Can i install multiple jre versions

Yeah, you can install as many Java SDKs as you want. When you develop you just use the JDK you want to use. If there are two versions of JDK or JRE installed on a system, one with the new version-string format introduced in JDK 9, and the other with the older version format, then there will be two different CurrentVersion registry key values.

For example, if JDK 1. The list is displayed in alphabetical order. Check if Java name is listed in the installed software list. We can call different jvm like JDK 1. Hi Kolton, yes I know, I couldn't find an easy way to fix this. But the changes are not permanent, they only apply to the current command line. Therefore I think it is OK. Thanks for the correction! You are absolutely right. I've changed it in the screenshots and text. Hello everyone. First of all thanks for the script.

In my case the change of jdk worked but each time a new terminal was launched the default jdk came back As a result, I modified the script so that now with each change, the jdk selected by script is 'saved'. You have to add the REG be careful , only in one line line as below by adapting the right path of the jdk to your configuration:.

Great idea JavaMan Could you please share the correct "reg add" command? I think it will help. Instead of using "reg add", you can use "setx". It's shorter and has an immediate effect, while the changes made with "reg add" take several minutes, sometimes even a restart to be effective. I've added new commands ending with "-user" and "-system" to set the user and system-wide default Java version permanently see section "Temporary, Permanent and System-Wide Java Version Changes".

Thanks for the informative guide. I didn't set it up on the Windows 10 Server but I think that when it starts as a service using Tomcat9. I am not a Windows aficionado so I am not sure what the registry key would be and there are only about of them.

But usually, Tomcat has a setenv. This has been one of the most fruitful topics I have read and implemented in a long time. This problem of working on multiple Java versions simultaneously has been haunting me for a long time. The solution provided is cute, simple and it is going to save several hours of misery for me. I wrote a litte tool to help me do this.

Any idea. I'm trying to switch between Java 8 and Java I have very little experience with this stuff, and any help would be greatly appreciated. Hi Chase, you can use the recently added commands "java8-user" and "javauser" for example to set the Java version permanently for your user account see the newly added section "Temporary, Permanent and System-Wide Java Version Changes".

Hi, would like these scripts if they worked, had to change what the java8 script goes to because it went for jdk1.

This is fine, however, the script doesn't work properly with -user suffix, given, my computer seems to be special in how it does things. Thanks for taking the time to make the tutorial. Fantastic Guide, I think it is one of the best. Click Next. The javaw. You should now see JRE 1. Click OK. Exit the Java Web Start console. Verify you can use both applications that use the JRE, and view report graphs in the Webtrends 7.

Next Steps. For this you can control all the things from java console from control panel in windows. The Overflow Blog. Does ES6 make JavaScript frameworks obsolete?

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