In the second module of this course, we will look at how computers store data during the execution of a program. We will look at storing whole numbers, decimal numbers, boolean values and strings. We will explore how you can convert between different types of variables. Lastly, we will look at how long a variable stays in existence and when it is visible to the pieces of the code.

In the third module of this course, we will learn how to change the flow of a program’s execution based on a test. We will look at single tests utilizing if statements in our code. We follow up with multiple tests with the addition of the else clause. Lastly, we look at the case statement as an alternative expression of the flow of the program.

In the fourth module of this course, we learn how to change the flow of our programs by repeating code iteratively. We will start with a look at loops that repeat a fixed number of times. We will follow up with writing loops that continue while a test is positive. Lastly, we will look at how we can modify the flow to immediately break from a loop or jump back to the test condition.