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.

Oracle JDK requires a commercial license from Oracle and businesses (since 2019) need to purchase a commercial license in order to receive software updates. OpenJDK is completely open source with a GNU General Public License. The main difference between OpenJdk and OracleJDK is licensing.

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.

Popular OpenJDK builds includes Azul Zulu, Red Hat OpenJDK (IcedTea), Amazon Corretto, Eclipse Adoptium's Temurin, SapMachine, Microsoft OpenJDK, and more. It does not include web-browser plugin and Web Start. OpenJDK includes the virtual machine (HotSpot), the Java Class Library, and the Java Compiler.

OpenJDK: Currently, the 'OpenJDK' ) developed by Oracle, Java community, Red Hat, Azul Systems, IBM, Microsoft, Amazon, Apple, SAP, provides a free and open-source Java Platform Standard Edition (or Java SE or JDK) official reference implementation.If the major version of the available JDK is unique you can just use the major version, like: export JAVA_HOME=`/usr/libexec/java_home -v 1.The Java Development Kit (JDK), officially named 'Java Platform Standard Edition' or 'Java SE', is needed for writing and running Java programs. For example, I will choose the 1.8.0_121 version to be my default JDK. Matching Java Virtual Machines (3):ĩ, x86_64: 'Java SE 9' /Library/Java/JavaVirtualMachines/jdk-9.jdk/Contents/Homeġ.8.0_121, x86_64: 'Java SE 8' /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Homeġ.7.0_80, x86_64: 'Java SE 7' /Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Homeįrom the list above pick which version you want to be the default JDK. On my machine I have the following version of Java. The command will print out something like the following depending on the available JDK in your computer. First you need to run /usr/libexec/java_home -V command to get the list of installed JDK.

In this post you will learn how to set the default JAVA_HOME in Mac OS X when you have more than one JDK installed in your computer.

Java 11 mac os