When I am working with multiple versions of Java in my windows machine - 1.6 & 1.7, and when I try to switch from 1.7 to 1.6, and modified the PATH environment variable, it's still showing the 1.7 version only. How can I fix it?
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1Have you also changed the JAVA_HOME variable?user562– user5622014-12-08 11:55:09 +00:00Commented Dec 8, 2014 at 11:55
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After changing the path, you need to re-launch the command prompt. See..stackoverflow.com/questions/24839819/…Deepak Sharma– Deepak Sharma2016-07-06 11:24:01 +00:00Commented Jul 6, 2016 at 11:24
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"it's still showing..." What is still showing? How do you modify the PATH? And then how to you check the version?Code-Apprentice– Code-Apprentice2024-01-23 01:43:37 +00:00Commented Jan 23, 2024 at 1:43
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8 Answers
Java installations on Windows machines also copy a java.exe file into the directory C:\Windows\System32 (as well as a javaw.exe and a javaws.exe).
As this directory is usually also part of the PATH environment variable and - also usually - is mentioned before any program directory, you will see the output of the java.exe file that is from the system directory.
The path usually looks like:
PATH = [...];C:\Windows\System32;[...];C:\Program Files\Java\jdk7\bin;[...]
So even if you switch it to
PATH = [...];C:\Windows\System32;[...];C:\Program Files\Java\jdk6\bin;[...]
you will get a "Version 7" output on the console. If you instead change your path variable to
PATH = C:\Program Files\Java\jdk6\bin;[...];C:\Windows\System32;[...]
then you will get the "Version 6" output.
3 Comments
iamgr007
for me it was "C:\Program Files\Common Files\Oracle\Java\javapath"
Seelenvirtuose
@iamgr007 Have a look at the date. It was back to 2014! The behavior of Java installations on Windows systems changed since then.
iamgr007
yeah I understand! just updating for the peeps looking into this now...
In my case the files are copied to the below folder C:\Program Files\Common Files\Oracle\Java\javapath C:\Program Files (x86)\Common Files\Oracle\Java\javapath and both the paths are appended in the system path.
removing the above paths from the system path and setting did the trick.
1 Comment
Pawara Siriwardhane
Welcome to StackOverflow. Please refer: how to answer. Always pay attention to the neatness of the answer.
This is because of registry in Windows cause the java executable uses the Windows Registry to locate the default version of Java to run. (registry > JAVA_HOME). If you want to switch between Java dont make installation but only unpacking zip and setting the JAVA_HOME.
Comments
In this case, changing the environment variable values only is not sufficient enough to work with. Look for java.exe & javaw.exe files in the Windows/System32 folder. Replace them with those files of the java version bin folder you are actually willing to switch and check the version now. Hope this helps you.
Comments
I can think of these places to run from :
- Eclipse :It is easy if using eclipse.(refer google :) )
if using command prompt(windows) i would suggest set path vairable for each command prompt i.e. do this :
e:\somepath> set path=.;c:\pathto\JAVA_HOME\bin
for every CMD instance.
now lets say i have 1.5, 1.6 1.7 installed on my system then i would open three CMDs and issue the above commands for each installations (1.5, 1.6 and 1.7). now i have path variable pointing to my respective jdk installation.
Comments
I had the same experience. Using this command, where java from cmd we can get the java.exe path locations. Removing the java.exe for the old java version resolved my problem.
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Just copy and replace your 3 Java files:
From this Path: C:\Program Files\Java\jdk1.8.0_331\bin
To this Path: C:\Program Files\Common Files\Oracle\Java\javapath
Files:
- java.exe
- javac.exe
- javaw.exe
Comments
check with set command to see where JAVA_HOME is pointing to...
