java Replacing an existing word [20 points]: Here you will first check if the Klingon word in oldWord exists in the class dictionary dict (regardless of its English translation or case sensitivity), then: a) If you do find oldWord, remove it from the dictionary then insert newWord in the exact same location where you removed oldWord. b) If you do not find oldWord, then add newWord normally at the end of the dictionary. Return 0 if a replacement did happen (i. e. you found oldWord), -1 otherwise.