Added in .NET 1.1
This allows you to work with a set of values as if they were an array and a collection at the same time.
Represents a collection of items whose size can be changed dynamically.
ArrayList vs Array
An arraylist is a combination of an array and a collection.
Imagine that you need to keep track of various objects but you have no idea how many.
It is difficult to use an array for this purpose because you must declare the size of the array at compile time.
This is an aray whose size is dynamically increased as required.
An arraylist has the following functionality:
You can address a value by its index
You can quickly sort and reverse the list
You can search sequentially
You can append elements to the end and insert them in a particular position
Different Data Types
These items can have different data types.
myArrayList = new System.Collections.ArrayList();
Do not return null ?
return new System.Collections.ArrayList
|Appends an element after the last element in the collection and returns the index where it was inserted.
|Removes all elements from the collection.
|Returns TRUE if an element exists in the collection.
|Copies the elements from the collection to a new one-dimensional array, starting at the specified index in the array.
|Returns an enumerator to iterate an ArrayList
|Returns the index of the element in the collection, or -1 if it cannot be found.
|Inserts an element at the specified index.
|Removes an element from the collection
|Removes an element at the specified index from the collection
|Reverses the order of the elements
|Alphabetically sorts the elements
|Copies all the elements to a new one-dimensional array
|Property contains the number of elements the srray can currently hold.
|Returns the number of elements in the collection.
|Returns TRUE if no more elements can be added to the collection.
|Returns TRUE is the elements cannot be altered.
The generic version of this collection is System.Collections.Generic.List
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