I'll highlight only those aspects of collections that we'll need. But if you're interested in knowing more, you should study more about them on your own. There are several interesting things about collections that I won't be mentioning. Similar to arrays, collections are objects used to group related items. Unlike arrays, collections are dynamic .
Collections can hold any kind of data.
It's as if they were declared as type Variant. For our purposes, we'll only be using them to store string data. Like other kinds of objects, collections must be explicitly created. Collection 'Create a new, empty collection. Once created, collection objects provide methods to add, remove and retrieve the items in the collection.