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

cleaning help near Mundelein ..
In The News:

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.
FDA approves first human trial for Paradromics' brain-computer interface that could restore speech for paralyzed patients through neural technology.

Falling in Love With More Than One Screensaver: The Fun Part

Having from five to ten and more favorite screensavers is... Read More

Business Planning Software

Once a business idea is selected, it is highly recommended... Read More

CROOK: A Methodology for the Refinement of Forward-Error Correction

Table of Contents1) Introduction 2) Related Work 3) Framework 4)... Read More

Story Development Software: Good or Evil?

In the early days of the personal computer, we're talking... Read More

Groove Network. Are you in it?

If you are in a business that passes documents around... Read More

Dreamweaver vs FrontPage

There are two major WYSIWYG(What You See Is What You... Read More

40/sec to 500/sec

IntroductionSurprised, by the title? well, this is a tour of... Read More

Keeping Track

One of the things we can be as certain of... Read More

Linux Vs. Windows

This article will not attempt to advocate the use of... Read More

Algebra Help Software

Need help making sense of algebra? Have algebra lectures in... Read More

Software: What Suits Me?

Almost all new and major brand of PCs come with... Read More

Spyware: What It Is and How to Combat It

Spyware is software or hardware installed on a computer without... Read More

Cisco Certification: Introduction To ISDN, Part III

Configuring PPP PAP AuthenticationNow we know how the ISDN link... Read More

Can You Calculate Complex Financial Calculations?

Are you a whiz at calculating financial information? Not the... Read More

HSphere Control Panel Tips and Tricks - Power At Your Fingertips: Part 1

The first topic we are going to discuss... Read More

Top Questions to Ask Before Buying a Help Desk & Asset Management Software

#5 All your hardware components like Printers, PCs etc come... Read More

How the Firefox: How to... Manual Helped Me

A few months back I really got sick of my... Read More

Getting Patched with Windows Service Pack

Are you one of those people that keeps track of... Read More

Why do Manufacturers Invest in Business Management Software?

With many manufacturing shops heading over seas in favor of... Read More

Microsoft CRM Implementation & Customization: MS CRM Fax Gateway

With this small article we are continuing Microsoft Business Solutions... Read More

Spyware - The Internet Devil Of Our Times!

Spyware and Adware infest over 90 percent of computers in... Read More

Microsoft CRM Development

Microsoft CRM is CRM answer from Microsoft Business Solutions.The whole... Read More

Know-how in Microsoft Publisher

For those who still don't know, Microsoft Publisher helps computer... Read More

Microsoft Great Plains - Typical Problems And Fixes ? Overview For IT Administrators

How to delete the user? This is the first problem... Read More

Microsoft Navision Integration with Microsoft RMS - Overview for IT Specialist

Microsoft Business Solutions Navision serves both European and American megamarkets.... Read More

reliable maid service Wilmette ..