C++ Tutorial 2, Input and Variables

This is the tutorial where we really get into programming. Input and variables are the essence of programming. In this tutorial you will learn how to get data from the user and use variables. You will learn the types of variables there are and how to do basic math with them. At first, this may seem boring and pointless, but you have to learn it, and it should go quick.

Basic Input
When you are making a console application, here is how you should get user input. Some of you may have guessed it, you use c[b]in[/b], of course, the 'c' meaning console and the 'in' meaning input, like 'cout'. So, here is a basic code, where the name of the variable x. cin>>x;

Defining Variables
A variable is what you guessed, a number or piece of data that will vary.

The diffrent types of variables:

bool - true or false
int - whole numbers
char - character (a, b, c, etc...)
string - multiple characters (words, etc..)
float,double - numbers that can have decimals

When deciding what type of variable to use, think about what kind of data it is going to be storing and remember that some data types use more memory than others, however most of your applications will use less memory than you have. To declare a variable, write the type of variable, then the name.

Examples:
int myInt = 7;
char thisChar= 'a', otherChar = 'b', char newChar;
string password= "password";

Syntaxes
Notice how I always had the first word not capatalized, but I capatalized all the other ones. You can also define more than one at a time, and you dont always need to set the value in the begining. Also, when you use a char, use a ' and for a string a ". Try to give your variables meaningful names.

Math
This is really the heart of programming, math! For now, we are going to be doing some simple arithmetic.

The basic math functions are:

+ = addition
- = subtraction
/ = division
* = multiplication

There are a bunch more, but that is all we need for now.

Go out and make a program!

Now that you know some of that basic stuff, try making a program, and dont be afraid to ask for help on http://www.syschat.com!

Chris Silop - http://www.syschat.com!, Computer Forum

tidy up service Glenview ..
In The News:

Criminals test stolen data by applying for deposit accounts in victims' names to prepare bigger attacks. Learn why banks won't share fraud details.
New study of 10,500+ kids reveals early smartphone ownership linked to depression, obesity, and poor sleep by age 12. Earlier phones mean higher risks.
A phone phishing attack compromised Harvard's alumni and donor database, marking the second security incident at the university in recent months.
AutoFlight's zero-carbon floating vertiport uses solar power to charge eVTOL aircraft while supporting emergency response, tourism, and marine energy maintenance.
A new phone return scam targets recent buyers with fake carrier calls. Learn how criminals steal devices and steps to protect yourself from this fraud.
New Anthropic research reveals how AI reward hacking leads to dangerous behaviors, including models giving harmful advice like drinking bleach to users seeking help.
The Fox News AI Newsletter gives readers the latest AI technology advancements, covering the challenges and opportunities AI presents.
Holiday email scams, including non-delivery fraud and gift card schemes, spike in November and December, costing victims hundreds of millions, the FBI says.
Holiday visits offer the perfect opportunity to help older parents with technology updates, scam protection and basic troubleshooting skills for safer digital experiences.
Swiss scientists create grain-sized robot that surgeons control with magnets to deliver medicine precisely through blood vessels in medical breakthrough.
Researchers exploited WhatsApp's API vulnerability to scrape 3.5 billion phone numbers. Learn how this massive data breach happened and protect yourself.
Travel companies share passenger data with third parties during holidays, but travelers can protect themselves by removing data from broker sites and using aliases.
Xpeng's humanoid robot moves so realistically that crowds believed it was fake, marking a major advancement in robotics technology ahead of 2026 commercial launch.
Researchers discover phishing scam using invisible characters to evade email security, with protection tips including password managers and two-factor authentication.
iPhone and Android users can reduce battery drain and data usage by restricting Background App Refresh to Wi-Fi connections instead of mobile networks.
Scammers nearly stole an Apple account by exploiting the support system with authentic-looking tickets and phone calls, users can protect themselves with safety steps.
FoloToy restored sales of its AI teddy bear Kumma after a weeklong suspension following safety group findings of risky and inappropriate responses to children.
Threat intelligence firm Synthient uncovers one of the largest password exposures ever, prompting immediate security recommendations.
Viral video shared by Elon Musk shows Tesla's Optimus humanoid robots performing tasks from cooking to construction, garnering over 58.5 million views on social media.
Chinese hackers used Anthropic's Claude AI to launch autonomous cyberattacks on 30 organizations worldwide, marking a major shift in cybersecurity threats.
Apple's new Sleep Score feature gives you a rating for your nightly rest quality. Learn how to set it up on your Apple Watch and iPhone today.
Essential phone settings to enable before losing your device, including Find My network, location services and security features for iPhone and Android.
The Fox News AI Newsletter gives readers the latest AI technology advancements, covering the challenges and opportunities AI presents.
Cybersecurity research shows weak passwords remain a major threat, with simple patterns and number sequences putting millions of accounts at risk.
New Android malware BankBot YNRK silences phones, steals banking data and drains crypto wallets automatically. Learn how this advanced threat works.

Anti-Spyware Protection ? Holes in the Shining Armor

Looking at all the ads which promise to get rid... Read More

SSH (SCP) Send Files from Windows to Your Linux Box

Not all of us have the luxury of working both... Read More

Passwords Used In Microsoft Word Documents

You would like to protect your documents, wouldn't you? Reasons... Read More

These Items Are A Must Before Making The Decision To Purchase Any Off-The-Shelf Software

1. What determines the software price? Is it Per Seat... Read More

Microsoft CRM Lotus Notes Domino Connector FAQ

Microsoft Business Solutions CRM and IBM Lotus Notes Domino, being... Read More

About Microsoft Sysprep (System Preparation) Utility (Windows 2000)

The Microsoft system preparation utility for Windows 2000 is a... Read More

New Web-Based HR Tool is Max From NAS, Hannibal, and InfoLink

Three highly respected names in Human Resources have joined forces... Read More

10 Steps To Secure And Manage Your Passwords

Passwords protect your most sensitive personal, financial and business information.... Read More

C++ Tutorial 1, Introduction to C++

Introduction to C++Why Learn C++?C++ may at first seem like... Read More

Microsoft Great Plains Implementation for Midsize & Large Corporation: Lockbox Processing

Microsoft Great Plains is now targeting large and midsize businesses... Read More

Google Brings the Earth to Your Desktop

Google Inc. has launched a new software package that allows... Read More

Microsoft CRM Implementation for Large Corporation ? overview

Microsoft Business Solutions CRM is now approaching the phase of... Read More

Microsoft Great Plains Integration with Legacy Systems ? Overview For Developer

Looks like Microsoft Great Plains becomes more and more popular,... Read More

Databases ? How We Love to Hate Them!

You've finally created databases that you can actually use to... Read More

Intro to UNIX Shells

A UNIX Shell is in simplest terms, a command line... Read More

Microsoft CRM Customization Secrets ? Second Edition

This article is for advanced Microsoft CRM SDK C# developers.... Read More

Three Steps To Windows Safety Heaven

Now there are Three Steps To Heaven Just listen and... Read More

Make 2005 the Year You Save Time!

Today's business world is fast-paced. No matter what it is... Read More

Manufacturing Solutions for Microsoft Great Plains ? Overview for Consultant

Microsoft Business Solutions Great Plains has full-featured manufacturing set of... Read More

Microsoft Great Plains Multicurrency ? Overview For Implementation Consultant

When you first think about multicurrency ? you probably have... Read More

Four Easy Ways To Prevent Spyware

How would you like to prevent spyware and adware from... Read More

Microsoft CRM Implementation ? Fundamental CRM Principles Revision

Microsoft CRM is relatively new player on the now becoming... Read More

Dont Choose Adobe When Working With PDF

While Adobe is the most known maker of PDF tools,... Read More

The Truth: Netzero 3G

We've all seen the ads on TV for Netzero 3G.... Read More

IT Department Skills to Support Microsoft Great Plains and Microsoft CRM

Microsoft Great Plains as ERP and Microsoft CRM as... Read More

maid service near Winnetka ..