BASIC COMPUTER PROGRAMMING IN C++
Introduction to Programming in C++
C++ is a highly efficient and flexible programming language that forms the basis for many modern software technologies. This session aims to introduce you to the fundamentals of programming in C++.
Objectives of This Session
– Understand the basic structure of a C++ program.
– Learn about variables, data types, and basic input/output.
– Write simple C++ programs to reinforce understanding.
1. Overview of C++
History and Significance:
Developed by Bjarne Stroustrup in 1985, C++ is known for its performance and is widely used in system/software development, game programming, and real-time simulation.
Characteristics of C++:
It is a statically typed, free-form, multi-paradigm, compiled language that supports procedural, object-oriented, and generic programming.
2. Setting Up the Development Environment
IDEs and Compilers:
– GCC (GNU Compiler Collection)
– Visual Studio Code with C++ extension
– Dev-C++
Installation Guides:Installation Guides:
– [Dev C++ Setup] (www.geeksforgeeks.org/how-to-download-and-install-dev-c-on-windows/)
– [Visual Studio Code Setup] (https://code.visualstudio.com/docs/languages/cpp)
– [Code With Harry for learning C++] (https://bit.ly/4b3XLUy)
3. Structure of a C++ Program
Basic Structure:
#include<iostream>
using namespace std;
int main() {
cout << “Hello, world!”;
return 0;
}
Explanation:
– `#include<iostream>`: Includes the Standard Input Output library.
– `using namespace std;`: Standard namespace.
– `main()`: The main function where execution begins.
– `cout`: Standard character output stream.
– `return 0;`: Ends the program.
4. Basic Concepts in C++
Variables and Data Types:
– Integers, characters, floating-point numbers, and booleans.
– Variable declaration and initialization: `int age = 30;`
Input/Output Operations:
– Input using `cin`: `cin >> age;`
– Output using `cout`: `cout << “Age: ” << age;`
5. Writing Your First Program
Program to Add Two Numbers:
#include<iostream>
using namespace std;
int main() {
int num1, num2, sum;
cout << “Enter two numbers: “;
cin >> num1 >> num2;
sum = num1 + num2;
cout << “Sum = ” << sum;
return 0;
}
6. Practical Tips
Debugging Tips:
Use `cout` to print variable values to debug.
Practice Problems:
– Write a program to calculate the area of a rectangle.
– Create a simple calculator that performs basic arithmetic operations.
7. Getting Started with Learning
Resources:
– [Code With Harry for learning C++] (https://bit.ly/4b3XLUy)
– [W3 Schools for learning C++] (https://www.w3schools.com/cpp/)
Conclusion
This session provides an introduction to the fundamental concepts of programming in C++. Understanding these basics is crucial for your journey in learning more complex aspects of the language.
