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JNI C++ wrapper for Android: classes and callbacks

https://sudonull.com/jni-c-wrapper-for-android-classes-and-callbacks

Setting up Java wrappers for C++ classes in Android via JNI. Implementing callbacks from native code with ThreadPool. Code, examples, best practices for middle/senior dev.

Android Development Roadmap Free from Scratch

https://sudonull.com/android-development-roadmap-free-from-scratch

Full free Android development learning plan: from CS to Dagger 2. Become a junior in 8–10 months without paid courses. Practice, stack, resources for middle/senior.

Java backend courses 2026: top-7 programs

https://sudonull.com/java-backend-courses-2026-top-7-programs

Choose a Java backend course for 2026: Netology, Skillbox, Hexlet. Spring Boot, microservices, internships, AI. Comparison, projects, reviews. Start learning!

CUBA Platform for Java: pros and cons

https://sudonull.com/cuba-platform-for-java-pros-and-cons

CUBA Platform Breakdown: how the framework speeds up hackathons but slows down production. Comparison with Spring, scaling issues, vendor lock-in. For middle/senior devs — read cases and conclusions.

Threads in Java: architecture and synchronization

https://sudonull.com/threads-in-java-architecture-and-synchronization

Breakdown of threads from processor to JVM: Race Condition, monitors, ReentrantLock, CompletableFuture. For middle/senior developers. Master without errors in production.

From the web

Java | Oracle

https://www.java.com/

Oracle Java is the #1 programming language and development platform. It reduces costs, shortens development timeframes, drives innovation, and improves application services.

Download Java

https://www.java.com/en/download/

Apr 21, 2026 · This download is for end users who need Java for running applications on desktops or laptops. Java 8 integrates with your operating system to run separately installed Java applications.

Java Downloads | Oracle

https://www.oracle.com/java/technologies/downloads/

Download the Java including the latest version 17 LTS on the Java SE Platform. These downloads can be used for any purpose, at no cost, under the Java SE binary code license.

Java (programming language) - Wikipedia

https://en.wikipedia.org/wiki/Java_(programming_language)

[22] Java was designed by James Gosling at Sun Microsystems. It was released in May 1995 as a core component of Sun's Java platform. The original and reference implementation Java compilers, virtual …

Java Software | Oracle

https://www.oracle.com/java/

Oct 6, 2009 · Join the global Java community and explore Oracle’s role in stewarding the Java platform and supporting open source development across the ecosystem. Access learning paths, tutorials, …

Java Tutorial - GeeksforGeeks

https://www.geeksforgeeks.org/java/java/

1 day ago · Java is a high-level, object-oriented programming language used to build web apps, mobile applications, and enterprise software systems. Java is a platform-independent language, which …

Java Tutorial - W3Schools

https://www.w3schools.com/java/

Learn Java Java is one of the world's most widely used programming languages. Java is free to use, and runs on all platforms.

Download JDK 8, 11, 17, 21, 25, 26 | Java Builds for Linux, Windows and ...

https://bell-sw.com/pages/downloads/

Download Liberica JDK, supported OpenJDK builds. Open source Java 8, 11 and more for Linux, Windows, macOS.

Introduction to Java - GeeksforGeeks

https://www.geeksforgeeks.org/java/introduction-to-java/

Jul 1, 2026 · Java is a widely used programming language for building web, desktop, mobile, and enterprise applications. It is known for its simple syntax, portability, and powerful features that make …

Introduction to Java - W3Schools

https://www.w3schools.com/java/java_intro.asp

By the end of this tutorial, you will know how to write basic Java programs and apply your skills to real-life examples. You don't need any prior programming experience - just curiosity and practice!