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It seems that the code does not check input like "tr" or "tree" which has more than 1 letter
As described in the title, it seems that the code does not check input like "tr" or "tree" which has more than 1 letter. So we assume these cases are legal and just check the first character?
Your question is not attached to a particular video or challenge, but if you are asking about the Hangman game in the Java Objects course then the answer is yes, your conclusion is correct.
On this line:
char guess = guessInput.charAt(0);
You are pulling out the first letter of the
guessInput string, which is the string that contains the guess that was entered. So regardless of how many letters are entered only the first one will be treated as the guess.