In this section, we will learn what the Character isLetter() method is and how to use it in Java.

What is Java Character isLetter() Method?

The `isLetter()` method is used to see if the target character is a letter like `a`, `b`, `c` etc.

Java isLetter() Method Syntax:

static boolean isLetter(char ch)

isLetter() Method Parameters:

The method takes one argument, and that is the character that we want to check and see if it’s an alphabetic letter or not.

isLetter() Method Return Value:

The return value of this method is of type boolean.

If the target character was in fact a letter, then the result will be `true` otherwise `false`.

Example: using Character isLetter() method

public class Simple {

    public static void main(String args[]) {

        System.out.println(Character.isLetter('\t'));
        System.out.println(Character.isLetter('a'));
        System.out.println(Character.isLetter('5'));
    }
}

Output:

false

true

false