Cognizant System Software Engineer Interview Questions and Answers for Experienced

A pointer is a variable that stores the memory address of another variable. An array is a collection of similar data types.

• Pointers are used to manipulate memory and create dynamic data structures.

• Arrays can be one-dimensional or multi-dimensional, and are accessed using index values.

• One-dimensional arrays are like a list of items, while two-dimensional arrays are like a table with rows and columns.

• Example: int *ptr; i...read more

An object is an instance of a class. A class is a blueprint for creating objects.

• An object is a data structure that contains data and methods.

• A class is a template or blueprint for creating objects.

• Objects are created from classes using the 'new' keyword.

• Classes define the properties and behaviors of objects.

• Inheritance allows classes to inherit properties and behaviors from other classes.

• Polymorphism allows objects to