The Array is a fundamental topic for programming interviews. In your coding journey, you will FIND that arrays are used in many problems. Arrays are ubiquitous which means no matter which programming language you choose, the usage of arrays will be there.  It’s available in various programming languages like C, C++, Java, and even in Python, Perl, and Ruby.

• An Array is a collection of similar data types stored in CONTIGUOUS memory locations.
• At the time of declaration of an array, you must specify the type of data with the array name.
• You can access different elements present in an array using their index. For example, if you want to access an element pleasant at the 3rd index(4th element) in an array arr, then you can write arr[3].

Array declaration syntax in C/C++:

DataType ArrayName [SIZE];

Array declaration syntax  in Java:

int [] intArray; 

• An array is fixed in length i.e static in nature.
• An array can hold primitive types and object references.
• In an array when a reference is made to a nonexistent element, an IndexOutOfRangeException occurs.

Note:- Array indexing starts from 0, not 1.

From the figure, you can observe that:

• Element 72 is at index 3 but actually, it's the 4th element of the array.
• In an array, the first element is at the lowest address and the last element is at the highest address.

If you are PLANNING to interview for a developer’s position, you must prepare arrays very well. In this article, we will be covering a comprehensive LIST of Array interview questions and answers for freshers and experienced professionals to help you ace the interview:

• Array Interview Questions for Freshers
• Array Interview Questions for Experienced
• Array Coding Interview Questions