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Java.lang.Character.isIdentifierIgnorable() Method
Description
The java.lang.Character.isIdentifierIgnorable(int codePoint) determines if the specified character (Unicode code point) should be regarded as an ignorable character in a Java identifier or a Unicode identifier.
The following Unicode characters are ignorable in a Java identifier or a Unicode identifier −
ISO control characters that are not whitespace
- '\u0000' through '\u0008'
- '\u000E' through '\u001B'
- '\u007F' through '\u009F'
- all characters that have the FORMAT general category value
Declaration
Following is the declaration for java.lang.Character.isIdentifierIgnorable() method
public static boolean isIdentifierIgnorable(int codePoint)
Parameters
codePoint − the character (Unicode code point) to be tested
Return Value
This method returns true if the character is an ignorable control character that may be part of a Java or Unicode identifier, false otherwise.
Exception
NA
Example
The following example shows the usage of lang.Character.isIdentifierIgnorable() 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 = 0x008f; cp2 = 0x0abc; // create 2 boolean primitives b1, b2 boolean b1, b2; // assign isIdentifierIgnorable results of cp1, cp2 to b1, b2 b1 = Character.isIdentifierIgnorable(cp1); b2 = Character.isIdentifierIgnorable(cp2); String str1 = "cp1 is an ignorable control character is "+b1; String str2 = "cp2 is an ignorable control 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 is an ignorable control character is true cp2 is an ignorable control character is false