I'm not sure which version of java I have, and would like to know if there is a command to see the version of java that is installed and active. Also, which version works best? All this on 32bit …

1 Márta 2016 · Apt-get won't overwrite the existing java versions. To switch between installed java versions, use the update-java-alternatives command. List all java versions: update-java …

13 Aib 2012 · I actually have version 6.22 of java and would like to update to version 6.30. So after moving the extracted directory java-6-oracle into /usr/lib/jvm I do not know what to do, since the …

13 Aib 2018 · I have about 35 different JREs installed in various nonstandard paths on a Linux server, but I cannot execute java -version as they are owned by other users. I also cannot run …

14 Beal 2016 · PPAs such as 'ppa:webupd8team/java' used in many Java installation tutorials now become unavailable. Here I would like to share how I installed Java 8 on Ubuntu 16.04, and set …

24 MFómh 2016 · You can write a simple bash script to check this out: Open any text editor (preferrably vim or emacs). create a file named script.sh (or any name with the .sh extension). …

7 Beal 2021 · Since you have previously checked with whereis whether your binary is installed, now you can check if it can be executed properly : does its location belong to your PATH …

10 Ean 2022 · When you called java from Windows, it was smart enough to add the .exe, and run the Windows copy of Java. But, when you switched to WSL, when you typed java, it ran the …

However, using update-java-alternatives with a JDK Version changes both programs for me. Using the first commands, you can use a Java VM and Java Compiler from different JDKs. update …

17 Feabh 2016 · Should I remove the old java? I don't want it to interfere with the new one, and the system is low on memory. Will it have any effect on the Ubuntu if I remove it?