Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Strings | Variables
Introduction to C++
course content

Contenido del Curso

Introduction to C++

Introduction to C++

1. Basics
2. Variables
3. Conditional Statements
4. Loops
5. Intro to Arrays

book
Strings

As we mentioned before strings are used for storing text. Let’s explore some useful functions using this type of variables.

To concatenate 2 (or more) lines to store the result in the new variable, use the operator +:

1234
string a = "Hello "; string b = "World"; string c = a + b; cout << c;
copy

String variables contain functions that help perform certain operations on them.

For example, you can find the length of the string variable using the built-in function .length():

12
string a = "Hello user!"; cout << a.length();
copy

For finding the length of the line you can use the funtion .size(): a.size().

You can also concatenate strings using the built-in function .append():

12
string a = "Hello "; cout << a.append("everyone!");
copy
question-icon

Concatenate two lines (a and b) and store the result in the variable c. Find the length of this new variable. Print the new line and its length:

string a = "I love C++! ";
string b = "I love programming!";
string c = a
b;

cout <<
<< endl;
cout <<
;
I love C++! I love programming!
31

Click or drag`n`drop items and fill in the blanks

¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 2. Capítulo 4
We're sorry to hear that something went wrong. What happened?
some-alt