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JDK 8 is a superset of JRE 8, and contains everything that is in JRE 8, plus tools such as the compilers and debuggers necessary for developing applets and applications. JRE 8 provides the libraries, the Java Virtual Machine (JVM), and other components to run applets and applications written in the Java programming language.
Apr 10, 2023 · So yes, an app built for Java 8 can run on Java versions 8, 9, … 17, 18, 19, and 20. But not the other way round. An app built for Java 18 can only be run on Java versions 18, 19, and 20. You can get a JDK (an implementation of the Java specifications) from any of several vendors.
Jan 5, 2024 · SDK or Software Development Kit is a complete collection of software tools and programs usually offered by hardware and software suppliers. SDKs are used by developers to create applications that are appropriate to specific platforms, such as operating systems or frameworks.
Jan 4, 2024 · Access to Platform Features: SDKs offer developers access to platform-specific features and services, enabling them to leverage the full potential of the underlying technology. This is particularly evident in the case of Java SDKs, which allow seamless integration with the Java Virtual Machine (JVM) and the Java Runtime Environment (JRE).
Classes and interfaces that provide basic features and fundamental functionality for the Java platform. Provides the fundamental Object and Class classes, wrapper classes for primitive types, a basic math class, and more. See the Lang and Util documentation for more information.
Feb 1, 2020 · Some SDKs are required for developing a platform-specific app. For example, developing Android apps in Java requires the Java Development Kit, iOS apps the iOS SDK, and for Universal Windows Platform the .NET Framework SDK.
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For API documentation, refer to the The Java Platform, Standard Edition API Specification. This documentation provides brief descriptions of the API with an emphasis on specifications, not on code examples. See the Release Notes on the Java Platform web site for additional information pertaining to this release.