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java.lang.Objectmoka.lang.Object
moka.lang.Integer
The Integer class wraps a value of the primitive type int
in an object. An object of type Integer
contains a
single field whose type is int
.
In addition, this class provides several methods for converting
an int
to a String
and a
String
to an int
, as well as other
constants and methods useful when dealing with an
int
.
Field Summary | |
static int |
MAX_VALUE
The largest value of type int . |
static int |
MIN_VALUE
The smallest value of type int . |
Constructor Summary | |
Integer(int value)
Constructs a newly allocated Integer object that
represents the primitive int argument. |
|
Integer(String s)
Constructs a newly allocated Integer object that
represents the value represented by the string. |
Method Summary | |
byte |
byteValue()
Returns the value of this Integer as a byte . |
double |
doubleValue()
Returns the value of this Integer as a double . |
boolean |
equals(Object obj)
Compares this object to the specified object. |
int |
intValue()
Returns the value of this Integer as an
int . |
static boolean |
isInt(String str)
Checks if the specified string is a decimal representation of an integer. |
long |
longValue()
Returns the value of this Integer as a long . |
static int |
parseInt(String s)
Parses the string argument as a signed decimal integer. |
short |
shortValue()
Returns the value of this Integer as a short . |
String |
toString()
Returns a String object representing this
Integer 's value. |
Methods inherited from class moka.lang.Object |
finalize, getClassName |
Methods inherited from class java.lang.Object |
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final int MIN_VALUE
int
. The constant
value of this field is -2147483648.
public static final int MAX_VALUE
int
. The constant
value of this field is 2147483647.
Constructor Detail |
public Integer(int value)
Integer
object that
represents the primitive int
argument.
value
- the value to be represented by the Integer
.public Integer(String s)
Integer
object that
represents the value represented by the string. The string is
converted to an int in exactly the manner used by the
parseInt method.
s
- the String
to be converted to an
Integer
.Method Detail |
public String toString()
String
object representing this
Integer
'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 valueOf method
of String.
toString
in class Object
public boolean equals(Object obj)
true
if and only if the argument is not
null
and is an Integer
object that
contains the same int
value as this object.
equals
in class Object
obj
- the object to compare with.
true
if the objects are the same;
false
otherwise.public int intValue()
Integer
as an
int
.
public static int parseInt(String s)
'-'
('\u002D'
) to indicate a negative value. The resulting
integer value is returned. The string argument is finalized before the method
returns.
s
- a String
containing the int
representation to be parsed
public long longValue()
long
.
This may involve rounding or truncation.
long
.public double doubleValue()
double
.
This may involve rounding.
double
.public byte byteValue()
byte
.
This may involve rounding or truncation.
byte
.public short shortValue()
short
.
This may involve rounding or truncation.
short
.public static boolean isInt(String str)
str
- The string to verify
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