Compartir a través de


Integer.ValueOf Method

Definition

Overloads

ValueOf(Int32)

Returns an Integer instance representing the specified int value.

ValueOf(String)

Returns an Integer object holding the value of the specified String.

ValueOf(String, Int32)

Returns an Integer object holding the value extracted from the specified String when parsed with the radix given by the second argument.

ValueOf(Int32)

Returns an Integer instance representing the specified int value.

[Android.Runtime.Register("valueOf", "(I)Ljava/lang/Integer;", "")]
public static Java.Lang.Integer ValueOf (int i);
[<Android.Runtime.Register("valueOf", "(I)Ljava/lang/Integer;", "")>]
static member ValueOf : int -> Java.Lang.Integer

Parameters

i
Int32

an int value.

Returns

an Integer instance representing i.

Attributes

Remarks

Returns an Integer instance representing the specified int value. If a new Integer instance is not required, this method should generally be used in preference to the constructor #Integer(int), as this method is likely to yield significantly better space and time performance by caching frequently requested values.

This method will always cache values in the range -128 to 127, inclusive, and may cache other values outside of this range.

Added in 1.5.

Java documentation for java.lang.Integer.valueOf(int).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

ValueOf(String)

Returns an Integer object holding the value of the specified String.

[Android.Runtime.Register("valueOf", "(Ljava/lang/String;)Ljava/lang/Integer;", "")]
public static Java.Lang.Integer ValueOf (string s);
[<Android.Runtime.Register("valueOf", "(Ljava/lang/String;)Ljava/lang/Integer;", "")>]
static member ValueOf : string -> Java.Lang.Integer

Parameters

s
String

the string to be parsed.

Returns

an Integer object holding the value represented by the string argument.

Attributes

Exceptions

if string cannot be parsed as an integer value.

Remarks

Returns an Integer object holding the value of the specified String. The argument is interpreted as representing a signed decimal integer, exactly as if the argument were given to the #parseInt(java.lang.String) method. The result is an Integer object that represents the integer value specified by the string.

In other words, this method returns an Integer object equal to the value of:

<blockquote> new Integer(Integer.parseInt(s))</blockquote>

Java documentation for java.lang.Integer.valueOf(java.lang.String).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

See also

Applies to

ValueOf(String, Int32)

Returns an Integer object holding the value extracted from the specified String when parsed with the radix given by the second argument.

[Android.Runtime.Register("valueOf", "(Ljava/lang/String;I)Ljava/lang/Integer;", "")]
public static Java.Lang.Integer ValueOf (string s, int radix);
[<Android.Runtime.Register("valueOf", "(Ljava/lang/String;I)Ljava/lang/Integer;", "")>]
static member ValueOf : string * int -> Java.Lang.Integer

Parameters

s
String

the string to be parsed.

radix
Int32

the radix to be used in interpreting s

Returns

an Integer object holding the value represented by the string argument in the specified radix.

Attributes

Exceptions

if string cannot be parsed as an integer value, or radix Character.MAX_RADIX.

Remarks

Returns an Integer object holding the value extracted from the specified String when parsed with the radix given by the second argument. The first argument is interpreted as representing a signed integer in the radix specified by the second argument, exactly as if the arguments were given to the #parseInt(java.lang.String, int) method. The result is an Integer object that represents the integer value specified by the string.

In other words, this method returns an Integer object equal to the value of:

<blockquote> new Integer(Integer.parseInt(s, radix))</blockquote>

Java documentation for java.lang.Integer.valueOf(java.lang.String, int).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

See also

  • <xref:Java.Lang.Integer.ParseInt(System.String%2c+System.Int32)>

Applies to