Arrays

• Arrays are used to store multiple Data values
• An array is a data structure that can store a collection of data values all under one name
• Each piece of data in an array is called an element - each element can be accessed using it position (or index) in the array
• When are arrays most helpful?

  When you have lots of related data that you want to store and it doesn't make sense to use separate variables
• Some languages require you to declare arrays before you use them
• One-Dimensional Arrays are like lists
• Different languages have different ways to create and update arrays