First uninstall all the versions of Java, install Jdk 8. Open new command prompt and type java -version.

Dec 12, 2011 · There are two varieties of JRE available. Java VM: IBM vs. Sun. Is there a way to know which JRE I am using through JavaScript or some Java issued command.

Sep 19, 2013 · After installing Java, set the path in environmental variables and then open the command prompt and type java -version. If installed properly, it'll list the java version, jre version, etc.

Dec 4, 2017 · To check which version of Java is installed, follow this procedure: -Open a Linux command prompt. -Enter the command java -version. -If Java version is installed on your system, …

Oct 3, 2013 · I downloaded this Java JDK and installed it. But when I go to the command prompt to check the version, it says it's not recognized. Is anyone else experiencing this issue with the latest …

How can I check whether Java is available (in the PATH or via JAVA_HOME) from a bash script and make sure the version is at least 1.5?

Apr 6, 2016 · I need a bash line to check if java version currently installed is Oracle's or OpenJDK. A one-liner by parsing the output of the java -version command: java -version java Oracle output: java …

My version of file didn't show that, but I was able to check the class manually with this command: hexdump ~/bin/classes/P.class | head. Just look at the eighth byte and convert to decimal.

We are running in a Windows environment and I had to find a way to get the Tomcat version outside of the Java environment. Without knowing the version, I could not determine the directories.

Dec 6, 2012 · I ran the command java -version and I found out that I was using java version 1.7.0_09. But when I tried to check on C:\Program Files\Java\ directory, I don't seem to find the same version.