Set JAVA_HOME as the Variable name and the path to the JDK installation as the Variable value and click OK; Click OK and click Apply to apply the changes; Open Command Prompt and check the value of the JAVA_HOME variable: echo%JAVA_HOME% The result should be the path to the JDK installation: C: Program Files Java jdk1.8.0_111 3. Mac OS X 3.1.

I'm sort of a beginner with eclipse but I want to update the libraries or build path or whatever to java 1.7 from java 1.6 and I can't figure it out. I'm a computer science student at the university of washington and various TA's and students have tried to figure out this problem but it's stumped them all. I've installed java 1.7 from Oracle a few times already and the java section of system preferences says I have 1.7 but java -version in terminal says: java version '1.6.0_41' Java(TM) SE Runtime Environment (build 1.6.0_41-b02-4) Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01-445, mixed mode) What's going on here? My mac is totally up to date on everything else. You need to add jdk 1.7 in the build path of your project in eclipse.

Follow below steps. • Right click on project • Select buil path=> configure build path • Select Java Build Path => Library • Click Add Library=> JRE System Library =>Click next. • Now select and add jdk1.7 installation location. • Now click on Java Compiler => select Java compiler to 1.7.

Note All version of eclipse does not include facet support for JDK 1.7 compiler. I will recommend you to download Eclipse Juno.

Eclipse juno has inbuilt facet support for jdk 1.7 compiler. It seems that you have both java versions installed in parallel First you can try this: • Goto Applications -> Utilities -> Java Preferences • To make JRE 7 the default version of Java, re-order the list by dragging Java SE 7 to the top of the list. If this doesn't help, your PATH variable is pointing to the wrong installation. Open you.profile file in your home directory (e.g., with open ~/.profile from our treminal) and check for a line like export PATH=/ and let it point to the directory you installed your oracle java 7 into.

Unfortunately, Java 7 is only available on OS X for Intel-based Macs running Mac OS X 10.7.3 (Lion) or later. The states: Mac OS X System Requirements Intel-based Mac running Mac OS X 10.7.3 (Lion) or later.* Administrator privileges for installation 64-bit browser Note that installing Java on a Mac is performed on a system wide basis, for all users, and administrator privileges are required. You cannot install Java on a single-user basis. A 64-bit browser (Safari or Firefox, for example) is required to run Java 7 on Mac OS X. 32-bit browsers such as Chrome do not support Java 7 on the Mac platform. *Users with Mac OS X versions 10.6 and below should go to Software Update under the Apple menu to look for updates. There are some very old releases available for PowerPC at, but these may not be suitable.