Introduction to Class templates
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A class template is a blueprint for creating classes based on parameterized types. They allow you to write generic code that works with different data types. Instead of creating separate classes for each data type, you define a template and reuse the logic.
In addition to function templates, there are also class templates. They share many of the same concepts, so what you have already learned applies for this as well. Look at the simple example of class template:
main.cpp
123456789101112131415#include <iostream> // Creating a template using `template` keyword template <typename T> class Box { private: T value; // Stores the value of type `T` public: Box(T value) : value(value) {} // Constructor initializes the `value` }; int main() { Box<int> intBox(123); // Creating a Box object for an integer type }
Try to pass different types to the class.
Class templates are often used as containers for data because they allow you to choose any type for storage. This flexibility enables the creation of generic data structures.
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