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@rolfl and @Mat's Mug have provided valuable insights on your question about comments, so I'll attempt to tackle the code part of it...

edit @rolfl's approach is better and I'll recommend it over the above.

@rolfl and @Mat's Mug have provided valuable insights on your question about comments, so I'll attempt to tackle the code part of it...

edit @rolfl's approach is better and I'll recommend it over the above.

edit@rolfl's approach is better and I'll recommend it over the above.

nextInt() throws a InputMismatchException if a non-integer input is entered, and not only that you must remember to 'consume' the current line by doing a nextLine() at the end. I'll suggest reading the entire line in, do a Integer.parseInt(line) and catching the NumberFormatException for invalid inputs. You can then repeatedly prompt the user until you get a valid integer (maybe you'll want to exclude negative values, or numbers outside your specified guessing range.

private static void printEither(boolean condition, String format, 
 String ifTrue, String ifFalse) {
 System.out.printf(format + "%n", condition ? ifTrue : ifFalse);
}

nextInt() throws a InputMismatchException if a non-integer input is entered, and not only that you must remember to 'consume' the current line by doing a nextLine() at the end. I'll suggest reading the entire line in, do a Integer.parseInt(line) and catching the NumberFormatException for invalid inputs. You can then repeatedly prompt the user until you get a valid integer (maybe you'll want to exclude negative values, or numbers outside your specified guessing range).

private static void printEither(boolean condition, String format, 
 String ifTrue, String ifFalse) {
 System.out.printf(format + "%n", condition ? ifTrue : ifFalse);
}