Clover Infotech Software Engineer Interview Questions, Process, and Tips

Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.

• Abstract classes can have constructors, fields, and non-abstract methods.

• Interfaces can only have abstract methods and constants.

• A class can implement multiple interfaces, but can only inherit from one abstract class.

• Abstract classes are used to define a common behavior for subclasses, while interfaces defi

Stored procedures are precompiled SQL queries stored in the database, while functions are reusable blocks of code that return a value.

• Stored procedures are used for executing a set of SQL statements, while functions are used to perform specific tasks and return a value.

• Stored procedures can have input and output parameters, while functions always return a value.

• Stored procedures can modify data in the database, while f...read more

The ASP.NET page life cycle consists of a series of stages that a page goes through from request to response.

• 1. Page Request: The page is requested by the user, triggering the life cycle.

• 2. Start: The page initializes, and properties like IsPostBack are set.

• 3. Initialization: Controls are initialized, and their properties are set.

• 4. Load: The page and its controls load data from the server.

• 5. Postback Event Handling: I...read more

Functions return values and can be used in expressions; stored procedures perform actions and do not return values directly.

• Functions can be called within SQL statements, e.g., SELECT function_name();

• Stored procedures are executed using CALL statement, e.g., CALL procedure_name();

• Functions must return a value, while stored procedures can return multiple values using OUT parameters.

• Functions are typically used for compu...read more

A view in SQL is a virtual table based on the result of a query, allowing simplified data access and manipulation.

• A view does not store data itself; it displays data stored in tables.

• Example: CREATE VIEW employee_view AS SELECT name, department FROM employees;

• Views can simplify complex queries by encapsulating them.

• They can provide a layer of security by restricting access to specific data.

• Example: SELECT * FROM employ

Dependency injection is a design pattern that allows a program to achieve Inversion of Control by injecting dependencies into a class.

• Promotes loose coupling between classes, making code easier to manage and test.

• Facilitates easier unit testing by allowing mock dependencies to be injected.

• Commonly used in frameworks like Spring (Java) and Angular (JavaScript).

• Example: Instead of a class creating its own dependencies, t...read more

Object-Oriented Programming (OOP) enhances code reusability, maintainability, and scalability through encapsulation, inheritance, and polymorphism.

• Encapsulation: Bundles data and methods, e.g., a 'Car' class with properties like 'speed' and methods like 'accelerate()'.

• Inheritance: Allows new classes to inherit properties from existing ones, e.g., 'ElectricCar' inherits from 'Car'.

• Polymorphism: Enables methods to do dif...read more