Java 21 LTS is the current Long-Term Support release of Java, featuring virtual threads (Project Loom), pattern matching, and record patterns. This guide installs OpenJDK 21 on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Install OpenJDK 21 OpenJDK 21 […]
Java 24 is the latest release of the OpenJDK, featuring new Project Panama and Loom capabilities, improved garbage collectors, and preview features. Ubuntu 26.04 LTS ships with OpenJDK in its repositories. This guide installs Java 24 (OpenJDK) and configures it on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS […]
SonarQube is an open-source platform for continuous inspection of code quality. It detects bugs, security vulnerabilities, and code smells across 30+ programming languages. This guide installs SonarQube Community Edition on Ubuntu 26.04 LTS with PostgreSQL. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with at least 2 GB RAM and 2 CPUs […]
In this tutorial, we'll be discussing and implementing the Android MVVM Architectural Pattern in our Android Application. We've previously discussed the [Android MVP Pattern](/community/tutorials/android-mvp). Why do we need these patterns? Adding everything in a Single Activity or Fragment would lead to problems in testing and refactoring the code. Hence, the use of separation of code […]
El autor seleccionó el Open Internet/Free Speech Fund para que recibiese una donación de $100 como parte del programa Write for DOnations. Se necesitan Java y JVM (la máquina…
Deadlock in java is a programming situation where two or more threads are blocked forever. Java deadlock situation arises with at least two threads and two or more resources. Here I have written a simple program that will cause java deadlock scenario and then we will see how to analyze it. Deadlock in Java ![deadlock […]
In last few posts, we learned about [Java JAXB](/community/tutorials/jaxb-example-tutorial "JAXB Example Tutorial") and how to generate [java class from XSD](/community/tutorials/jaxb2-maven-plugin-xjc-example-generate-java-classes-xsd "How to Generate Java Classes from XSD using XJC Maven Plugin"). Today we will learn how to generate XSD from java classes. Generate XSD from Java Class ![generate xsd from java, xsd generator, java class […]
Автор выбрал Tech Education Fund для получения пожертвования в рамках программы Write for DOnations. Minecraft — это популярная видеоигра в жанре Sandbox (песочница)….
Apache Tomcat is a web server and servlet container that is used to serve Java applications. Tomcat is an open source implementation of the Java Servlet and JavaServer Pages technologies, released by the Apache Software Foundation. This tutorial covers the basic installation…
Автор выбрал фонд Open Internet/Free Speech Fund для получения пожертвования $100 в рамках программы Write for DOnations. Java и JVM (виртуальная машина Java) требуются для многих видов…
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