How to prevent JDT LS (via m2e) from adding generated-sources APT folders and org.eclipse.jdt.apt prefs to an Eclipse+Maven project in VS Code. If you open a Maven Java project in Visual Studio Code that also contains Eclipse project metadata (.project, .classpath, .settings/…), you might notice that VS Code’s Java tooling (JDT Language Server) “helpfully” edits […]
This is the style I use to highlight my Java code in LaTeX documents with the Listings package, with Eclipse colors:
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% Colors for code highlighting according to the Eclipse default theme \definecolor{keywordColor}{rgb}{0.5, 0, 0.33} \definecolor{commentColor}{rgb}{0.25, 0.5, 0.35} \definecolor{stringColor}{rgb}{0.16, 0, 1} \definecolor{numberColor}{rgb}{0, 0, 0} % Color style \lstdefinestyle{mystyle}{ flexiblecolumns=true, keepspaces=true, tabsize=4, showstringspaces=false, basewidth={0em,0em},, numbers=left, basicstyle=\scriptsize, numberstyle=\color{numberColor}, commentstyle=\color{commentColor}\itshape, stringstyle=\color{stringColor}\ttfamily, keywordstyle=\color{keywordColor}\bfseries, } |
And this is an example of a document, where I show the same listing both with black and white colors an Eclipse colors:
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\documentclass{article} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} % not needed on XeLaTeX/LuaLaTeX \usepackage{xcolor} \usepackage{listings} % Colors for code highlighting according to the Eclipse default theme \definecolor{keywordColor}{rgb}{0.5, 0, 0.33} \definecolor{commentColor}{rgb}{0.25, 0.5, 0.35} \definecolor{stringColor}{rgb}{0.16, 0, 1} \definecolor{numberColor}{rgb}{0, 0, 0} % Color style \lstdefinestyle{mystyle}{ flexiblecolumns=true, keepspaces=true, tabsize=4, showstringspaces=false, basewidth={0em,0em},, numbers=left, basicstyle=\scriptsize, numberstyle=\color{numberColor}, commentstyle=\color{commentColor}\itshape, stringstyle=\color{stringColor}\ttfamily, keywordstyle=\color{keywordColor}\bfseries, } % Black and white style \lstdefinestyle{mystylebw}{ flexiblecolumns=true, keepspaces=true, tabsize=4, showstringspaces=false, basewidth={0em,0em},, numbers=left, basicstyle=\scriptsize, commentstyle=\itshape, stringstyle=\ttfamily, } \begin{document} \section*{Demo} With the default black and white style: \begin{lstlisting}[language=Java,style=mystylebw] // A simple Java program class Demo { public static void main(String[] args) { System.out.println("Hello, world!"); } } \end{lstlisting} \noindent With the color style: \begin{lstlisting}[language=Java,style=mystyle] // A simple Java program class Demo { public static void main(String[] args) { System.out.println("Hello, world!"); } } \end{lstlisting} \end{document} |
Here’s the result:
If you use the LaTeX listings package to typeset Java, you’ve probably noticed that modern Java has moved faster than the package itself. Records, var, and text blocks may not highlight correctly out of the box. The good news: the listings package is extensible so that you can teach it “modern Java” with a tiny […]
I experimented with Copilot “Agent mode”: I told it to create a Maven plugin. (Let me stress that I already have some experience implementing and testing Maven plugins.) I’ll report my experience, which has been positive in some respects but disappointing in others. I use “Claude 3.5 Sonnet” model because that’s the one used in […]
Microsoft announced the public review of Copilot for Eclipse. I immediately tried that in one of my Java projects. Use the “Market Place” to install Copilot in Eclipse: Once you click install, you must “trust” the contents to be installed: Once installed and restarted Eclipse, you must authenticate with your GitHub Copilot account by clicking […]
This is the fourth part of a few tutorials on Java development with Neovim using the LazyVim setup. This post assumes you have already read and applied all the steps of the first, second, and third parts. You need Java installed (possibly 21), while Maven is optional. I will use this Maven example during the […]
This is the 5th post about using Java in Gitpod. It assumes you have already read the first, second, third, and fourth posts. We can benefit from automatic formatting. First, select (from F1) the command “View: Toggle Render Whitespaces”. We can see that the Maven archetype generated Java source code with spaces for indentation: I prefer […]
This is the third part of a few tutorials on Java development with Neovim using the LazyVim setup. This post assumes you already read and applied all the steps of the first part and the second part. You need Java installed (possibly 21), while Maven is optional. I will use this Maven example during the […]
This is the second part of a few tutorials on Java development with Neovim using the LazyVim setup. This post assumes you already read and applied all the steps of the first part. You need Java installed (possibly 21), while Maven is optional. I will use this Maven example during the tutorial: https://github.com/LorenzoBettini/maven-bank-example, part of […]
Updated 16 December 2024 (for Telescope) This is the first part of a few tutorials on Java development with Neovim using the LazyVim setup. I highly recommend LazyVim because it has many cool plugins configured with nice defaults. Moreover, as we see in this tutorial, it lets you quickly have the Java LSP up and […]
This is the 4th post about using Java in Gitpod. It assumes you have already read the first, second, and third posts. Let’s now use the POM editor to update the version of JUnit (the Maven archetype is based on an old version of JUnit). When we open the “pom.xml” in the editor, we get a […]
This is the 3rd post about using Java in Gitpod. It assumes you have already read the first and second posts. On the bottom, we can see that there are two warnings on our project; let’s click the icon and see them in the “Problems” tab: Since this is not a Java project managed by […]
This is probably the beginning of a series of articles about testing Maven plugins. I’ll start with the Maven Embedder, which allows you to run an embedded Maven from a Java program. Note that we’re not simply running a locally installed Maven binary from a Java program; we run Maven taken from a Java library. […]
In a previous post, I showed how to start with Java and Maven in Gitpod. This is the second post of this series, where I show a few interesting tools provided by the IDE. As I said in the previous post, this might be unrelated to Gitpod since we’re using the tools provided by Visual […]
I have already blogged about Gitpod, which allows you to spin up fresh development environments from your GitHub projects so that you can code with Visual Studio on the web (that’s just a very reductive definition, so you may want to look at its website for the complete set of features). I have already shown […]
In this blog post, I will describe a few scenarios where you want to update versions in a multi-module Maven project consistently. In these examples, you have both a parent POM, which is meant to contain common properties and configurations to be inherited throughout the other projects, and aggregator POMs, which are meant to be […]
I haven’t been blogging for some time now. I’m getting back to blogging by announcing my new book on TDD (Test-Driven Development), Build Automation and Continuous Integration. The title is indeed, “Test-Driven Development, Build Automation, Continuous Integration (with Java, Eclipse and friends)” and can be bought from https://leanpub.com/tdd-buildautomation-ci. The main goal of the book is […]
Especially with lambdas, you may end up with a chain of method calls that you’d like to have automatically formatted with each invocation on each line (maybe except for the very first invocation). You can configure the Eclipse Java formatter with that respect; you just need to reach the right option (the “Force split” is […]