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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.

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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