Java Tutorial # 1: JDK Java Installation

INFO: The JDK8 version of this tutorial is available HERE

Master the installation of the Java 6 Development Kit (JDK 6). Download the JDK from the Oracle site and install it step by step. Understand the difference between Java Runtine Environment (JRE) and Java Development Kit (JDK). Test your Java 6 installation and analyze the JRE / JDK tree. Finally, discover the OpenJDK alternative.The successful installation of the JDK is essential to realize your first JAVA program.






What is Java technology and why do I need it?
Java is a programming language and an IT platform that was created by Sun Microsystems in 1995. Many applications and websites do not work if Java is not installed and their numbers are growing every day. Java is fast, secure and reliable. From laptops to data centers, game consoles to scientific supercomputers, cell phones to the Internet, Java technology is present on all fronts!
Is Java available for free download?

Yes, you can download Java for free. For the latest version, visit java.com.

If you are building a nested or consumer appliance and want to integrate Java, contact Oracle for more information on how to include Java in your appliance.

Why do I need to upgrade to the latest version of Java?

The latest version of Java includes significant performance, stability, and security improvements for Java applications running on your computer. Installing this free update ensures that Java applications are always run securely and efficiently.

ADDITIONAL TECHNICAL INFORMATION
What will I have access to by downloading the Java software?
When you download the Java software, you have access to the Java Runtime Environment (JRE). This environment consists of the Java Virtual Machine (JVM), standard Java platform classes, and supporting Java libraries. The JRE environment is the runtime portion of the Java software and can run the Java software in your web browser.

What is the Java plug-in?
The Java plug-in is a component of the JRE environment. The latter allows applets written in Java programming language to be executed in different browsers. The Java plug-in is not a stand-alone program and can not be installed separately.

I met the terms "Java Virtual Machine" and "JVM". Is this Java software?

The Java Virtual Machine is only part of the Java software, related to the interaction with the Web. It is included in the Java software download and allows the execution of Java applications.

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