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Java.lang.Character.isWhitespace() Method
Description
The java.lang.Character.isWhitespace(int codePoint) determines if the specified character (Unicode code point) is white space according to Java. A character is a Java whitespace character if and only if it satisfies one of the following criteria −
- It is a Unicode space character (SPACE_SEPARATOR, LINE_SEPARATOR, or PARAGRAPH_SEPARATOR) but is not also a non-breaking space ('\u00A0', '\u2007', '\u202F').
- It is '\t', U+0009 HORIZONTAL TABULATION.
- It is '\n', U+000A LINE FEED.
- It is '\u000B', U+000B VERTICAL TABULATION.
- It is '\f', U+000C FORM FEED.
- It is '\r', U+000D CARRIAGE RETURN.
- It is '\u001C', U+001C FILE SEPARATOR.
- It is '\u001D', U+001D GROUP SEPARATOR.
- It is '\u001E', U+001E RECORD SEPARATOR.
- It is '\u001F', U+001F UNIT SEPARATOR.
Declaration
Following is the declaration for java.lang.Character.isWhitespace() method
public static boolean isWhitespace(int codePoint)
Parameters
codePoint − the character (Unicode code point) to be tested
Return Value
This method returns true if the character is a Java whitespace character, false otherwise.
Exception
NA
Example
The following example shows the usage of lang.Character.isWhitespace() method.
package com.tutorialspoint; import java.lang.*; public class CharacterDemo { public static void main(String[] args) { // create 2 int primitives cp1, cp2 int cp1, cp2; // assign values to cp1, cp2 cp1 = 0x001c; // represents FILE SEPARATOR cp2 = 0x0abc; // create 2 boolean primitives b1, b2 boolean b1, b2; /** * check if cp1, cp2 represent whitespace characters * and assign results to b1, b2 */ b1 = Character.isWhitespace(cp1); b2 = Character.isWhitespace(cp2); String str1 = "cp1 represents Java whitespace character is " + b1; String str2 = "cp2 represents Java whitespace character is " + b2; // print b1, b2 values System.out.println( str1 ); System.out.println( str2 ); } }
Let us compile and run the above program, this will produce the following result −
cp1 represents Java whitespace character is true cp2 represents Java whitespace character is false
java_lang_character.htm
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