- Java.lang Package classes
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Java.lang.Character.isJavaIdentifierPart() Method
Description
The java.lang.Character.isJavaIdentifierPart(int codePoint) determines if the character (Unicode code point) may be part of a Java identifier as other than the first character.
A character may be part of a Java identifier if any of the following are true −
- it is a letter
- it is a currency symbol (such as '$')
- it is a connecting punctuation character (such as '_')
- it is a digit
- it is a numeric letter (such as a Roman numeral character)
- it is a combining mark
- it is a non-spacing mark
- isIdentifierIgnorable(codePoint) returns true for the character
Declaration
Following is the declaration for java.lang.Character.isJavaIdentifierPart() method
public static boolean isJavaIdentifierPart(int codePoint)
Parameters
codePoint − the character (Unicode code point) to be tested
Return Value
This method returns true if the character may be part of a Java identifier, false otherwise.
Exception
NA
Example
The following example shows the usage of lang.Character.isJavaIdentifierPart() 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 = 0x01f1; cp2 = 0x07c0; // create 2 boolean primitives b1, b2 boolean b1, b2; /** * check if characters represented by cp1, cp2 can be part of * java identifier and assign results to b1, b2 */ b1 = Character.isJavaIdentifierPart(cp1); b2 = Character.isJavaIdentifierPart(cp2); String str1 = "cp1 may be part of a Java identifier is " + b1; String str2 = "cp2 may be part of a Java identifier 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 may be part of a Java identifier is true cp2 may be part of a Java identifier is false
java_lang_character.htm
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