What are Conditional Statements

Suppose you want to protect your program with password.
You ask from the user to enter the password.
If the password is correct - you want to let the user in, if not - you want to end the program.

To do this, you have to use conditional statement because
the code you will execute (let the user in or end the program) is
depend on what is the password that the user has entered.

One of the basics of Conditional statement are Boolean variables.
Boolean variables are commonly used in programming,
and you have to understand them before continuing with