Check for value in array

Question

I need to check the array to see if the user input is already present, and display a message as to whether it is or isn\'t there. The first part is working, but I tried to creat

Answer 1

One simple solution is to use a Set:

Set words = new HashSet();

Add words with the add() method and check if a word is already added with contains(word) method.

EDIT

If you must use Arrays you can keep the array sorted and do a binary search:

Arrays.sort(words);
boolean isAlreadyAdded = Arrays.binarySearch(words, newWord) >= 0;