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How to check if a character is a letter / alphabet in java ?

Program to demonstrate how to check if a character is a letter / alphabet in Java

package com.hubberspot.example;


public class IsLetterTest {

   public static void main(String[] args) {
        // Create a String of character having letters 
  // in between just for a test
 String characters = "q1w2E3r4T5y 9$0%a-s^d";

 // we take the length of characters by length()
 int length = characters.length();

 // we than loop each character one by one 
 for(int i = 0; i < length; i++) {
           // we store each character in a variable
    // for each loop
    char character = characters.charAt(i);
        
    // checking for each character that its a letter or not
    // by calling Character class isLetter() method , by passing
    // the character. It returns true if the character passed is
    // letter or an alphabet
    if(Character.isLetter(character)) {
  System.out.println("Given character : " + characters.charAt(i) + " is a letter");
    }
    else {
  System.out.println("Given character : " + characters.charAt(i) + " is not a letter");
    }
 }
   }


}


Output of the program : 


 
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