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Kotlin Coroutines Guide

1. What is a Coroutine?

• Coroutines are lightweight cooperative concurrent mechanisms.
• They have the ability to pause and resume a function without blocking the thread.

2. Why Choose Coroutines Over Threads?

• Blocking a thread is memory-intensive.
• Context switching between threads is expensive.
• During I/O operations, a thread remains idle while waiting for a response.

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Class Diagram Concepts

A Class Diagram is one of the most commonly used UML diagrams in software design. It provides a static view of a system by depicting its classes, attributes, operations, and the relationships among objects. Class diagrams are vital for object-oriented modeling, as they define the blueprint of a system’s structure.

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Core Components of a Class Diagram

1. Class

A class represents a blueprint for objects in the system. It is defined by:

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SOLID Principles in Software Design

The SOLID principles are a set of design principles in object-oriented programming and software engineering that aim to make software more maintainable, scalable, and robust. The acronym SOLID stands for:

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1. Single Responsibility Principle (SRP)

Definition: A class should have only one reason to change. This means a class should have a single responsibility or focus.

Why it's important: