java - How to know the jdk version on my machine? - Stack Overflow
Java Runtime JRE and the Java development kit JDK are two separate things. If you want to check the version of the Java compiler used within your local JDK use javac -version.
java --version doesn't work in the command line - Stack Overflow
Jul 18, 2012 · I tried java --version in the command line and I get : Unrecognized option: --version Error: Could not create the Java virtual machine Error: A fatal exception has occurred. Program will exit.
java - Which JRE am I using? - Stack Overflow
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.
Java Versions and Compatibility - Stack Overflow
Apr 10, 2023 · A Java Runtime Environment (JRE) is an implementation of the Java SE specifications, a complete Java platform, with all the software you need to execute an app written in a JVM …
List of Java class file format major version numbers?
The latest published version of the JVM spec can be found here (including some previous versions) Minor Version Number Chapter 4 of JVM (see link above): For a class file whose major_version is 56 …
"java -version"in cmd gives no result - Stack Overflow
Dec 17, 2020 · 19 Move C:\Program Files\Java\jdk-14.0.2\bin\java to the beginning in the PATH variable. Important - Open a new cmd window and use the command java -version. Any already …
How to config java version in Visual Studio Code?
Jul 28, 2022 · 6 I installed OpenJDK 18 in my Fedora 36 and installed "Extension Pack for Java" on my Visual Studio Code. In my machine, there have 3 versions of java: But when I create a maven project …
Using alternative maven and java version in vscode integrated terminal
2 I want to set the maven version and java version in vscode integrated terminal to versions other than those specified in system environment variables. I am using the "Maven for Java" extension in …
java - how to check the jdk version used to compile a .class file ...
The project uses Java 1.7. If I check inside of the MANIFEST.MF of amazon sdk it says Build-Jdk: 1.8.0_111 , but if I use javap -verbose MyClass | grep "major" it says major version: 50 which means …
Why does java -version return an old version? - Stack Overflow
cmd: java -version And it says: java version "1.3.1_01" But it should say 1.6.0_16, since I have installed the latest version. What should I do to make Java use the latest version instead of the old one?