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Index › Programming Questions & Help › Syntax Questions › create  array of strings which do not duplica

oompa_l Full Member Offline Posts: 212	create  array of strings which do not duplica Sep 13th, 2008, 12:18am   hi just trying to figure out a way to run a for loop of strings adding new ones that are encountered to a new array and skipping those that have already been added. How would you do this? How do you check for something already inside an array?

Jo Wood Junior Member Offline Posts: 52

Re: create  array of strings which do not duplica Reply #1 - Sep 13th, 2008, 1:11am   You might want to use a Set of some kind - this, by definition, only stores unique values and will not add repeats to the collection. For example, Quote: void setup() {   // Create a set and add some items.   HashSet mySet = new HashSet();   mySet.add("Cat");   mySet.add("Dog");   mySet.add("Cat");  // This will not get added.      // Display all the items stored in the set.   Iterator i = mySet.iterator();   while (i.hasNext())   {     println(i.next());   } }