AstraZeneca Software Engineer Interview Questions and Answers

A static method is a method that belongs to a class rather than an instance of the class.

• Static methods can be called without creating an instance of the class.

• They are often used for utility functions that don't require any state.

• Static methods cannot access non-static variables or methods.

• Example: Math.max() is a static method that returns the maximum of two numbers.

To make a single instance application, use a mutex to ensure only one instance is running.

• Create a named mutex when the application starts

• Check if the mutex already exists, if it does, exit the application

• Release the mutex when the application exits

Modules are files that contain code, while classes are templates for creating objects with shared properties and methods.

• Modules are used to organize code into separate files for better maintainability.

• Classes are used to create objects with shared properties and methods.

• Modules can be imported and exported to be used in other files.

• Classes can be extended and inherited to create new classes with additional properties