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Arrays

An array is a structure that holds multiple values of the same type. The length of an array is established when the array is created (at runtime). After creation, an array is a fixed-length structure.

[PENDING: draw a picture, needs to show "element" and "index"]

An array element is one of the values within an array and is accessed by its position within the array.

If you want to store data of different types in a single structure, or if you need a structure whose size can change dynamically, use a Collection implementation, such as Vector, instead of an array. Refer to Collections for a complete trail on the subject. This section covers these array-related topics:

• Creating and Using Arrays
• Arrays of Objects
• Arrays of Arrays
• Copying Arrays
• Summary of Arrays
• Questions and Exercises: Arrays

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