Working routine droid

if(triesRemaining > 0) {
            Character userInput = event.getDisplayLabel();
            if(isValidChar(userInput)) {
                if(!isAlreadyGuessed(userInput)) {
                    if(!isInSecretWord(userInput)) {
                        triesRemaining--;
                    }

                    charactersUsed.add(userInput);
                }
            }
        }