Key Features of Arrays:

• Definition: Arrays are data structures that store a group of elements of the same data type.
• Naming: All elements share the same name, differentiated by an index.
• Access: Elements can be accessed randomly using a numeric index.
• Simplicity: Arrays are simple and have been used for decades, offering great utility.
• ADT List: Frequently associated with the Abstract Data Type (ADT) list.

Array Declaration

Syntax: data-type array_name [constant-size];  where, Data-type: The type of elements stored and Constant-size: The number of elements.

Examples:

1. int num[80];
2. float farr[500];
3. static int iarr[80];

Restrictions:

1. Fixed Size: The storage amount must be specified at compile time
2. Homogeneity: All elements in an array must be of the same data type.

Size Specification

Use symbolic constants for array sizes for easier modifications. Example:

#define SIZE 50

int arr[SIZE];