J2SE 5.0 (JDK 5) (September 2004): Officially called 5.0 instead of 1.5 (by dropping the 1.).J2SE 1.4 (JDK 1.4) (February 2002): Introduced assert statement, non-blocking IO ( nio), logging API, image IO, Java webstart, regular expression (regex) support.Also introduced Collection Framework and JIT compiler. Included JFC (Java Foundation Classes - Swing, Accessibility API, Java 2D, Pluggable Look & Feel, and Drag & Drop). Also released J2EE (Java 2 Enterprise Edition) and J2ME (Java 2 Micro Edition). J2SE 1.2 (JDK 1.2) (December 1998): Re-branded as 'Java 2' and renamed JDK to J2SE (Java 2 Standard Edition).JDK 1.1 (February 1997): Introduced AWT event model, inner class, JavaBean, JDBC, and RMI.JDK 1.0 (January 1996): Originally called Oak (named after the oak tree outside James Gosling's office).JDK Alpha and Beta (1995): Sun Microsystem announced Java in September 23, 1995.OracleJDK: This article is based on the 'OracleJDK' ) (due to legacy), which is free for personal and development use but no longer free for commercial use.

OpenJDK: Currently, the 'OpenJDK' developed by Oracle and the Java community ) provides a free and open-source JDK official reference implementation.

Java HotSpot(TM) 64-Bit Server VM (build 23.The Java Development Kit (JDK), officially named 'Java Platform Standard Edition' or 'Java SE', is needed for writing and running Java programs. Java(TM) SE Runtime Environment (build 1.7.0_09-b05) Then, you should be good: java -version java version '1.7.0_09' So, the magic commands you need are: sudo rm sudo ln -s /Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/ CurrentJDK Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/Home

You're going to want to point that to the new JDK, which java_home tells us is located in: /usr/libexec/java_home It probably points to: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents You'll notice a symbolic link for CurrentJDK.

This is where the system jvm's are stored. So, I headed over to: /System/Library/Frameworks/amework/Versions After reading their installation instructions and running /usr/libexec/java_home (which I didn't even know about), it still wasn't defaulting to JDK 7.They have a nice dmg file, which makes it easy to install.

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