1 00:00:05,500 --> 00:00:09,100 In this section of the course, we'll learn about variables and constants. 2 00:00:09,900 --> 00:00:14,230 It's virtually impossible to write a c++ program without using variables. 3 00:00:14,730 --> 00:00:18,030 Variables are a fundamental concept in programming languages. 4 00:00:18,030 --> 00:00:21,830 First, we're learned what variables are and how to declare them so we can use them. 5 00:00:22,530 --> 00:00:24,830 There are rules for how we name our variables, 6 00:00:24,830 --> 00:00:27,830 and there are also styled issues to discuss as we go along. 7 00:00:28,330 --> 00:00:31,330 Then we'll go over some of the primitive types in c++ 8 00:00:31,330 --> 00:00:32,530 such as integers, 9 00:00:32,530 --> 00:00:35,030 floating point numbers Booleans and characters. 10 00:00:35,690 --> 00:00:39,490 We'll also learn how to determine how much storage is allocated to variables 11 00:00:39,490 --> 00:00:41,490 by using the size of operator. 12 00:00:42,490 --> 00:00:44,690 Then we'll learn about constants, what they are 13 00:00:44,690 --> 00:00:49,190 and what they're used and why they're so important to keeping our code correct and modifiable. 14 00:00:50,190 --> 00:00:54,790 We'll learn how to declare and use constants, understand literals and constant expressions. 15 00:00:55,090 --> 00:00:58,290 This section is very straightforward and easy to understand. 16 00:00:58,290 --> 00:01:00,890 However, the concepts you'll learn in this section 17 00:01:00,890 --> 00:01:04,390 service fundamental building blocks in c++ programming 18 00:01:04,390 --> 00:01:08,750 since nearly every program you ripe will have variables and constants. 19 00:01:08,750 --> 00:01:09,750 Lets get started.