Here is my attempt at answering your C# interview question:
When to Use ArrayList over array[] in C#
In C#, the choice between using an ArrayList or a standard array (array[]) depends on the specific requirements of your application. Here are some key factors to consider:
Flexibility
ArrayList is a collection class that provides a more flexible alternative to arrays. It can dynamically resize to accommodate changes in the number of elements.
Arrays have a fixed size that must be specified when they are created. Adding or removing elements requires creating a new array.
Heterogeneous Data
ArrayList can store elements of different data types. This allows for heterogeneous collections.
Arrays typically store elements of a single data type. Storing different types requires using a base class type like object.
Performance
Arrays are generally faster and more efficient than ArrayList for operations like indexing, looping, and accessing elements. Arrays have a ...
