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

A method needs method definition to perform a specific task.

A method needs method definition to perform a specific task.

If a method returns no value, the return type must be declared as void.

If a method returns no value, the return type must be declared as void.

A local variable declared in a method is usable out side that method.

A local variable declared in a method is usable out side that method.

Console.WriteLine statement needs to be written after the return statement

Cannot multiply x with y and return the answer in the same line

Need to pass both x and y parameters by reference 

Cannot return a value since the method is of type void

What is the error in the following method definition:
```
public static void mymethod(int x,int y){
  Console.WriteLine(x*y);
  return(x*y);
}
```

What is the error in the following method definition:
<pre><code>public static void mymethod(int x,int y){
 Console.WriteLine(x*y);
 return(x*y);
}
</code></pre>

The type of the parameter y is missing which should be int

Find the error in the following method definition:
```
public static int mymethod(int x,y){
    return(x*y);
}
```

Find the error in the following method definition:
<pre><code>public static int mymethod(int x,y){
 return(x*y);
}
</code></pre>

What is the value of `answer` in the following recursive method?
```
public static int fun(int n)
{
	if (n == 4){
	return n;
  }else{
  return 2*fun(n+1);
  }
}

static void Main(){
int answer = fun(2);
}      // As you might have noticed the classes are not defnied so consider it a pseudocode to answer the question. 
```




What is the value of <code>answer</code> in the following recursive method?
<pre><code>public static int fun(int n)
{
	if (n == 4){
	return n;
 }else{
 return 2*fun(n+1);
 }
}

static void Main(){
int answer = fun(2);
} // As you might have noticed the classes are not defnied so consider it a pseudocode to answer the question. 
</code></pre>

A quiz to test your understanding of functions in C#

Introduction

Variables and Casting

Operators

Conditions

Loops

Arrays

Methods

Exception Handling

Classes

OOP in C#

Delegates

C# Exam

Quiz