🧩 C++ Data Types

Soumik DastidarSoumik Dastidar
1 min read

🧱 What Are Data Types?

Data types tell the compiler what kind of data a variable will hold. Using the right type ensures memory efficiency and accuracy.


🔠 Built-in Data Types

TypeMeaningExample
intInteger valuesint age = 21;
floatDecimal numbersfloat temp = 98.6;
doubleDouble-precision floatdouble pi = 3.14159;
charSingle characterchar grade = 'A';
boolTrue/Falsebool passed = true;
stringText (needs <string>)string name = "Alex";

💡 Tips

  • Use float or double for decimal calculations.

  • Prefer string over char[] for text manipulation.

  • Use const for values that shouldn’t change.


💼 Task for You

🔧 Task:
Declare one variable of each type and print their values in a formatted sentence.


🎯 What’s Next?

With variables and data types covered, you're ready to manipulate them. Let’s jump into operators — the tools to perform calculations and logic in C++.


📚 Follow the Series: C++ Zero to Hero

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Written by

Soumik Dastidar
Soumik Dastidar

I'm Soumik—a passionate problem solver, aspiring software developer, and lifelong learner. Currently building a C++ Complete Series to help beginners master programming from scratch. I love breaking down complex concepts, automating real-world tasks, and sharing what I learn. Let's grow together, one line of code at a time.