Arrays are simple, however reliable to employ in more condition than you can count. Arrays are utilized in those problems while the number of items to be solved out is fixed. They are uncomplicated to traverse, search & sort. It is extremely simple to manipulate an array instead of other subsequent data structures. Arrays are utilized in that condition in which the size of array can be established beforehand. Also, they are utilized in condition where insertions & deletions are minimal or not present. Insertion & deletion operations will lead to wastage of memory or will enhance the time complexity of the program because of the reshuffling of elements.