Infosys DOT NET Developer Interview Questions, Process, and Tips

Interfaces are a way to define a contract between classes, specifying methods and properties that must be implemented.

• Interfaces allow for polymorphism and loose coupling

• Classes can implement multiple interfaces

• Interfaces can inherit from other interfaces

• Examples include IDisposable, IEnumerable, and IComparable

The components of .NET Framework include Common Language Runtime, Class Library, and ASP.NET.

• Common Language Runtime (CLR) - manages memory, security, and execution of code

• Class Library - provides a set of reusable classes and types for building applications

• ASP.NET - a web application framework for building dynamic web pages and web services

• Other components include ADO.NET, Windows Communication Foundation (WCF), Windo...read more

Access modifier determines the accessibility of a class, method, or variable from other parts of the program.

• Access modifiers are keywords used in object-oriented programming languages like C# and Java.

• They control the visibility and accessibility of class members.

• There are four access modifiers: public, private, protected, and internal.

• Public members are accessible from anywhere in the program.

• Private members are only...read more

Oops stands for Object-Oriented Programming. There are four types of OOPs concepts: Abstraction, Encapsulation, Inheritance, and Polymorphism.

• Abstraction: Hiding the implementation details and showing only the necessary information.

• Encapsulation: Wrapping data and functions into a single unit.

• Inheritance: Acquiring properties and behavior of a parent class by a child class.

• Polymorphism: Ability of an object to take man

Method is a block of code that performs a specific task and can be called by other parts of the program.

• Methods are used to break down complex programs into smaller, more manageable pieces.

• They can take input parameters and return values.

• Examples of methods in C# include Console.WriteLine() and Math.Max().

Class and object programming example

• Classes are templates for objects

• Objects are instances of classes

• Classes define properties and methods

• Objects can access and modify properties and methods

• Example: Class - Car, Object - Honda Civic