Course/Module 6/Topic 1 of 3Intermediate

Templates & Generic Programming - Concepts

Explore the key concepts of templates & generic programming with practical examples and exercises.

45 min•By Priygop Team•Last updated: Feb 2026

Introduction to Templates & Generic Programming

In this section, we cover the fundamental aspects of templates & generic programming. You'll learn core concepts, see real-world examples, and understand how to apply them in your projects.

Key Concepts

Understanding the core principles of templates & generic programming
Practical applications and real-world use cases
Step-by-step implementation guides
Common patterns and best practices
Tips for debugging and troubleshooting
Performance optimization techniques

Templates & Generic Programming - Code Example

Example

#include <iostream>
using namespace std;

template <typename T>
T maximum(T a, T b) { return (a > b) ? a : b; }

template <typename T>
class Stack {
    T data[100];
    int top = -1;
public:
    void push(T val) { data[++top] = val; }
    T pop() { return data[top--]; }
    T peek() const { return data[top]; }
    bool empty() const { return top == -1; }
};

int main() {
    cout << maximum(10, 20) << endl;
    cout << maximum(3.14, 2.71) << endl;
    
    Stack<int> s;
    s.push(10); s.push(20);
    cout << "Top: " << s.peek() << endl;
    return 0;
}

Try It Yourself: Templates & Generic Programming

Try It Yourself: Templates & Generic ProgrammingC++

C++ Editor

✓ ValidTab = 2 spaces

#include <iostream>
#include <string>
using namespace std;

template <typename T, int Size>
class Array {
    T data[Size];
    int count = 0;
public:
    void add(T val) { if (count < Size) data[count++] = val; }
    T get(int i) const { return data[i]; }
    int size() const { return count; }
    void print() const {
        for (int i = 0; i < count; i++)
            cout << data[i] << " ";
        cout << endl;
    }
};

int main() {
    Array<int, 10> nums;
    nums.add(1); nums.add(2); nums.add(3);
    nums.print();
    
    Array<string, 5> names;
    names.add("Alice"); names.add("Bob");
    names.print();
    return 0;
}

Output

Click ▶ Run to see the result

Edit the code on the left, then click Run

C++|29 lines|637 chars|✓ Valid syntax

UTF-8

Quick Quiz: Templates & Generic Programming

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