Ulrich Batanado :
I'm trying to get the code to check if an input either has nothing and is entered or doesn't have either Y or N, but I keep getting an error.
I've tried using just " | " but that doesn't work, and " , " just doesn't make sense.
while (answerToFirstQuestionYN.isEmpty() && !answerToFirstQuestionYN.equalsIgnoreCase("Y" || "N")) {
System.out.println("Input not recognized, try again.");
answerToFirstQuestionYN = reader.next();
}
The error message is " The operator "||" is undefined for the argument type(s) java.lang.String, java.lang.String "
Mark Rotteveel :
The || operator can only join boolean expressions. So you need to separate the conditions to:
!(answerToFirstQuestionYN.equalsIgnoreCase("Y") ||
answerToFirstQuestionYN.equalsIgnoreCase("N"))
Your first condition (answerToFirstQuestionYN.isEmpty()) needs to be removed, otherwise the whole condition is only true if the string is empty.
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