Question

How to determine if the specified character (Unicode code point) is an alphabet in Java

Answer 1

package javaapplication1;
 
public class JavaApplication1 {
   
    public static void main(String[] args) {
          
        char ch;
 
        ch = 'Z';
 
        boolean b;
 
        b = Character.isLetter(ch); // boolean isAlphabetic(int codePoint)
        System.out.println(b);
         
        b = Character.isLetter('a');
        System.out.println(b);
         
        b = Character.isLetter('5');
        System.out.println(b);
        
        char ch2 = ' ';
        b = Character.isLetter(ch2); 
        System.out.println(b);
    }
}
 
/*
run:

true
true
false
false
 
*/

 

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