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 team near Winnetka ..Music downloads are off the charts! We're listening to digital... Read More
Writing software manuals is boring, isn't it? We often think:... Read More
In the previous ISDN article, we looked at how and... Read More
I have yet to see a business that, sometimes in... Read More
Almost all new and major brand of PCs come with... Read More
Running Applications in Compatibility Mode With Windows XP, you can... Read More
Microsoft Word is one of the most popular office applications... Read More
Crystal Reports is the most flexible tool on the market... Read More
Most people don't use Photoshop to its fullest capabilities. Here... Read More
Mapping Software Improves Data VisualizationFrom the outset, it is important... Read More
Looks like Microsoft Great Plains becomes more... Read More
IBM Lotus Notes with Domino email server is traditional document... Read More
While I was preparing some personal background information for a... Read More
Stealing company information used to be the specialty of spies... Read More
Remember nice and prosperous Clinton era? When you implemented innovative... Read More
What is Colossus?Colossus is software licensed to about twenty-five insurance... Read More
There are plenty of articles out there about how to... Read More
Viruses and spyware usually show up on your computer one... Read More
Many Webmasters have never bothered to view their website's server... Read More
Microsoft Client Relation Management system (Microsoft CRM) and Microsoft RMS... Read More
Homeland security, airport security, Internet security ??" these days we???re... Read More
Microsoft Great Plains is main mid-market application from Microsoft Business... Read More
This is intermediate level SQL scripting article for DB Administrator,... Read More
ERP Consulting industry is on the way to serve clients... Read More
The vast majority of us will have, at some point,... Read More
family-safe home cleaners Northbrook ..Microsoft Business Solutions Great Plains has substantial market share among... Read More
Did you ever give a thought to the number of... Read More
This article is the third of a series of articles... Read More
No matter how much you enjoy your favorite screensavers, sometimes... Read More
In our small article we'll consider Microsoft Business Solutions Great... Read More
C++ Function templates are those functions which can handle different... Read More
Traditionally we were considering functionally rich systems, such as SAP,... Read More
Microsoft Business Solutions is now in process of creating so... Read More
Let's first look at your ERP system selection (without Retail... Read More
While Adobe is the most known maker of PDF tools,... Read More
IBM Lotus Domino or Microsoft Exchange?The severe competition continues for... Read More
Usually workflow & messaging is realized in CRM and then... Read More
An operating system (abbreviated OS) is essentially the path through... Read More
SyncUp, a file synchronizer is designed to assist the home... Read More
It is really interesting that a bug can create problem... Read More
Microsoft Great Plains fits to majority of horizontals and retail... Read More
While I was preparing some personal background information for a... Read More
Programming Help for BeginnersWe write programs to instruct computers. When... Read More
Current Microsoft Business Solutions Great Plains has more that 10... Read More
Siebel is traditional CRM market leader, however and mostly due... Read More
The objective for Zandi Digital is to make available clever... Read More
Microsoft Business Solutions Small Business Manager is Great Plains Dexterity... Read More
Combining Microsoft Business Solutions Great Plains ERP with non-Microsoft Business... Read More
MSN messenger is a pretty cool invention. I mean I'm... Read More
Microsoft Great Plains, Navision, Solomon and Axapta are Microsoft Business... Read More
Software |