Sean Damon - Computer Programming for Kids : An Easy Step-by-Step Guide For Beginners To Learn Programming And Coding Skills
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COMPUTER PROGRAMMING FOR KIDS
An Easy Step-By-Step Guide For Beginners To Learn Programming And Coding Skills
SEAN DAMON
Copyright 2020 - All rights reserved.
The content contained within this book may not be reproduced, duplicated or transmitted without direct written permission from the author or the publisher.
Under no circumstances will any blame or legal responsibility be held against the publisher, or author, for any damages, reparation, or monetary loss due to the information contained within this book. Either directly or indirectly.
Legal Notice
This book is copyright protected. This book is only for personal use. You cannot amend, distribute, sell, use, quote or paraphrase any part, or the content within this book, without the consent of the author or publisher.
Disclaimer Notice
Please note the information contained within this document is for educational and entertainment purposes only. All effort has been executed to present accurate, up to date, and reliable, complete information. No warranties of any kind are declared or implied. Readers acknowledge that the author is not engaging in the rendering of legal, financial, medical or professional advice. The content within this book has been derived from various sources. Please consult a licensed professional before attempting any techniques outlined in this book.
By reading this document, the reader agrees that under no circumstances is the author responsible for any losses, direct or indirect, which are incurred as a result of the use of information contained within this document, including, but not limited to, errors, omissions, or inaccuracies.
Table of Contents
W elcome to the world of computer programming for kids, or the act of writing a program to tell your computer what to do. Programs are written using a series of instructions in a particular language, three of which I will be talking about here Java, SQL, and C++.
Computer programming is not as difficult as it first looks, and it can be a lot of fun, as long as you do it properly. I have prepared a basic Hello, World! tutorial for each of the three languages, just to give you an idea of how it all works. Apart from this, I have also enclosed some useful tips for beginners and the common mistakes that newbies tend to make while programming.
Simply, programming environment is a software that will allow you to create, compile, and execute computer programs on the system. It is an interface between the programmer and the computer, which will convert the programs that you will write into the computers language and ask it to execute the same for you. Therefore, before you pick up any programming language, be sure to enquire about the required programming environment and how the same can be set up on the computer that you intend to use for your programming course.
Digging deeper into the programming environment and its setup, it is made up of three basic elements, namely text editor, compiler, and interpreter. In all probability, you will need all these three components for your course. So, before you go searching for them, let us help you understand what they exactly are and why you will need them.
A text editor is a simple text program that will allow you to create text files in which you will write your code. Depending on the programming language you are working on, the extension of the text file will change, for instance, if youre programming in C language, your text files will have the extension .c.
If you are working on a Windows machine, you can simply search for Notepad in the search bar and use it as a text editor for your programs. You can also explore Notepad++ for some advanced options. It is freely available and you will just need to download and install it on your machine. On the other hand, if you are a Mac user, you can explore text editor options like BBEdit and TextEdit.
Now that you have written the program and you are all ready to test if you have written it correctly or not, you have to give it to the computer and see if it understands what you are trying to communicate. However, the computer only understands binary language, and what you have written is far from what it can directly digest. Therefore, this file needs to be converted into a binary format.
If you have made syntactical errors and not followed the rules of the programming language, the compiler will not be able to make this conversion smoothly and will raise an error message for you. Therefore, the compiler is a program that checks if you have followed the syntactical rules of the chosen programming language and converts the text file into its binary form. Moreover, this process of conversion is referred to as compilation.
Most programming languages like C, Java, C++, and Pascal, besides many others, require compilation, and you will need to install their respective compilers before you can execute any programs written using them.
Unlike the programming languages mentioned above, there are some other programming languages like Python and Perl that do not require a compiler. Therefore, instead of a compiler, they need an interpreter, which is also software. The interpreter simply reads the program from the text file and as it parses the file, it converts the contents of the file and executes them. If you are working on any such programming languages, remember to install the corresponding interpreter on your system before starting.
If you havent worked with a computer before or have little to no experience in installing software on the computer, technical advice from an expert is recommended. However, be sure to do the installation yourself, as it will help you build an acquaintance with the device that you will work with in the near future.
Besides this, if your computer does not support the installation of any of the programming environment elements, you can also make use of the online compilers and interpreters that are available for all the different programming languages nowadays. All you need is a good Internet connection and a web browser to open these online facilities and get started with your programming lessons and practice sessions right away.
What Is a Programming Language and Popular Programming Languages
There are three main categories of computer programming language:
This is the default computer language that is built in primitive instructions represented to the computer in binary code. Thus, if you want to instruct a computer, you must write in binary code. Here is an example of hello world in binary:
01001000 01100101 01101100 01101100 01101111 00100000 01110111 01101111 01110010 01101100 01100100
Assembly languages are alternatives to machine languages. They use mnemonics to represent machine language instructions. Since computers cannot understand assembly language, we use a program called an assembler to convert assembly language code into machine language code. Compared to machine languages, assembly languages are relatively easier to learn and use, but they are still tedious because they are closer to machine language.
The late 1990s ushered in the development of a new generation of computer programming languages called high-level programming languages.
High-level programming languages are English-like computer programming languages that are platform-independent, which means code written in high-level programming language can run on any machine or computer.
Almost every programming language in use in the modern programming world is high-level. These languages use statements to instruct a computer to perform sets of instructions. Here is an example of calculating the sum of two numbers using modern programming languages:
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