After Sun’s initial source code release, the Harmony project continued, working to provide an implementation under a lax license, in contrast to the protective license chosen for OpenJDK. Android incorporated parts of the Harmony project, supplemented with Google’s own Dalvik virtual machine and ART. Apache Harmony has since been retired, and Google has switched its Harmony components with equivalent ones from OpenJDK. The officially supported Java platform, first developed at Sun and now stewarded by Oracle, is Java SE.
Version strings have the form 1.x, or 1.x.0, where x is the product version number. Each Oracle product has a version number to indicate which version of the Java SE platform it implements. Version numbers are commonly used for marketing and documentation purposes. Prior to the release of OpenJDK, while Sun’s implementation was java se 7 tutorials still proprietary, the GNU Classpath project was created to provide a free and open-source implementation of the Java platform. In addition to the language changes, other changes have been made to the Java Class Library over the years, which has grown from a few hundred classes in JDK 1.0 to over three thousand in J2SE 5.
In most cases, the bug ID number for each bug fixed is a link to the detailed bug report on the Bug Database (Bug Parade) web site. Bug Database enables you to file your own bug reports, add comments to existing bug reports, and vote for the bugs you consider most important. Java 20 was released on 21 March 2023. All JEPs were either incubators or previews. Such patterns can include nested patterns, where the components of records are themselves records, allowing patterns to match more object graphs.
- The installer notifies you if Java content is disabled in web browsers, and provides instructions for enabling it.
- The officially supported Java platform, first developed at Sun and now stewarded by Oracle, is Java SE.
- 64-bit Windows operating systems (which may be Windows 7, Windows 8 or Vista) come with a 32-bit Internet Explorer (IE) browser as the standard (default) for viewing web pages.
- You will not be able to access
the source code if you are downloading from a country that is not
on this list.
- The JDK is a development environment for building applications using the Java programming language.
- If you have a previous version of Java Web Start, do not uninstall it.
Depending on your browser, click Save or Save File to save the JRE installer without installing it. Verify that you have downloaded the entire file by comparing the size of the file you downloaded with the expected size shown on the download page. Alternatively, (depending on your browser) click Run or Open to run the JRE installer from your browser.
Java SE Development Kit 8u391
That is, no further patch updates (no bug fixes, security fixes, or feature implementations) will be provided, and only limited support will be available after the end of the Extended Support period. These downloads can be used for development, personal use, or to run Oracle licensed products. Use for other
purposes, including production or commercial use, requires a Java SE Universal Subscription or another Oracle license. GraalVM for JDK 21 will receive updates under the GFTC, until September 2026, a year after the release of the next LTS.
JRE 7 provides the libraries, the Java Virtual Machine (JVM), and other components to run applets and applications written in the Java programming language. Note that the JRE includes components not required by the Java SE specification, including both standard and non-standard Java components. These binaries are provided primarily for use by implementors of
the Java SE 7 Platform Specification and are recommended for
reference purposes only.
Java SE 5
The Shenandoah and Z garbage collectors (latter sometimes abbreviated ZGC) are now ready for use in production (i.e. no longer marked experimental). Support for Oracle’s Solaris operating system (and SPARC CPUs) is dropped (while still available in e.g. Java 11). For production use Oracle recommends downloading the latest JDK and JRE versions and allowing auto-update. OCA Java SE 7 Programmer I Certification Guide is a comprehensive guide to the 1Z0-803 exam. You’ll explore important Java topics as you systematically learn what is required. Each chapter starts with a list of exam objectives, followed by sample questions and exercises designed to reinforce key concepts.