Gain insights into fundamental and advanced C# programming concepts. Learn about conditional statements, loops, methods, arrays, classes, inheritance, interfaces, and delegates through practical challenges.

This course introduces you to fundamental programming concepts in C#, one of the most popular languages in the world. The highly interactive course begins with a simple Hello world program and proceeds on to cover common concepts such as conditional statements, loop statements, and methods in C#. It also reflects upon the idea of arrays as well as the power they give to the programmer to write better code. Finally, it dives deeper in order to teach about advanced concepts such as classes, inheritance, interfaces, and delegates in C# through interactive challenges and exercises.

C# for Programmers: A Practical Guide

## Problem Statement 

Write a method `checkSum` which 
* Takes two integers `num1` and `num2`. 
  * *pass by value* method is used to pass the arguments to *method*.
* Has a `check` variable whose value gets updated as explained below.
* **Adds** `num1` and `num2`, and *checks* if their **sum** is **less** than **100** in which case 
  * it prints **sum is less than 100**.
  * sets the value of the `check` variable to **0**. 

* If **sum** is **greater** then **100** 
  * it prints **sum is greater than 100**. 
  * sets the value of the `check` variable to **1**. 

* If **sum** is **equal** to **100** 
  * it prints **sum is equal to 100** 
  * sets the value of the `check` variable to **2**. 


* At the end it will `return` the **check** variable.

###  Example

**Input**: 4, 80

The console should display the follolwing:




![](/api/collection/10370001/5701129488826368/page/5661698467823616/image/5677691583856640)

>**Note:** In the above case the method should set `check` to **0**.

# Problem Statement 

Write a method `checkSum` which 
* Takes two integers `num1` and `num2`. 
  * *pass by value* method is used to pass the arguments to *method*.
* Has a `check` variable whose value gets updated as explained below.
* **Adds** `num1` and `num2`, and *checks* if their **sum** is **less** than **100** in which case 
  * it prints **sum is less than 100**.
  * sets the value of the `check` variable to **0**. 

* If **sum** is **greater** then **100** 
  * it prints **sum is greater than 100**. 
  * sets the value of the `check` variable to **1**. 

* If **sum** is **equal** to **100** 
  * it prints **sum is equal to 100** 
  * sets the value of the `check` variable to **2**. 


* At the end it will `return` the **check** variable.

## Example

**Input**: 4, 80

The console should display the follolwing:




![](/api/collection/10370001/5701129488826368/page/5661698467823616/image/5677691583856640)

>**Note:** In the above case the method should set `check` to **0**.

In this exercise, you have to write a code to add integers and return their sum using the pass by value method

Introduction

Variables and Casting

Operators

Conditions

Loops

Arrays

Methods

Exception Handling

Classes

OOP in C#

Delegates

C# Exam

Exercise 1: Function To Check Sum

Problem Statement