When we're first developing a program, we often display the value of variables to double-check the state of the program. Are the variables storing what we think they're storing, or did our …

To use a variable, we must both declare it—to let the program know about the variable—and then assign it—to let the program know what value we are storing in the variable.

A variable is a reserved location in the computer's memory for storing a value. We associate each location with a name, so it's easy for us as the programmers to refer to a specific location later.

Practice variable assignment in the AP CSP pseudocode, in this set of free practice questions designed for AP Computer Science Principles students.

Jessica explains how to use variables to hold on to a value to use later. Variables are an important part of programming, so pay close attention!

How does the way computers process information differ from how humans process information? Learn how computers interpret sequence and state as you write, run, and debug your first …

In this course, you'll learn the fundamentals of programming from variables, to conditionals, loops, functions, and data structures as you apply programming to solve a diverse range of problems!

In Python, variables are created dynamically when you assign a value to them, and their type is inferred from the value that is assigned. This means that you don't need to declare the type of …

Variables Learn how to name and use variables in Python. You'll see how to store information and assign values in your code.

Storing with variables We'll often want to store the results of mathematical expressions in variables, especially if we want to reuse the results of a calculation later.