From time to time it is necessary to execute a query without using Java’s JPA infrastructure.
In order to do it, we have to define a NamedQuery to execute. In this example, I will run an update against the database.
@Entity
@NamedQueries ({ …Today I bring an example of the different results you can expect when using Java’s BigDecimal class. From instantiation to applying different arithmetic operations, it is important to understand how they affect the resulting instances.
The following …
Reading a file name parameter from the command line is a common task. In this post I read a file name and validate it exists. For paths and file names that include spaces, you have to pass them between quotes, otherwise they will be interpreted by …
Here is an easy solution to passing parameters to a C++ application from the command line that does not require any external libraries.
Since parameters are read inside a loop, the order in which they are passed is not important.
#include …Netbeans is one of my beloved day to day applications. Yesterday, when I installed Ubuntu 15.10 (Wily Werewolf) on my computer, Netbeans started to hang on the startup screen, specifically at the Loading Modules phase. It took me hours looking for …
Hello,
This time I write to ask you for your support. We’re developing a website for small business owners in the City of Queretaro, Mexico.
The website will allow the proprietors have presence on the Internet. Many of these people do not have the …
If you are new on the Linux platform, I am sure you feel overwhelmed with all the different versions available. Choosing one is not an easy task, and each version has its own pros and cons.
Let me tell you why I like CentOS:
Relaxing stroll in the desert.
Part of my work as a Web/UNIX developer includes maintenance and development of tools using Oracle’s Pro*C.
In text interfaces, VIM is a pretty decent tool for creating source code and their companion make files. If you created the right make file, …
Important: This is a work in progress document.
The Model-View-Controller is a software pattern frequently used for web development. As its name states, it is composed by three components: