Capgemini Senior Consultant Interview Questions, Process, and Tips

HashMap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.

• HashMap uses hashing to store and retrieve key-value pairs efficiently.

• Keys in a HashMap must be unique, but values can be duplicated.

• HashMap allows for null keys and null values.

• Example: HashMap map = new HashMap<>(); map.put("key1", 1); int value = map.get("key1");

Setup tables are used to store configuration data that is used by the system to control its behavior.

• Setup tables are used to store configuration data that is used by the system to control its behavior.

• They are typically used to define parameters, settings, or options that affect the functionality of the system.

• Setup tables are often used in software applications to store user preferences, system settings, or other con...read more

OOPS concepts refer to Object-Oriented Programming concepts which include inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation...read more