SubtractionFuctions 1.0.0

C# Subtraction Methods Demonstration Overview

This project demonstrates different ways of creating subtraction methods in C#. It covers multiple parameter techniques commonly used in real-world applications and technical interviews.

The program includes examples of:

Methods without parameters Methods with parameters Return types Method overloading Optional parameters params keyword ref parameters out parameters Concepts Covered

1. No Parameters Method

A method that performs subtraction without accepting any input from the user.

static void Subtract1() 2. Parameters Without Return Type

A method that accepts parameters and directly prints the result.

static void Subtract2(int a, int b) 3. Parameters With Return Type

A method that returns the subtraction result.

static int Subtract3(int a, int b) 4. Method Overloading

Using the same method name with different parameter lists.

static double Subtract4(double a, double b)

static int Subtract4(int a, int b, int c) 5. Optional Parameters

Allows default parameter values.

static int Subtract5(int a, int b = 10) 6. Params Keyword

Accepts multiple arguments dynamically.

static int Subtract6(params int[] numbers) 7. Ref Parameter

Passes arguments by reference.

static void Subtract7(ref int number, int value) 8. Out Parameter

Returns values using output parameters.

static void Subtract8(int a, int b, out int result) Technologies Used Language: C# Platform: .NET IDE: Visual Studio / Visual Studio Code Program Structure Program.cs │ ├── Subtract1() → No Parameters ├── Subtract2() → Parameters No Return ├── Subtract3() → Return Type ├── Subtract4() → Method Overloading ├── Subtract5() → Optional Parameters ├── Subtract6() → Params Keyword ├── Subtract7() → Ref Parameter ├── Subtract8() → Out Parameter └── Main() → Method Execution Sample Output No Parameters: 15 Parameters No Return: 30 Return Type: 70 Overloading Double: 15 Overloading 3 Params: 35 Optional Parameter: 30 Optional Parameter with Value: 25 Params Keyword: 65 Ref Parameter: 50 Out Parameter: 65 Learning Outcomes

After completing this project, you will understand:

Different types of method parameters in C# How method overloading works Difference between ref and out When to use params Return type vs void methods Real-world interview concepts in C# Interview Questions What is method overloading?

Using the same method name with different parameters.

Difference between ref and out ref out Variable must be initialized No need to initialize Used for modifying existing value Used for returning value What is the use of params?

Allows passing multiple arguments dynamically to a method.

How to Run Using Visual Studio Create a new Console Application Copy the code into Program.cs Build and Run