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Learn C++ for free with this interactive course, and get a handle on one of the most popular programming languages in the world.

You'll start with a simple hello world program and proceed to cover core concepts such as conditional statements, loops, and functions in C++, before moving on to more advanced topics like inheritance, classes, and templates, along with much more.

By the time you're done, you'll be an intermediate level C++ developer, ready to take on your own projects.

Learn C++ from Scratch

Which of the following is true about templates?
``` 
1) Template allows code to be written for different data types.
2) A single function can be used for all data types including user defined types.
3) One class can be used for all data types including user defined types.
4) Template is example of compile time polymorphism
```

Which of the following is true about templates?
<pre><code>1) Template allows code to be written for different data types.
2) A single function can be used for all data types including user defined types.
3) One class can be used for all data types including user defined types.
4) Template is example of compile time polymorphism
</code></pre>

Which keyword can be used in template?

Compiler Error in last `cout` statement as call to maximum is ambiguous

What is the output of the following program?
```
template <typename T>
T maximum(T a, T b)
{
 return (a > b)? a : b;
}
int main()
{
 cout << maximum(4, 6) <<endl;
 cout << maximum(4.0, 6.1) <<endl;
 cout << maximum(4, 6.5) <<endl;
 return 0;
}

```

What is the output of the following program?
<pre><code>template &lt;typename T&gt;
T maximum(T a, T b)
{
 return (a &gt; b)? a : b;
}
int main()
{
 cout &lt;&lt; maximum(4, 6) &lt;&lt;endl;
 cout &lt;&lt; maximum(4.0, 6.1) &lt;&lt;endl;
 cout &lt;&lt; maximum(4, 6.5) &lt;&lt;endl;
 return 0;
}

</code></pre>

What is the output of the following program?

```
template <class T>
class Score
{
private:
 T value;
public:
 static int counter;
 Score() {counter++;}
};
 
template<class T>
int Score<T>::counter = 0;
 
int main()
{
 Score<int> x;
 Score<int> y;
 Score<double> z;
 cout << Score<int>::counter<< endl;
 cout << Score<double>::counter<< endl;
 return 0;
}
```

What is the output of the following program?
<pre><code>template &lt;class T&gt;
class Score
{
private:
 T value;
public:
 static int counter;
 Score() {counter++;}
};
 
template&lt;class T&gt;
int Score&lt;T&gt;::counter = 0;
 
int main()
{
 Score&lt;int&gt; x;
 Score&lt;int&gt; y;
 Score&lt;double&gt; z;
 cout &lt;&lt; Score&lt;int&gt;::counter&lt;&lt; endl;
 cout &lt;&lt; Score&lt;double&gt;::counter&lt;&lt; endl;
 return 0;
}
</code></pre>

A short quiz to test your understanding of templates in C++

Introduction

Variables & User Input

Simple Maths

Conditional Statements

Loops

Functions and Recursion

C++ Exam 1

Pointers & Arrays

C++ Exam 2

Classes and Inheritance

Templates

C++ Exam 3

Quiz