Java SE Development Kit

Java SE Development Kit 7.0

Free
Java Development Kit 7 (JDK 7) is the next major release of the Java SE platform
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Java Development Kit 7 (JDK 7) is the next major release of the Java SE platform. Through the OpenJDK project, JDK 7 has been a highly collaborative effort between Sun and volunteers from the Java developer community.

Key Features:

JDK 7 introduces several key features to improve performance, usability, and security of the Java platform. A detailed list of these features appears on the OpenJDK site.

Based on the feedback from the developer community and Sun's customers, the JDK 7 features primarily focus on the following areas:

-Modularization: A large-scale effort to refactor, or break up, the Java SE platform into smaller, separate, interdependent modules. Individual modules can then be downloaded as required by the Java virtual machine and/or Java applications. This effectively shrinks the size of the runtime on the user's machine.

One benefit of modularization is that the platform is a smaller download, potentially improving start-up performance. Having a smaller memory footprint also enables significant performance improvements, especially for desktop applications. A smaller platform also means it can now fit on devices with less memory.

You can find more information about modularization on the OpenJDK site, on Mark Reinhold's blog , or on the Project Jigsaw site.

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