Question

How to determine if a character is permissible as the first character in a Unicode identifier in Java

Answer 1

package javaapplication1;
 
public class JavaApplication1 {
 
    public static void main(String[] args) {
 
        char ch = '!';

        boolean b;
        
        b = Character.isUnicodeIdentifierStart(ch);
        System.out.println(b);
        
        System.out.println(Character.isUnicodeIdentifierStart('a'));
    }
}
 
/*
run:

false
true
 
*/

 

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