Learn basic programming concepts of C# such as conditional statements, loop statements, and methods.

Become an ASP.NET Core Developer

This highly interactive module begins with a simple “Hello, World!” program and proceeds 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 teaches us about exception handling 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 to C#

Variables and Casting

Operators

Conditions

Loops

Arrays

Methods

Exception Handling

Conclusion

Quiz