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Exercise: Mathematical Operations

Explore how to implement various mathematical operations in Kotlin by leveraging sealed classes and interfaces. Understand how to define addition, subtraction, multiplication, division with validation, and a custom calculation with error handling. This lesson helps you practice creating flexible type hierarchies and ensures you can apply Kotlin’s sealed classes to solve practical calculation tasks.

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Problem statement

Implement various mathematical operations like Addition, Subtraction, Multiplication, Division, and custom calculations using sealed classes and interfaces.

You have the following sealed classes representing mathematical operations:

sealed class MathOperation : Operation {
    // ... (Addition, Subtraction, Multiplication, Division)
}
class CustomOperation(val value: Double) : Operation {
    // ... (CustomOperation specific implementation)
}

Additionally, you are provided with an Operation interface:

interface Operation {
    fun calculate(): Double
}

Instructions

Your task is to implement the necessary logic within the sealed classes to perform the specified mathematical operations. Each subclass of MathOperation should ...