> For the complete documentation index, see [llms.txt](https://www.pranaypourkar.co.in/the-programmers-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.pranaypourkar.co.in/the-programmers-guide/java/installation-and-setup/java-platform-editions.md). # Java Platform Editions ## About Java is not a single monolithic platform — it consists of multiple editions, each tailored for different use cases. ## Java Platform Edition Timeline
YearEvent
1996Java SE 1.0 released
1999Java EE (J2EE) introduced
2000Java ME introduced for embedded/mobile
2004Java EE 5 brings annotations, EJB 3.0
2008JavaFX announced by Sun
2011Oracle acquires Sun; continues Java stewardship
2017Java EE 8 released (last under Oracle)
2018Java EE donated to Eclipse Foundation
2019Jakarta EE 8 (javax namespace, Eclipse maintained)
2020Jakarta EE 9 (migration to jakarta.*)
2022Jakarta EE 10 with new features
2023Jakarta EE 11 development with Java 17 base
## 1. Java SE (Standard Edition) ### Overview * **Purpose**: Provides the core functionality and foundation for all other Java editions. * **Components**: * JVM (Java Virtual Machine) * JDK (Java Development Kit) * Core Libraries (`java.lang`, `java.util`, `java.io`, `java.net`, etc.) * Development tools (`javac`, `java`, `javadoc`, `jdb`, etc.) ### Use Cases * General-purpose applications * Desktop applications * Server-side applications (when not using full EE stack) * Library development ### Key APIs and Features * Collections Framework * Concurrency Utilities * Streams API * Lambda Expressions * Generics * I/O and NIO * Exception Handling * Memory Management (Garbage Collector) ### Versioning and Updates * Released every 6 months (March and September) * Long-Term Support (LTS) versions: Java 8, 11, 17, 21 ### Licensing * Oracle JDK: Commercial and free usage restrictions * OpenJDK: Open-source alternative with the same features ## 2. Java EE (Enterprise Edition) ### Overview * **Purpose**: For building large-scale, distributed, multi-tiered enterprise applications. * **Builds On**: Java SE ### Key Components (javax.\* namespace) * Servlet, JSP, JSF (Web Layer) * EJB (Business Layer) * JPA (Persistence) * JAX-RS, JAX-WS (Web Services) * JMS (Messaging) * CDI (Dependency Injection) * Bean Validation (javax.validation) * Security, Transactions, Interceptors ### Application Servers * GlassFish * WebLogic * WebSphere * JBoss / WildFly ### Lifecycle * Java EE 5 (2006): Major revamp with annotations, EJB 3.0 * Java EE 6 (2009): CDI, Servlet 3.0, REST API support * Java EE 7 (2013): WebSocket, JSON-P, Batch API * Java EE 8 (2017): Bean Validation 2.0, JSON-B #### Final Release: Java EE 8 (2017) ## 3. Jakarta EE (Successor of Java EE) ### Overview * **Governance**: Managed by the Eclipse Foundation * **Purpose**: Continue evolving enterprise Java under open governance * **Key Change**: Namespace transition from `javax.*` to `jakarta.*` ### Versions and Features * **Jakarta EE 8 (2019)**: * Identical to Java EE 8 but under Eclipse governance * **Jakarta EE 9 (2020)**: * Complete namespace change to `jakarta.*` * No new features * **Jakarta EE 10 (2022)**: * New features in Servlet, CDI, REST, Faces * Java SE 11+ required * **Jakarta EE 11 (2024)**: * Introduced modularity and better container integration ### Compatibility * Requires Java SE 11+ (depending on version) * Works with modern containers and cloud-native platforms ### Modern Application Servers * Payara * WildFly * Open Liberty * TomEE ## 4. Java ME (Micro Edition) ### Overview * **Purpose**: Platform for embedded systems and mobile devices with limited resources * **Builds On**: Java SE (subset) ### Configurations and Profiles * CLDC (Connected Limited Device Configuration) * CDC (Connected Device Configuration) * MIDP (Mobile Information Device Profile) ### APIs * javax.microedition.\* * Lightweight UI Toolkit (LWUIT) ### Use Cases * Set-top boxes * Smart cards * Older mobile devices (pre-smartphone era) ### Decline * Replaced by Android and other IoT technologies ## 5. JavaFX ### Overview * **Purpose**: Rich client application development * **Replacement For**: AWT, Swing ### Features * Scene Graph-based UI framework * FXML (XML-based UI markup) * CSS Styling * Media & WebView * 2D/3D Graphics ### Status * Bundled until Java 11, now maintained separately as OpenJFX ### Usage * Standalone desktop apps * UI for embedded devices --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://www.pranaypourkar.co.in/the-programmers-guide/java/installation-and-setup/java-platform-editions.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.