C++ Data Types

🔢 C++ Data Types – Understand Basic Types in C++

In C++, data types tell the compiler what kind of value a variable will hold. Think of them as labels on storage boxes 📦.

💡 Types of C++ Data Types:

• int: Stores whole numbers (e.g. int age = 30;)
• float: Stores decimal numbers (single precision) (e.g. float temp = 36.6;)
• double: Stores decimal numbers (double precision) (e.g. double pi = 3.14159;)
• char: Stores a single character (e.g. char grade = 'A';)
• string: Stores text (e.g. string name = "Alice";)
• bool: Stores true or false (e.g. bool isOn = true;)

🎯 Example: Using Different Data Types

Let’s write a small program that uses all the basic data types:

#include <iostream>
using namespace std;

int main() {
    int age = 25;
    float height = 5.8;
    double weight = 70.1234;
    char grade = 'A';
    string name = "Charlie";
    bool isStudent = true;

    cout << "Name: " << name << endl;
    cout << "Age: " << age << endl;
    cout << "Height: " << height << " ft" << endl;
    cout << "Weight: " << weight << " kg" << endl;
    cout << "Grade: " << grade << endl;
    cout << "Student Status: " << isStudent << endl;

    return 0;
}

🧠 Notes:

• float and double differ in precision. Use double for more accuracy.
• char values are enclosed in single quotes ('A'), while string uses double quotes ("Hello").
• bool returns 1 for true and 0 for false when printed.