Infosys Interview Questions, Process, and Tips

OOPS concepts are the principles of Object-Oriented Programming that help in designing and implementing software systems.

• Encapsulation - bundling of data and methods that operate on that data

• Inheritance - creating new classes from existing ones

• Polymorphism - ability of objects to take on many forms

• Abstraction - hiding implementation details and showing only functionality

• Examples: class, object, inheritance, encapsulati

Class is a blueprint for creating objects. Objects are instances of a class that have their own unique properties and behaviors.

• A class is a template or blueprint for creating objects

• An object is an instance of a class with its own unique properties and behaviors

• Classes define the properties and methods that objects of that class will have

• Objects can interact with each other through their methods and properties

• Example:...read more

The 4 pillars of OOPs are Abstraction, Encapsulation, Inheritance, and Polymorphism.

• Abstraction: Hiding implementation details and showing only necessary information. Example: A car dashboard only shows necessary information like speed, fuel level, etc.

• Encapsulation: Binding data and functions that manipulate the data together. Example: A class in Python that has data attributes and methods that manipulate those attrib...read more

Data types include integers, floats, strings, and booleans. Variables store data. For loops iterate a set number of times. While loops iterate until a condition is met.

• Data types include int, float, string, and bool

• Variables store data and can be assigned values

• For loops iterate a set number of times based on a range or sequence

• While loops iterate until a condition is met

• Example: int x = 5; float y = 3.14; string name