Java Development Kit for Mac (also known as JDK) is a highly professional cross-platform SDK platform created and regularly supported by Oracle Corporation.With a goal of providing specific implementation of Java SE, Java EE and Java ME platforms developers from all around the world use it. Because of its strong development support, this SDK package represents the most popular and widely used Java SDK platform for creation of both enterprise projects and open-source projects of all sizes. Popularity of Java Development Kits present not only because of the absolutely astonishing set of tools, services and features that this package offers, but also because in late 2006 Oracle released this SDK under the GNU General Public License, making it free for everyone. Java Development Kit for Mac (often described by Oracle as an “extended” package that expands upon the normal tools that could be find in Java SE Development Kit) hosts wide variety of tools for streamlined developing, debugging, testing, and monitoring of Java applications. The core of the package consists from more than 30 individual tools and service which can effortlessly control every aspect of Java application development, from the concept phase to the final deployment to the end-users. Contents of the JDK: Development Tools (In the bin/ subdirectory) Tools and utilities that will help you develop, execute, debug, and document programs written in the JavaTM programming language. Runtime Environment (In the jre/ subdirectory) An implementation of the Java Runtime Environment (JRE) for use by the JDK.

The JRE includes a Java Virtual Machine (JVM), class libraries, and other files that support the execution of programs written in the Java programming language. Additional Libraries (In the lib/ subdirectory) Additional class libraries and support files required by the development tools. Demo Applets and Applications (In the demo/ subdirectory) Examples, with source code, of programming for the Javaplatform.

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These include examples that use Swing and other Java Foundation Classes, and the Java Platform Debugger Architecture. Sample Code (In the sample subdirectory) Samples, with source code, of programming for certain Java API's. C header Files (In the include/ subdirectory) Header files that support native-code programming using the Java Native Interface, the JVM Tool Interface, and other functionality of the Javaplatform.

Source Code (In src.zip) Java programming language source files for all classes that make up the Java core API (that is, sources files for the java., javax. and some org. packages, but not for com.sun. packages).

This source code is provided for informational purposes only, to help developers learn and use the Java programming language. These files do not include platform-specific implementation code and cannot be used to rebuild the class libraries. To extract these file, use any common zip utility.

Or, you may use the Jar utility in the JDK's bin/ directory: jar xvf src.zip. Download Java Development Kit for Mac now! Also Available.

The Java SE 6 runtime that has shipped with past versions of OS X and which has been available on-demand for Lion users is the in OS X, but this does not mean Java for OS X is dead. Java's parent company Oracle has taken up the reins for Java development in OS X, and yesterday of the upcoming Java SE 7 runtime for OS X. This update is good news for Java developers, and for end users who run Java code on Mac systems, as it is the first step for OS X to maintain the most up-to-date version of Java in OS X. Download and run the Java installer package to install the Java 7 runtime. (click for larger view) Screenshot by Topher Kessler/CNET While this is good news for OS X, if you plan on trying the software out then there are some details about the Java 7 release that you should know.

First is the update is for OS X 10.7 Lion only, and will not install on other versions of OS X. While the install places a separate Java runtime and development kit on the system along with others you may have, as a result if you were to copy the installed JDK file to another version of OS X, you may run into problems. The system requirements for the Java runtime may change in the future to include Snow Leopard, but given that for now it is Lion-only suggests that support for prior versions of OS X will likely not come very soon, if ever. In addition to being Lion only, this Java release is meant to be a development environment for creating Java applications, rather than being an official public release of the software. Therefore, even though you can use it to run and test Java applications, the plug-ins and infrastructure required to launch Java applets from Web browsers are missing. Drag the Java 7 runtime to the top of the runtime list, or uncheck other runtimes listed. (click for larger view) Screenshot by Topher Kessler/CNET To install the Java 7 development kit for OS X, download the and run it.

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The installer will check that your system meets the system requirements (it is running OS X 10.7.0 or later), and then will place the Java 7 development kit into the /Library/Java/JavaVirtualMachines/ directory along-side any versions of Java SE 6 that you may have installed. The installer will then ensure the runtimes in this directory are properly accessible, and quit. After you have installed the Java runtime, you will then need to ensure it is enabled on your system. To do this, go to the /Applications/Utilities/ folder and open the Java Preferences utility. In the General section of this utility you should see the Java SE 7 runtime enabled, but likely listed below any other Java runtimes. You can then enable the runtime's use either by dragging it to the top of the list and keeping all runtimes enabled, or by unchecking all but the Java SE 7 runtime.

Install Java Development Kit Jdk For Mac Os X

If you need to use Web applets or Web Start applications, then reorganizing the list is the best option as it will allow the plug-in process to access compatible runtimes. To check that the Java version is the latest build you just installed, open the Terminal application (in the /Applications/Utilities/ folder) and run the following command: java -version To uninstall the Java 7 runtime, simply locate and remove this file from your computer. (click for larger view) Screenshot by Topher Kessler/CNET When this command is run, you should see output that states the installed version of the Java runtime is '1.7.004' along with some additional information about it. At this point, you have the latest Java runtime installed on your system and can use it for running Java applications or any development purposes you need, but do keep in mind that these settings are on a per-user basis so you will have to ensure that Java 7 is set to be enabled and be the preferred runtime for each user on the system who needs it. If you decide you no longer wish to have the Java 7 runtime installed on your system, then you can either disable it or uninstall it completely from your system, both of which are relatively easy to do.