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Programming Leftovers

Submitted by Roy Schestowitz on Thursday 10th of February 2022 01:09:59 AM Filed under
Development
  • Java break and continue Statements

    The continue statement is used in the body of a while, do and for loop. The break statement is used in these loops, as well as in the switch statement. Iteration can be considered the execution of a loop’s body, over and over. The break statement stops the iteration. The continue statement skips one execution (rest of the statements below) of the body. This article explains the employment of the continue and break statements in Java. The while-loop compound statement will be used. For the break statement, the switch compound statement will also be used.

  • Dare to ask for more #rust2024

    Last year, we shipped Rust 2021 and I have found the changes to be a real improvement in usability. Even though the actual changes themselves were quite modest, the combination of precise capture closure and simpler formatting strings (println!("{x:?}") instead of println!("{:?}", x)) is making a real difference in my “day to day” life.1 Just like NLL and the new module system from Rust 2018, I’ve quickly adapted to these new conventions. When I go back to older code, with its clunky borrow checker workarounds and format strings, I die a little inside.2

    As we enter 2022, I am finding my thoughts turning more and more to the next Rust edition. What do I want from Rust, and the Rust community, over the next few years? To me, the theme that keeps coming to mind is dare to ask for more. Rust has gotten quite a bit nicer to use over the last few years, but I am not satisfied. I believe that there is room for Rust to be 22x more productive3 and easy to use than it is today, and I think we can do it without meaningfully sacrificing reliability, performance, or versatility.

  • how to use vim’s build in history (re run re play commands) by line number
  • Using the Linux fold command to make text more readable | Network World

    The Linux fold takes lines of text and breaks them into chunks based on the arguments that you provide. With no arguments, fold will break lines at 80 characters.

    The first example below uses a single-line text file that includes indications of character positions. First, we count the number of characters and lines in the file using the wc -l and wc -l command...

  • gfldex: Fuzzy commands

    Reading can make one learned. Today I had a peak into lizmat´s new module shorten-sub-commands and learned about Parameter.constraint_list. We need this method to introspect a routines literal parameters.

  • QtQuick3D Realtime Reflections

    Reflections enhance the realism of a rendered 3D scene and without it we can not have objects like mirrors or puddles of water that reflect the surrounding environment. Raster rendering pipelines like QtQuick3D can approximately calculate reflections using different methods to get good results, as opposed to Ray Tracing where reflections can be calculated accurately by following the light rays and checking where they bounce from. In this blog post, we are going to discuss two different techniques to do reflections in QtQuick3D.

  • Qt for MCUs 2.0.1 Released

    Qt for MCUs 2.0.1 has been released and is available for download. This is the first patch release made on top of the new Qt for MCUs 2.0 series. As a patch release, Qt for MCUs 2.0.1 provides bug fixes and other improvements, and maintains source compatibility with Qt for MCUs 2.0.0. It does not add any new functionality.

  • Qt for Android Automotive 6.2.3 released

    We are happy to announce the release of Qt for Android Automotive 6.2.3!

    This release comes with several fixes that improve the stability and developer experience of QAA. Big thanks to our technology preview users for reporting the issues!

  • Raspberry Pi: This new feature could help you get started more easily

    The makers of Raspberry Pi computers have released a new boot loader that lets users install an operating system like the official OS directly on the compute board rather than via a separate computer.

    Until now, Raspberry Pi owners needed the imager on a macOS, Windows or Ubuntu desktop to install the OS on a Pi device. It could also be done via another Pi device by connecting SD card readers on each of them. The new Raspberry Pi bootloader delivers network installation, cutting out the need for a second computer to install the OS.

  • Getting Started with C++ and InfluxDB [Ed: "InfluxData sponsored this post." The so-called 'media' or so-called 'news' sites on the Web have become nothing short of webspam]
»

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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