Check for character is letter or digit.

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Check for character is letter or digit.
Posted on: June 29, 2010 at 12:00 AM

This example checks for character variable value is letter or digit.
Description

Description:

This tutorial demonstrate how to check a character variable value is a digit or letter using isLetterOrDigit() method.

Code:


public class LetterOrDigit {

  public static void main(String[] args) {

    char symbol = '1';

    if (Character.isLetterOrDigit(symbol)) {

      System.out.println("true");

    } else {

      System.out.println("false");

    }

    char symbol1 = 'A';

    if (Character.isLetterOrDigit(symbol1)) {

      System.out.println("true");

    } else {

      System.out.println("false");

    }

  }

}

Output:

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