Final answer:
An array is a collection of elements of the same data type, declared using specific syntax in a programming language. Arrays are fundamental in storing and managing multiple data items and are typically declared by specifying the data type of elements, followed by the array's name.
Step-by-step explanation:
Arrays are declared using a specific syntax based on the programming language in question. In most programming languages, an array is a collection of elements that are of the same data type, and it is typically declared by specifying the data type of the elements followed by square brackets and then the array name. For example, in the C programming language, you might declare an integer array of size 10 as follows: int arrayName[10];
To initialize the array, you may set individual elements or use an initialization list. For instance, initializing the same integer array with zero for all elements can be done using int arrayName[10] = {0};.
Arrays are a fundamental concept in programming, allowing the storage and manipulation of sequences of data efficiently, and are particularly useful when dealing with large amounts of data that can be processed algorithmically or in loops.