C++ New Lines

New Lines

To insert a new line in your output, you can use the \n character:

Example

#include <iostream>
using namespace std;

int main() {
  cout << "Hello World! \n";
  cout << "I am learning C++";
  return 0;
}

You can also use another << operator and place the \n character after the text, like this : Continue reading C++ New Lines

C++ Output Numbers

C++ Print Numbers

You can also use cout() to print numbers.

However, unlike text, we don’t put numbers inside double quotes:

Example

#include <iostream>
using namespace std;

int main() {
  cout << 3;
  return 0;
}

You can also perform mathematical calculations: Continue reading C++ Output Numbers

C++ Output

C++ Output (Print Text)

The cout object, together with the << operator, is used to output values and print text.

Just remember to surround the text with double quotes (""): Continue reading C++ Output

C++ Statements

C++ Statements

A computer program is a list of “instructions” to be “executed” by a computer.

In a programming language, these programming instructions are called statements.

The following statement “instructs” the compiler to print the text “Hello World” to the screen: Continue reading C++ Statements

C++ Syntax

C++ Syntax

Let’s break up the following code to understand it better:

Example

#include <iostream>
using namespace std;

int main() {
  cout << "Hello World!";
  return 0;
}

Example explained

Line 1: #include <iostream> is a header file library that lets us work with input and output objects, such as cout (used in line 5). Header files add functionality to C++ programs.

Line 2: using namespace std means that we can use names for objects and variables from the standard library. Continue reading C++ Syntax

C++ Getting Started

C++ Get Started

To start using C++, you need two things:

  • A text editor, like Notepad, to write C++ code
  • A compiler, like GCC, to translate the C++ code into a language that the computer will understand

There are many text editors and compilers to choose from. In this tutorial, we will use an IDE (see below).

Continue reading C++ Getting Started