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Start your free trialWojciech Lisowski
3,093 Pointsi do not understand why at the end of the line is -1. boolean isHit = answer.indexOf(letter)!=-1;
i make program java obejct Scrrable: boolean isHit = answer.indexOf(letter)!=-1; why -1?
1 Answer
Matthew S
8,626 PointsAn index is considered a number starting from 0 as the first index and onwards. -1 is an index that doesn't exist, so "!=-1" means if the index does not equal to not existing (hope that makes sense)