Command to check java version in linux

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Now, if you run this program on a Linux machine where an unsupported Java version is installed, you will encounter an exception.įor example, if your program is compiled on Java 11, it can't be run on a machine where Java 8 is installed.

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When a Java program is compiled, the build environment sets the oldest JRE version the program can support. If you are a Java developer, it is normal to have multiple Java versions installed on your machine to support different build environments.

 

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