if (getOverview)
{
BackInTheDay(); // A (very) brief, incomplete history
GettingStarted(); // How to begin writing programs in C#/.NET
}
else
{
switch (lessonIndex)
{
case 0:
Lesson0(); // Hello World
case 1:
Lesson1(); // Basics and Logic
case 2:
Lesson2(); // Methods and Arguments
case 3:
Lesson3(); // Creating a Chat Bot!
}
}