Adding Elements to Vector

Now we'll start looking at methods that make working with vectors easier.

We'll start with the push_back() method, which inserts an element at the end of the vector.

We'll show how it's used with an example and then explain the notation:

std::vector carBrands = {"Mercedes", "Skoda"};
carBrands.push_back("Volvo");

// Vector content {"Mercedes","Skoda","Volvo"}

The push_back() method uses dot notation. Before the dot, we have the vector to whose end we want to add a new element. After the dot follows the push_back() method, which inserts the value in parentheses at the end of the vector. In the parentheses is the value "Volvo", which we insert at the end of the vector.

It sounds complicated, but as you can see, the code is relatively simple.

Instructions

Add a new colleague "Eva" to the vector colleagues using the push_back() method.

Print the fourth colleague.

Start programming for free

By signing up, you agree to the Terms of Service and Privacy Policy.

Or sign up with:

7/10

Adding Elements to Vector | Start Coder