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Open CMD (In Windows click Start then type cmd, Command Prompt or PowerShell) and execute the following commands. For multiple java installations: wmic product where "name like 'Java%'" get name, version. For default java installation: java -version. Share.
For me on win 10, javac -version showed java7 and java -version showed java8.Doing "where java" on command prompt showed java at three locations. I had to remove Java from C:\Windows\System32, Remove entry of "C:\ProgramFile\Oracle\Java\javapath"and "C:\ProgramData\Oracle\Java" from path variable, keep only Jdk7 entry in path variable worked ...
I just bought a Win 7 PC, installed jdk1.6 and Netbeans, NB works fine, but when I did "java -version" in a command prompt, it can't find java, why ? How to fix it ? Edit : I thought the installat...
7. You can go to \computer-name\c$\Program Files\Java\jre6\bin. Find the java.exe and right click on it. Then go to the "Version" tab. You can also view the Deployment.properties file in: \\computer-name\c$\Documents and Settings\USER\Application Data\Sun\Java\Deployment\deployment.properties. Share. Improve this answer.
After reviewing the other recommendations, I still found Windows 10 to be running the wrong version of Java. The correct version of Java ran in a command shell, but Windows would not start an application with the correct version of Java. In my system, there was yet another entry in the Registry.
Edit: Specify the -vm argument after the -startup and -launcher.library arguments but before -vmargs.Additionally the path to the JRE should be on the line after -vm without the path quoted, e.g.
sudo apt-get update. Install java using. sudo apt-get install oracle-java8-installer. 2.Install Glassfish. The main difference between Java-SE and Java-EE is the libraries there are some additional libraries and one of that is glassfish. When you install this library you can easily import classes under package javax.
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Since Java supports a -version command line option, you can use it to select a specific version to run, e.g.: java -version:1.7 -jar [path to jar file] will run a jar application in Java 1.7, if it is installed. For further details, see Oracle's documentation.
4. As Romeo has pointed, java -version writes in stderr, not in stdout, so you should use: var=$(java -version 2>&1) If you want to get the version only and not all the output of the java -version command, more convinient for scripting for example, you can use something like: var=$(java -version 2>&1 | awk -F '"' 'NR==1 {print $2}')