This question already has answers here:
Linux/Unix environment variables
(4 answers)
Closed 3 years ago.
I have installed oracle java JDK 8 to my new OS (Ubuntu)
but I couldnt find where should I add environment variable like in windows so that I can use java from any where of the system.
Can anyone help ?
Add these lines at the end of the user profiles in the ~/.profile file or, as a superuser, at the end of the global profiles in the /etc/profile file.
export JAVA_HOME=<jre installation home directory like /usr/lib/jvm/jrel.8.0>
export PATH=$JAVA_HOME/bin:$PATH
Logout and login again.
Related
This question already has answers here:
How to set java_home on Windows 7?
(18 answers)
Closed 4 years ago.
I have developed a JAVA application for signature verification and I want to develop an Apache Nifi Processor for this JAVA application.
When I want to run .bat file in cmd i.e. run-nifi.bat I get this error :
"The JAVA_HOME environment variable is not defined correctly. Instead
the PATH will be used to find the java executable."
Also I can not find my processor at http://localhost:8080/nifi
Just define JAVA_HOME system environment variable and point it to your JDK dir. More detailed answer: How to set java_home on Windows 7?
This question already has answers here:
How to set the environment variables for Java in Windows
(17 answers)
Closed 5 years ago.
On my windows 7, 64 bit pc, I have installed java but while typing java -version in command prompt it shows java' is not recognized as an internal or external command, operable program or batch file.".and there is no java folder in program files even.The java version which i have installed is 8 and it is 64bits.
Try setting the environment variables.
The answer can be found on this SO page.
You must install the latest version of JDK from here:
Download JDK From Here
After Installing the latest version follow these steps :
Setting Path in Java
Hope this will help you out.
This question already has answers here:
Environment variables in eclipse.ini file
(3 answers)
Closed 4 years ago.
Is it possible to use environment variables like %JAVA_HOME% within eclipse.ini?
I'd like to include the following without having to hardcode the absolute path to jdk:
-vm
%JAVA_HOME%\bin\javaw.exe
But that's not working and eclipse complains about missing jdk.
By the way: cmd echo %JAVA_HOME% shows the correct path.
It is not possible. There is already a bug opened for this.
Also see this question: eclipse.ini variables
This question already has answers here:
Installing JDK without administrator privileges
(14 answers)
Closed 6 years ago.
How to install Java JDK 8 in windows?
Do I require admin right?
What Happens if i just copy JDK from one system to another with admin rights.
Steps To Do that:
STEP1 : Install JAVA JDK 8 in personal system where you have admin rights.
STEP2 : Copy the install JDK folder to system where you dont have admin rights.
STEP3: Go to Start Menu and Search environment and click on "Edit environment variable for your account"
STEP4: Now Click on Add in User Variables and add below local environment variables.
A. JAVA_HOME
B. PATH
C. CLASSPATH
It works absolutely fine. I have been using JDK like this for almost a year.
I found similar post but it has different technique.
Installing JDK without administrator privileges
This question already has answers here:
Get path to java JRE
(3 answers)
Closed 9 years ago.
I am wondering if there is a way, from java, to find the location of the java.exe running the program?
My use case is that I am trying to have Java execute a batch script that needs JAVA_HOME to be set in the local environment. The environment that I am executing this on may not have JAVA_HOME set or even the java executable on the path, but I would assume that the JVM knows where its executable is located.
System.getProperty("java.home");
is one option. Which shows the following directory in my machine:
C:\Program Files\Java\jdk1.7.0_02\jre
Most important system properties are listed here.
The java.home property will supply the path to the currently running JRE, regardless of what is installed, or what JAVA_HOME is. See the Oracle documentation here.
System.getProperty("java.home");