Programming Basics

In this section, we will cover the basics of programming, including variables, data types, and basic operations.

Variables

Variables are used to store data in a program. They have a name and a data type. In C++, you need to declare the variables before you can use them.

1#include <iostream>
2using namespace std;
3
4int main() {
5  // Example: Variables
6  string playerName = "Kobe Bryant";
7  int pointsScored = 81;
8
9  // Output
10  cout << "Player Name: " << playerName << endl;
11  cout << "Points Scored: " << pointsScored << endl;
12
13  return 0;
14}

In the above example, we declare two variables: playerName of type string and pointsScored of type int. We then assign values to these variables: Kobe Bryant for playerName and 81 for pointsScored. Finally, we use the cout statement to output the values of these variables.

When naming variables, it is important to use meaningful names that describe the data they store. This makes the code more readable and easier to understand.

Data Types

In C++, every variable has a data type that determines what kind of data it can store. Some common data types in C++ include:

• int - for whole numbers
• float - for floating-point numbers
• double - for double-precision floating-point numbers
• char - for single characters
• bool - for boolean values (true or false)
• string - for sequences of characters

Basic Operations

Once you have variables with values, you can perform various operations on them. Some basic operations include:

• Arithmetic operations (+, -, *, /, %)
• Comparison operations (==, !=, <, >, <=, >=)
• Logical operations (&&, ||, !)

These operations allow you to manipulate and compare values to perform different tasks in your program.

Now that you have an understanding of variables, data types, and basic operations, you are ready to dive deeper into the world of programming!

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#include <iostream>

using namespace std;

​

int main() {

  // Example: Variables

  string playerName = "Kobe Bryant";

  int pointsScored = 81;

​

  // Output

  cout << "Player Name: " << playerName << endl;

  cout << "Points Scored: " << pointsScored << endl;

​

  return 0;

}