Programming: Java EE, Rust, JavaScript, RcppGetconf and More
-
Free Online Java EE Development Course From Red Hat Available Now
The Red Hat Training team is pleased to announce the release of Fundamentals of Java EE Development. This free training is hosted by our partner edX. edX is an open online course provider that now hosts three Red Hat courses, including Fundamentals of Red Hat Enterprise Linux and Fundamentals of Containers, Kubernetes, and Red Hat OpenShift.
Enterprise Java (Java EE is now known as Jakarta EE) is one of the most in-demand and marketable programming platforms. With Fundamentals of Java EE Development, students learn the foundational skills needed to develop modern applications. Serving as an introduction to enterprise Java development using Red Hat Developer Studio and Red Hat JBoss Enterprise Application Platform, this course builds on students’ Java SE skills to teach the basic concepts behind more advanced topics such as microservices and cloud-native applications.
-
New Rust Course - Building Reuseable Code with Rust
This course is about the Rust programming language, but it’s not those general introductory course on basic Rust syntax. This course focus on the code reuse aspect of the Rust language. So we won’t be touch every language feature, but we’ll help you understand how a selected set of features will help you achieve code reuse.
[...]
snippet is not enough. What comes next naturally is to define a clear interface, or internal API between the modules (in a general sense, not the Rust mod). This is when traits comes in handy. Traits help you define and enforce interfaces. We’ll also discuss the performance impact on static dispatch vs. dynamic dispatch by using generics and trait object.
Finally we talk about more advanced (i.e. you shouldn’t use it unless necessary) tool like macros, which will help do crazier things by tapping directly into the compiler. You can write function-like macros that can help you reuse code that needs lower level access. You can also create custom derive with macros.
-
What is the MEAN stack? JavaScript web applications
Most anyone who has developed web applications knows the acronym LAMP, which is used to describe web stacks made with Linux, Apache (web server), MySQL (database server), and PHP, Perl, or Python (programming language).
Another web-stack acronym has come to prominence in the last few years: MEAN—signifying a stack that uses MongoDB (database server), Express (server-side JavaScript framework), Angular (client-side JavaScript framework), and Node.js (JavaScript runtime).
-
RcppGetconf 0.0.3
Changes are minor. We avoid an error on a long-dead operating system cherished in one particular corner of the CRAN world. In doing so some files were updated so that dynamically loaded routines are now registered too.
-
The performance impact of zeroing raw memory
When you create a new variable (in C, C++ and other languages) or allocate a block of memory the value is undefined. That is, whatever bit pattern happened to be in the raw memory location at the time. This is faster than initialising all memory (which languages such as Java do) but it is also unsafe and can lead to bugs, such as use-after-free issues.
There have been several attempts to change this behaviour and require that compilers would initialize all memory to a known value, usually zero. This is always rejected with a statement like "that would cause a performance degradation fo unknown size" and the issue is dropped. This is not very scientific so let's see if we could get at least some sort of a measurement for this.
- Login or register to post comments
- Printer-friendly version
- 2496 reads
- PDF version
More in Tux Machines
- Highlights
- Front Page
- Latest Headlines
- Archive
- Recent comments
- All-Time Popular Stories
- Hot Topics
- New Members
digiKam 7.7.0 is releasedAfter three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. |
Dilution and Misuse of the "Linux" Brand
|
Samsung, Red Hat to Work on Linux Drivers for Future TechThe metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. |
today's howtos
|
Recent comments
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago