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Data structures is a way to organize information so that we can find, update, add, and delete portions of it efficiently. A collection of data elements whose organization is managed by the operations that are used to store and retrieve the individual data elements, for example like Stacks, trees, queues, graphs, etc. Mainly data structure is divided into two main branches - primitive data...
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In this set of tutorial we will learn object oriented programming in c++ . Object Oriented programming helps you develop softwares using a new approach. In this book you will learn the core concepts of object Oriented programming i.e inheritance , polymorphism and composition. We will learn what are these techniques and how to use these techniques as we go through the course. We will also learn...
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Introduction: This is the fourth part in my CSS Styling tutorials, in which I will be covering Borders. Order: Borders around elements come between the elements margin and padding. So, if the element has padding, the border will be away from the element whereas if the element only has margin, the border will be next the element but away from other elements. Basic Structure: The basic border...
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PHP/MySQLi Creating a Forum - Part 3 - Thread Page Introduction: This tutorial will be continuing my series of creating a forum in PHP/MySQLi/HTML. This is the fourth and (for now) the final part which is adding reply functionality. Pre-creation: First you will need a host for your PHP, either a web host or localhost is fine but you will need PHP and MySQL(i) capabilities. Also, this will not be...
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The program allows a user login up to three (3) times. After three unsuccessful attempts, the program exits. Properties of the Login Form: Login button Name: cmdValid Clear button Name: cmdClear Cancel button Name: cmdExit Textbox Name: txtPassword Tag: [Enter the password as the value of this property] PasswordChar: * Label (at the bottom) Name: lblNotify Name: "You only have 3 login attempts"...
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In my previous example about Shopping Cart with Checkout Using CodeIgniter , I have a products table but without a product management. In this code sample, you’ll learn how to manage a product with add/edit/delete function using CodeIgniter. BTW, I have change the primary key of the products table from “serial” to “id”. This code is totally a separate project. But you can also learn from our...
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The following is an important note in building a User Registration and Form Validation Using CodeIgniter . routes.php There are two lines that were change/added as follows: $route [ 'default_controller' ] = "register" ; $route [ 'success' ] = "register/success" ; autoload.php On line 55 we have added database and session to load automatically. This means that you do not need to call it in your...
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This shopping cart is using CodeIgniter framework that allows you to add/update/delete a product from the cart. I am using the database in my previous post as a fixed on the existing shopping cart I found in the internet. This code is totally different from the code at “ How to Build Shopping Cart w/ Checkout in PHP ”. It has a cleaner code, secured and most importantly easy to understand...
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Now that you’ve learned what CodeIgniter is , our next step is on how to install CodeIgniter framework on your local computer running Apache, PHP, and MySQL. You may install Wampserver to run these three applications. As you may know that a framework is just a bunch of code or a set of libraries and classes that you can reuse in your web application. So, instead of creating your own libraries and...
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I just want to share with you the code that I have found on the internet on how to open a Cash Drawer using VB.NET. I am in no way claim this code as my own work. I want to share this with you because there’s a lot of question on the internet on how to open a Cash Drawer on VB.NET. The code will simply open the cash drawer using either the LPT port or COM port.

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