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PODCAST

How to Program with Java Podcast

Trevor Page: Java Guru | Programmer | Teacher

Learn how to program using the Java programming language. This podcast will teach you step by step how to use the Java programming language to create your own applications or web applications!

technology software how-to

All Episodes

59:29

Hibernate - Creating Data Access Objects (DAOs)

How to Program with Java Podcast ·

2014/07/15

Data Access Objects – What are they? Data Access Objects (or DAOs for short) are used as a direct line of connection and communication with our database. DAOs are used when the actual CRUD (CRUD = Create, Read, Update, Delete) operations are needed and invoked in our Java code. These data access objects also represent the “data layer” of our application. These objects are still just plain old Java objects that incorporate the use of some Hibernate annotations to give them the functionality we

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59:24

Hibernate's most important annotation - @Entity

How to Program with Java Podcast ·

2014/07/08

What You’ll Learn The focus of this podcast / blog post is to teach you how to create the connection between your Java objects and the SQL Database tables. Remember, the whole point of the Hibernate framework is for you to be able to write Java code that allows you to communicate with your database. When I say that the goal is to communicate with your database, what I mean is: Create the tables (if they’re not already there) that will represent your Java objects Give Java the ability to send

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01:01:10

Hibernate Persistence for Beginners

How to Program with Java Podcast ·

2014/07/03

What is a Persistence Framework? As the name implies, it has something to do with persisting things... this means that we're still talking about databases. But what is it that we are persisting with this framework? Objects (of course) A persistence framework is something we use in Java to bridge the gap between Java and SQL. Hopefully we've gone through all of my previous tutorials and have learned a thing or two about Java and SQL. But one thing I haven't taught you yet, is how to put your

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48:11

The SQL Subquery

How to Program with Java Podcast ·

2014/06/25

The SQL Subquery Now that you’ve learned about SQL Joins, aggregate functionsand the group by keyword, it’s time we moved on to our final topic in our SQL tutorial series. Today you’ll be learning all about SQL Subqueries, how to use them and when you should use a SQL subquery. So, what is a subquery? First and foremost, let’s get the jargon out of the way. A subquery can also be referred to as a nested query. It’s just like having a nested if statement in your Java code. Essentially what

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47:00

SQL Group By

How to Program with Java Podcast ·

2014/06/16

After having talked about all the SQL Aggregate functions, there’s one more topic that goes hand in hand with what we’ve already learned… The group by keyword. This particular keyword allows us to take a bunch of data and mash it all together into matching groups and then perform aggregate functions on those groups (like sum and avg). You might ask yourself why you’d want to “mash together” a bunch of data. The answer to this is best explained with an example, but let me try to put it in regular

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32:12

SQL Aggregate Functions

How to Program with Java Podcast ·

2014/06/05

In today’s podcast episode you’ll be learning all about the aggregate functions that exist in SQL. What the heck is an aggregate function? Well that’s what I’m going to try and teach you today, and I promise, it’s not a difficult concept to grasp. Just think of an aggregate function as a method that you’re calling that will process data in your database and return a value. Obviously the returned value will depend on which of the aggregate functions you choose to use. So that begs an obvious

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57:26

Database Joins

How to Program with Java Podcast ·

2014/05/28

There are three categories of joins that you can make use of in SQL: Inner Join Outer Join Cross Join But before we dive into the categories of joins, we first need to have an understanding of what a join really is. Joins are used in SQL to bring together all the relevant data from multiple database tables. Remember that we've broken data down into multiple tables and established relationships between the tables. ... More via show notes: http://howtoprogramwithjava.com/session46

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55:31

Enforcing Database Relationships Part II

How to Program with Java Podcast ·

2014/05/23

In this SQL tutorial episode/post we’re going to learn how to enforce our SQL relationships that we’ve already learned about. We’re going to be tackling the one-to-one and many-to-many relationships and we’re going to learn how to write the code to enforce these relationships in our database. As outlined in the podcast, we are going to be focusing on the many-to-many relationship with the author and bookexample. Remember that one author can publish many books, and one book can be written by many

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01:02:19

Creating Database Tables in MySQL

How to Program with Java Podcast ·

2014/05/14

You’ve learned all about how to create sql queries to read, write, update and delete data… but you haven’t yet learned how to create the tables where you’ll be doing the reading, writing, updating and deleting. So that’s what today’s podcast is all about, be sure to click the play button above this to listen to the show and then follow along with the notes via http://howtoprogramwithjava.com/session44

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44:01

Database Relationships: Many-to-Many and One-to-One

How to Program with Java Podcast ·

2014/05/14

Show Notes available via: http://howtoprogramwithjava.com/session43 In this post we will be expanding on the topic of database relationships and touch on two that are less common but just as useful. Many-to-Many Relationship The many-to-many database relationship is used when you are in the situation where the rows in the first table can map to multiple rows in the second table… and those rows in the second table can also map to multiple (different) rows in the first table. One-to-One

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32:16

Database Relationships – One to Many

How to Program with Java Podcast ·

2013/12/12

We’ve talked about relational databases already, and we’ve learned why this type of database management really dovetails with the object oriented programming model. So now I want to dive into the specifics when it comes to relationships. What are the different types of relationships in SQL? There are three types of relationships you can have in SQL, they are: One-to-Many One-to-One Many-to-Many In this episode we are going to be focusing on the One-to-Many relationship as it’s the most commonly

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0:00

Database Terminology - Relationships, Joins and Keys

How to Program with Java Podcast ·

2013/12/04

Terminology It's the foundation when learning any new concepts. In this episode of the "How to Program with Java Podcast" we will be talking about some new database terminology. One of the most important aspects of modern databases is the fact that they allow you to define relationships. Relationships between tables allow you to break data up into its individual "areas of interest". But when you break the data up, you'll need to know how to put it back together. This is accomplished using

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55:16

CRUD Operations - Syntax for Interacting with your...

How to Program with Java Podcast ·

2013/11/28

What’s all this CRUD about? Create Read Update Delete 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.

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0:00

Intro to Databases and SQL

How to Program with Java Podcast ·

2013/11/13

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: What exactly is a Database, and what ulitimate purpose does it serve? Why are modern databases referred to as relational databases? What a database does, day in and day out, it's sole purpose in life is essentially CRUD! How does SQL fit into the database equation Why it was

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32:15

Let's talk AJAX - It's not just for cleaning anymore!

How to Program with Java Podcast ·

2013/11/07

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? The difference between an HttpRequest and an XMLHttpRequest Why it's annoying when your website has to refresh every

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54:12

Intro to Algorithms and Big-O Notation

How to Program with Java Podcast ·

2013/10/30

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

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49:37

Spring Security

How to Program with Java Podcast ·

2013/10/23

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.

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42:43

Data Binding with Spring Framework

How to Program with Java Podcast ·

2013/10/16

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

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55:07

Spring Framework - Fun with Controllers

How to Program with Java Podcast ·

2013/10/09

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

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49:17

Intro to the Spring Framework

How to Program with Java Podcast ·

2013/08/15

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

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112 results

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