User Input Validation, enforcing a string containing only letters

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Im trying to make a user input validation system within one of my methods... its working fine to a cetain extent, but despite the code, its still allowing for integers as valid

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  •  醉梦人生
    2021-01-29 10:48

    Try something like"

    if (!userName.matches(".*\\d+.*")) {
        System.out.println("Only strings no numbers");
    }
    

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