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 ..Anti-virus software is used to find, remove or fix files... Read More
It's all about turn times in the eMedia industry! The... Read More
It is really interesting that a bug can create problem... Read More
If you are to buy a HelpDesk & Asset Management... Read More
ERP is the acronym of Enterprise Resource Planning. Multi-module ERP... Read More
In order to meet regulatory and corporate compliance requirements reporting... Read More
How would you like to prevent spyware and adware from... Read More
RSS (Really Simple Syndication) is a way for a site... Read More
IntroductionSurprised, by the title? well, this is a tour of... Read More
SyncUp, a file synchronizer is designed to assist the home... Read More
Looks like Microsoft Great Plains becomes more and more popular,... Read More
Microsoft Business Solutions Great Plains has many years of successful... Read More
We don't think about mainframe software pricing anymore, we just... Read More
The purpose of one of our projects was MS Exchange... Read More
Here is some free software tools to help you build... Read More
.Net Framework is a platform or development environment to seamlessly... Read More
eStore Advantage allows front-office applications to communicate with back-office business... Read More
Following tips help you to learn a software in lesser... Read More
CD and DVD replication is a process that works by... Read More
Microsoft Business Solutions Great Plains is marketed for mid-size companies... Read More
What is Colossus?Colossus is software licensed to about twenty-five insurance... Read More
Learning how to program software seems like a daunting task... Read More
If your company has regional and worldwide operations, you might... Read More
While I was in college, if you would have asked... Read More
This short paper will expand on two key reasons to... Read More
family-safe home cleaners Northbrook ..Microsoft Business Solutions Great Plains is written in Great Plains... Read More
Here is some free software tools to help you build... Read More
Writing software manuals is boring, isn't it? We often think:... Read More
Formatting and reinstalling windows 98 is very easy if you... Read More
Program Flow is what you think it is. How the... Read More
Bar charts, bar graphs, and any other chart or graph... Read More
There are certain pluses and minuses in both cases and... Read More
There are many commands that are used in linux on... Read More
You have gotten those E_Mails buy software at deep discounts.... Read More
The software giants don't do everything and don't always produce... Read More
For those who are unclear on the differences between the... Read More
Microsoft Business Solutions Great Plains was designed back in the... Read More
Are you a database professional? Do you work with a... Read More
CD and DVD replication is a process that works by... Read More
It's not very often I get excited about a software... Read More
Microsoft Business Solutions Great Plains is very good fit for... Read More
If you use Microsoft Outlook (or similar applications) for e-mailing,... Read More
Many Webmasters have never bothered to view their website's server... Read More
In the real world a "fire wall" is a fireproof... Read More
Whether you need to close a sale, gather end-user feedback,... Read More
Microsoft Great Plains serves majority of US based horizontal and... Read More
Microsoft Business Solutions CRM is web-based CRM application, deploying all... Read More
Anyone who has ever used Microsoft Word knows that it... Read More
Following tips help you to learn a software in lesser... Read More
Before being able to choose a secure Internet communication system,... Read More
Software |