Where is Java Installed on Mac OS X

Question

I just downloaded Java 7u17 on Mac OS 10 7 5 from here and then successfully installed it  In order to do some JNI programming  I need to know where Java installed on my Mac    I thought that inside the  Library Java JavaVirtualMachines  folder  there would be a folder called 1 7 0 jdk or something  but then I found that the folder is empty  This was confirmed by running ls  Library Java JavaVirtualMachines  in the Terminal  I ve tried searching for it to find out if it was installed somewhere else  but that doesn t seem to be turning anything up   Could someone please tell me where Java is installed on my Mac

User · Answer

I tried serkan s solution  it found java 7 s location on OS X Mavericks  it is resided in   Library Java JavaVirtualMachines jdk1 7 0 51 jdk   but to make it the default JDK I had to set JAVA HOME system variable in  bash profile in home directory to   Library Java JavaVirtualMachines jdk1 7 0 51 jdk Contents Home   so its up and running now thanks to serkan s idea

User · Answer

Use  usr libexec java home -v 1 8 command on a terminal shell to figure out where is your Java 1 8 home directory  If you just want to find out the home directory of your most recent version of Java  omit the version  e g   usr libexec java home

User · Answer

For      OS X   10 11 6 Java   8    I confirm the answer of  Morrie        export JAVA HOME  Library Internet  Plug-Ins JavaAppletPlugin plugin Contents Home    But if you are running containers your life will be easier

User · Answer

if you are using sdkman you can check it with sdk home java  lt installed java version gt     sdk home java 8 0 252 j9-adpt  Users admin  sdkman candidates java 8 0 252 j9-adpt  you can get your installed java version with   sdk list java

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just write  Library Java JavaVirtualMachines  in Go to Folder --  Go in Finder

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Turns out that I actually had the Java 7 JRE installed  not the JDK  The correct download link is here  After installing it  jdk1 7 0jdk appears in the JavaVirtualMachines directory

User · Answer

If you type  java -verbose    This also gives the location from which the jars are loaded and hence also the java path

User · Answer

Try This  It s easy way to find java installed path in Mac OS X   GoTO   1    Library i e Macintosh HD Library    2  Click on Library in that we find Java folder     3  So final path is    Library Java JavaVirtualMachines jdk1 8 0 144 jdk Contents Home   Hope so this is help for someone

User · Answer

You could use echo    usr libexec java home  command in your terminal to know the path where Java being installed

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Edited  Alias to current java version is  Library Java Home  For more information  a link

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If you install just the JRE  it seems to be put at    Library Internet Plug-Ins JavaAppletPlugin plugin Contents Home

User · Answer

Use unix find function to find javas installed     sudo find   -name java

User · Answer

Java package structure of Mac OS is a bit different from Windows  Don t be upset for this as a developer just needs to set PATH and JAVA HOME   So in  bash profile set JAVA HOME and PATH as below  This example is for Java 6   export JAVA HOME  System Library Java JavaVirtualMachines 1 6 0 jdk Contents Home export PATH  System Library Java JavaVirtualMachines 1 6 0 jdk Contents Home bin  PATH

User · Answer

I have just installed the JDK for version 21 of Java SE 7 and found that it is installed in a different directory from Apple s Java 6  It is in  Library Java    rather then in  System Library Java     Running  usr libexec java home -v 1 7 versus -v 1 6 will confirm this

User · Answer

type which java in terminal to show where it is installed

User · Answer

The System Preferences then Java control panel then Java then View will show the exact location of the currently installed default JRE

[java] Where is Java Installed on Mac OS X?

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