How to Count Only Letters in a String in Java

This is the simple but logic building java exercise for beginners. The program just counts letter in a given string e.g. a1B2C456 has only 3 Letters i.e aBC 12456 are not letters.

Source Code

package packaga;
public class countLeters {
 /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        String str = "A1B2C3";
        int count = 0;
        for (int i = 0; i < str.length(); i++) {
          if (Character.isLetter(str.charAt(i)))
            count++;
        }
        System.out.println("Striing "+str+" has "+count + " letters.");
    }
    }

Output of the Program

About Asad

Asad Niazi is Software Engineer , Programmer, Web Developer and a young mentor of BloggersTown and PProgramming. Asad Love to writes about Technology, Programming, Blogging and make money online.