Thu, 28 November 2013
What’s all this CRUD about?
This is the at the heart of all databases and SQL. A database essentially carries out these four operations over and over again for the duration of its existence. In this podcast, I talk about these four database operations in detail and the actual syntax that is used in a flavour of SQL known as MySQL. |
Wed, 13 November 2013
Ladies and gentlemen the time has come for you to start learning about Databases and SQL. In this episode I will talk about the very basics of databases and why it is they exist in the first place. You'll learn things like:
Learning and understanding databases is more is less a required skill in these modern days of programming, and at the very least, having knowledge about databases will give you a leg up on any competition. So pay attention boys and girls, and strap on your thinking caps, because this ride is getting started. |
Thu, 7 November 2013
AJAX (Asynchronous Javascript and XML) is a techonology used to create Rich Internet Applications (RIA). If you're asking "what the heck does that mean!?" You're in the right place In this podcast episode we will talk about the uses for AJAX and how it can lead to a much nicer web browsing experience for your Java web applications. What else will you learn about in this episode?
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Wed, 30 October 2013
An algorithm is essentially a well defined set of instructions that get carried out by a computer in an automated fashion to solve a problem. A good example of this is to say "How would you tell a computer to figure out which of the 5 balls I've given to you is the heaviest (or lightest)". In order to solve this "problem", you'll need to define a set of steps for the computer to carry out in order to reach a conclusion and solve the problem. Algorithms are very common in programming, as you are constantly trying to tell the computer how to solve problems in a step by step manner. The Big-O Notation is the way we determine how fast any given algorithm is when put through its paces. Consider this scenario: You are typing a search term into Google like "How to Program with Java" or "Java Video Tutorials", you hit search, and you need to wait about 30 seconds before all of the results are on the screen and ready to go... Would you still use Google? Or would you start shopping around with other search engines to find one that is faster? My guess is you'd start shopping around. Speed is everything these days, and building slow software is infuriating to users even if they aren't even paying for the software. |
Wed, 23 October 2013
Ever wondered how you could properly restrict access to certain parts of your web application? Do you have an application that has a user registration page and a user login page? Spring Security is the answer if you have a web application created with the Spring Framework! Spring Security will restrict access to any URLs that point to your web application based on your custom configuration. Learn how in this week's How to Program with Java podcast. |
Wed, 16 October 2013
So, the Spring framework is a wonderful help for programmers, but sometimes it needs a bit of help. It does a good job of trying to match fields on a webpage to Java objects (aka Java Beans), but sometimes when the "mapping" is complex, Spring needs our help. In this episode I will explain exactly how you can go about something known as "custom binding". This process allows you to take any text from the presentation layer and convert/bind it to the appropriate Java object (Java Bean) on the server side. |
Wed, 9 October 2013
In our last episode I talked about controllers and how they are used in Spring. In this episode I will be diving even further into Controllers in the Spring Framework and I will talk about the different parameters that can be passed into each method within each Controller. For example, there are HttpServletRequest objects, Model objects as well as @RequestParam and @ModelAttribute annotations that can be used within your Controller's methods. The beauty of the Spring framework is that you can pick and choose which ones you want to include within any given method. |
Wed, 14 August 2013
Well, so far we've been focusing on a bunch of topics that align themselves around the Java programming language in general. But now we're going to take things into a slightly new direction, we're going to be talking about the Spring Framework -- more specifically, Controllers and the Spring Framework. You see, my goal for this blog and podcast has been to not only teach you the Java programming language, but also teach you how you can build a web application. So, this is the first step in that direction. |
Fri, 26 July 2013
Today let's talk about some design patterns, namely the Observer design pattern which can be used in Java. Following the Oberser design pattern in Java is as easy as extending the Observable object and implementing the Observer interface for the appropriate objects. Don't have a clue what the appropriate objects are? Well then that's what this episode is all about! You'll learn what the design pattern is, how it can be used, and how BIG companies have used it in their powerful frameworks. Don't miss it! |
Thu, 20 June 2013
In this epsidoe of the How to Program with Java podcast, I talk with a self-taught programmer who has started up his own very successful marketing product based on his programming knowledge. Troy was graduated with a degree that would have had him working as an audio engineer, but instead took a 180 and pursued his passion for tech and programming. Now he's the big cheese (CTO) and living the dream. Find out how he did it, and how YOU too can do it on this great podcast interview. |