.public float floatValue()
Number.floatValue()
public int hashCode()
ModifiableInteger
.
int
value represented by this
ModifiableInteger
object.public int intValue()
Number.intValue()
public long longValue()
Number.longValue()
public java.lang.Integer toInteger()
Integer
object representing this
ModifiableInteger
's value.
Integer
representation of the value of this
object.public java.lang.String toString()
String
object representing this
ModifiableInteger
's value. The value is converted to
signed decimal representation and returned as a string, exactly as if
the integer value were given as an argument to the Integer.toString(int)
method.
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