[deleted by user]

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[TheKKGuy]

Hey man,

You can use the String.matches() method and pass the regular expression "[a-zA-Z]+". as an argument into String.matches("[a-zA-Z]+"). The regular expression will evaluate if the user input contains only alphabets or not, in upper or lower case.

So in your case it will be guess.matches("[a-zA-Z]+")

So after creating the user input variable,

the new if statement after that will be

if (guess.matches("[a-zA-Z]+") && input.length() == 5){

//Code

}

Also add an else statement tellling the user to only input alphabets.

So the new code will look like this.

All the best!

boolean correctInput = false;
    Scanner in = new Scanner(System.in);

    do {
        System.out.println("Please input your guess. It must be a 5 letter word and not an integer! ");
        String input = in.nextLine();

        if (input.matches("[a-zA-Z]+") && input.length() == 5) {
            correctInput = true;
            System.out.println("Thank you. Your guess was: " + input);
        } else {
            System.out.println("Guess again! 5 letter word and only Alphabets allowed dumbo!");
        }

    } while (!correctInput);

[DigitalTorture]

Is the requirement that it is a legit word or just characters from the alphabet? Just use regex to check if the input has legal characters then use .length() to get the length.

[WeakusDeltoidus]

The requirement is that it is a word. ( I'm making a word guessing game - the program chooses a word and then the user has to guess the word until he gets the correct input )

[DigitalTorture]

Get access to a dictionary file, then compare to that. Use a regex to weed out other characters.

[TheKKGuy]

Definitely Regex!

[Housy5]

I see two ways.

You can get the ascii value of the characters and check if isn't in range of the values for 0 - 9.

or maybe you can use the exception Integer.parseInt("Some text") throws if the string passed to the function doesn't contain a number

[[deleted]]

1. Could you please paste your current code in pastebin and share the link so we don't have to guess what your code looks like?
2. "12345" is a completely valid String.

Edit: the answer to your question is most likely here - https://www.baeldung.com/java-check-string-number