- Before You Start To Code
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- Computer Programming Tutorial in PDF
- Programming Basics for Beginners - Common Terms, Practices and Principles
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When you first set out to learn the science and art of computer programming, there is a huge amount to learn and it can sometimes seem a little bit overwhelming.
You are effectively learning a whole new language to write your code in, at the same time as learning a wide range of new concepts, principles, working practices, technical terminology, software tools and more. That's quite a lot to take in all at the same time. Because of this I think that it is well worth taking the time to learn some programming basics before you even start learning the ins and outs of a programming language and writing your first line of code.
These basics include common terminology, working practices, and software tools.
The purpose of this article is to introduce you to some of these programming basics, which you are likely to come across no matter which language you decide to learn.
You can't write code in a word processor, because the document will contain formatting which itself is created using programming code. You can choose to use a basic text editor of the kind which comes pre-installed on most computers and which doesn't use any formatting, such as the notepad program, but it is much better to get yourself a proper 'code editor'.
Don't worry - there are plenty of good ones available for free I've include links to the right of this text. Code editor software makes programming much easier, by making your code more readable and offering you a range of handy features.
The first thing that you will notice when using a code editor is that each line is numbered. This makes it easier find things - including errors as you will often be told where in your code the problem has occurred when there is an error. Numbered lines mean that you can easily write a change log to keep track of exactly where modifications to a program have been made, and if you are collaborating it means that you can point a colleague to a particular place with ease. When you start writing your code you will notice that the program adds colour coding to make it more readable.
Because many types of code include the use of brackets, which are there to organise the code and which can cause errors if they are not opened and closed properly, many editors let will highlight the closing bracket when you click next to the opening bracket, and vice versa. They will also automatically indent lines of your code where appropriate.
Before You Start To Code
If you look in the example picture below, you will also see a line down the side with little squares that feature either a plus or a minus sign. These can be used to collapse or expand sections of your code, which is useful when you are working on larger pages. Most code editors also give you a button to you run your code in your choice of browser, allow you to add plug-ins to customize your editor, and use a range of advanced search features and more.
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Taking the time to pick out a good editor and explore its various functions before you actually need them is a really good idea. Programming languages are just like human languages - they have their own 'syntax', or rules to describe how statements should be written. You will find that many programming languages share a great many common features and functions, but each one will have their own syntax rules. Getting the syntax right is very important, and as a beginner you will find that many of your errors end up being down to a missing semi-colon, bracket or apostrophe.
The solution is to take your time, proofread as you go, and use a good code editor which highlights your syntax and gives each element a different colour.
When you are writing code it is very important to maintain readability. It is not just the computer that needs to be able to read your code and understand what it means - there is a good chance you will need to read back over your code at a later date to make changes or to copy something for a new program!
Computer Programming Tutorial in PDF
Taking a bit of time to choose descriptive words as names for things like variables and functions can really help with this. Structuring your code with indentation is also useful, and you will learn how to do this alongside your language of choice. Each language will have its own format for indentation, but unless you are learning a language like Python where blank spaces are part of the syntax, this is just for your own benefit.
Commenting is also very important.
Programming Basics for Beginners - Common Terms, Practices and Principles
Even when you are an experienced programmer you will find that some code is difficult to read and would take a long time to work through if you wanted to figure out exactly what is happening. Placing regular comments in your code to explain what it is doing is a very important habit, and one which you should work on developing from the very start of your programming career.
Good commenting is an art form, as you need to include as much information as possible in as short a space as possible. Being good at programming isn't like being good with gadgets - you have to read the instruction manual.
The term 'documentation' refers to the instruction manual which will be provided for any language you learn, as well as for third part resources and for SDK's and API's see below.
As a developer, you will spend a lot of time reading documentation. And the more time you devote to this, the better you will be at your job. The simple fact is that no course will teach you everything that you ever need to know about a programming language - and even after getting years of experience under you belt there will still probably be things you aren't sure about.
Getting used to reading and using documentation is very important, and when you start to learn a programming language it is a great idea to browse through the documentation to complement any course you are doing - even if a lot of it doesn't make much sense to start off with! Libraries are another very useful repository for information, and it is well worth finding a few good quality libraries and familiarizing yourself with them when you start to learn a new language.
Essentially a library is full of pre-written code which you can use to implement common features without having to write a everything from scratch yourself.
In Python you can use 'modules' to import a set of functions with a single line.
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A good knowledge of libraries and modules can save you a great deal of time and trouble! Pseudo code is an informal general description of what a piece of code should or does do, written in regular English or whatever your language is! It is essential partway between code and human language. It uses a logical and even mathematical style to explain the purpose of a piece of code, but without any of the formal structure and syntax of actual code.
There are no rules for creating pseudo code, so you are free to use it however works best for you. An integrated development environment IDE , sometimes also known as an interactive development environment, is essentially one step up from a basic code editor. An IDE includes a source code editor, as well as ' build automation ' tools to automate various tasks, a debugger to help you to identify and fix errors, and perhaps a compiler see common terminology below , access to code libraries, and more.
Many popular IDE's support multiple languages, but you must ensure that your choice of IDE is appropriate for the language you are learning. GIT is a term for a piece of distributed revision control software which is also used as a source code management system SCM. It is a commonly used tool for developers to keep track of changes that they make to their projects revision control - which is very important because if there is a problem with your code you will want an easy way to go back to a previous stable version.
It is also used to store and share 'repositories' - libraries full of general code that can be reused on different projects, so you don't need to write common features all over again. Software such as the very popular GitHub also includes powerful collaboration features for teams to work jointly on a project, or for interested parties to contribute towards open source projects. A 'software development kit' or SDK is a bundle of software tools for the creation of new applications for a specific platform or framework.
For example, if you want to develop an app for Android smartphones then you will need to download and install the Android SDK on your computer. Often SDKs are free, but some companies will charge new developers for the download. There may also be a range of different license options - so make sure you download the correct SDK for your purposes. They contain a set of rules through which your code can communicate with third party software or websites.
You can use API's to access content and features from, or develop apps for, popular websites such as Twitter or YouTube.
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This kind of API is generally free to use, as the development of third party tools and integration into other websites can be a very powerful promotional tool for a big site. Another kind of API is created by 'software as a service' companies to offer advanced functionality to your site. You will generally have to pay for access to these.
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Comments are not for promoting your articles or other sites. Thanks for sharing such great stuff with us and we would like to add this content on our blog i. I find this article pretty interesting and helpful. Hi, I am new with programming and I like this useful tutorial of yours. I want to translate this article in Turkish and write it in my blog for those who are enthusiastic with programming but can not understand English language.
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Can I do this? And of course I will show your site as a reference and a source. I'm familiar with basic HTML which I've used with a standard Windows Notebook for my own websites , but have to admit I'm still a bit lost when it comes to the sort of things you're talking about. Nevertheless, very interesting.
Thanks for sharing. Very informative and I've never heard of "Yoda coding" or seen anyone do it before. Thanks very much Dean for this nice, succinct outline of some basic concepts. I am just starting out on the journey of learning programming to see where it might take me, so this has been very helpful. Other product and company names shown may be trademarks of their respective owners. HubPages and Hubbers authors may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.
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Download: Basic Programming Principles.pdf
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Dean Walsh more. Before You Start To Code When you first set out to learn the science and art of computer programming, there is a huge amount to learn and it can sometimes seem a little bit overwhelming. A Beginners Guide to Code Editors You can't write code in a word processor, because the document will contain formatting which itself is created using programming code. Don't worry - there are plenty of good ones available for free I've include links to the right of this text Code editor software makes programming much easier, by making your code more readable and offering you a range of handy features.
Syntax Programming languages are just like human languages - they have their own 'syntax', or rules to describe how statements should be written. Yoda Coding. Commenting, Indentation and Readability When you are writing code it is very important to maintain readability. Do you ever read the instruction manual?
Yes No Only when there's a problem See results. Documentation and Libraries Being good at programming isn't like being good with gadgets - you have to read the instruction manual. Pseudo Code Pseudo code is an informal general description of what a piece of code should or does do, written in regular English or whatever your language is!
Writing down your intentions in a very logical way like this before you start can make it easier to figure out where to start with actually writing the code and what structures you will need to use. Commenting: Pseudo code can sometimes be used for comments to explain your code in a succinct and easy to read way. Sometimes you can even use the pseudo code you wrote when you started out as the basis for your comments perhaps divided up and put in the relevant location so that you don't need to write anything new for your comments!
Eclipse The Eclipse Foundation open source community website.