Programming Concepts Tutorial

Learn the fundamental concepts of computer programming

Chapter Quiz Exercises
Course Topics
Intro to Programming Programming Language Variables Constants If Statements Arrays Loops Functions Recursion Scope Strings Data Types Type Casting Operators Comments Input and Output Bits and Bytes Binary Numbers Hexadecimal Numbers Boolean Algebra

Variables

Variables

A variable is a named container used to store data in a computer's memory. Think of it as a box with a label on it.

Declaring a Variable

When you create a variable, you are declaring it. When you give it data, you are assigning a value to it.

Rules for Naming Variables

  • Names should be descriptive (e.g., score instead of s).
  • Cannot contain spaces.
  • Cannot start with a number.

Try It Yourself

Edit the code below and click Run to see the result live.

Source Code
Result
Topics
Intro to Programming Programming Language Variables Constants If Statements Arrays Loops Functions Recursion Scope Strings Data Types Type Casting Operators Comments Input and Output Bits and Bytes Binary Numbers Hexadecimal Numbers Boolean Algebra