This question already has an answer here:
Difference between JAVA_HOME and JRE_HOME
(1 answer)
Closed 6 years ago.
In which scenario we go for the JRE_HOME? If I have not mention JRE_HOME what will happen?
Variable JRE_HOME is used for JRE (Java Runtime Environment). It's the Java Virtual Machine where Java programs run on. My example of %JRE_HOME%: C:\Dev\jre1.8.0_65
Variable JAVA_HOME is used for JDK (Java Development Kit). It's the development kit to create and compile programs in Java. My example of %JAVA_HOME%: C:\Dev\jdk1.8.0_65
Shortly you use JRE in case you care of running programs only. On the other hand developing Java programs requires JDK.
Related
This question already has answers here:
How to set java_home on Windows 7?
(18 answers)
Closed 4 years ago.
I have java 1.9 installed on my machine. I can see it in installed programs. But when i type java -version on command prompt it still shows 1.8. How can i change it ?
I assume you meant 1.8
Windows and Linux allow multiple JRE to be installed. They have different mechanisms for determining which JRE is used by default. Basically, it comes down to your system path.
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:
Eclipse - no Java (JRE) / (JDK) ... no virtual machine
(35 answers)
Closed 7 years ago.
when I click on eclipse it says a jre or jdk must be available in order to run eclipse. etc
how do I fix this?
thanks you
David,
After installed JDK in your machine then configure the PATH, CLASS_PATH and JAVA_HOME variables in the Environment variable then Eclipse will open without any issues.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Eclipse - no Java (JRE) / (JDK) … no virtual machine
I installed the Android SDK and it mentioned that I should download eclipse as well, but when I download and try to run the eclipse.exe, I recieve a message stating "A Java Runtime Environment or Java development kit must be available in order to run eclipse....". I do have JDK, which is the only way the Android SDK would have been installed. Any suggestions?
Set your computer's PATH (environmental variable) to the bin folder of your JDK. Here's how:
Windows 7-Start->Control Panel->System and Security->System->Advanced system settings(panel on the left)->Advanced->Environmental Variables(bottom). Under System Variables find PATH. Select it and hit edit. Point it to the bin of the jdk. If that doesn't work try adding a JAVA_HOME variable to the User variables ( hit new than enter JAVA_HOME for name and the value is the bin folder again). Hopefully that should do it. I feel your pain the same thing happened to me when I first started.