cin

C++ is equipped with another operator used to request values from the user

The user usually provides such a value by typing it using the keyboard

The cin operator is used for that purpose

(Pronounce “see in”)
It displays a blinking cursor on the monitor to let the user know that a value is expected
Uses two greater than signs [...]

Introduction

To process the information of your program or the requests that your program presents to the user, the computer uses

(B-1) Two types of storage spaces

(B-1) The hard drive

A static storage area that keeps its information all the time, almost regardless of what happens to your computer

(B-1) Random Access Memory (RAM)

This storage area keeps its information [...]

C++ Output with cout

Let’s look at how to display a message

The myfirst.cpp program (A-1)

Uses the following C++ statement (A-2):

The part enclosed within the double quotation marks is the message to print

In C++, any series of characters enclosed in double quotation marks is called a character string, presumably because it consists of several characters strung together into a larger [...]

C++ Instructions

C++ works by giving (separate) instructions to the computer

Instructions can be treated as assignments

Assignment will be…

Called a function

The primary function used in C++

Is called main

Function’s name is

Followed by an opening and a closing parentheses

Main function will always be written

At least as main()

When a program is written and you ask the computer to “execute” it, the [...]

Introduction to Namespaces

A namespace

A  section of code
Delimited and referred to using a specific name
Give a common name to that portion of code so that, when referring to it, only entities that are part of that section would referred to

A namespace is created to

Set apart a portion of code with the goal to reduce, otherwise eliminate, confusion

How to [...]

Introduction to Header Files

The libraries are

(Also) called header files

And, as computer files

They have the extension “.h”

house.h
person.h
They could have any name

iostream

Asks the computer to display stuff on the monitor’s screen

How to put a library in your program

Put it at the beginning of the file (A-1)

Example of (A-1)

iostream.h

How to use a library in your program

Simply include it by using the [...]