How to install Bellsoft Liberica JDK 21 in Ubuntu 22.04 LTS with JAVA_HOME Environment Variable

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java frm

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Published on January 8, 2024 4:17:07 PM ● Video Link: https://www.youtube.com/watch?v=61i2Ak7c9-w

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Tutorial

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In this video we are going to see How to install Bellsoft Liberica JDK 21 in Ubuntu 22.04 LTS for all users with JAVA_HOME Environment Variable and How to Compile and Run Java Module Program.

In this Example.
src --- contains two java modules CombSort and CombSortClient Modules. Each Module must contain module-info.java which is mandatory.
classes --- will store all the compiled class files of Java Modules.

Here CombSort Module contains module-info.java which exports the com.javafrm package, so that other modules can access the package and com.javafrm package contains CombSort.java and has one method.
Class name and Method should be public, then only you can access this class from other modules.
Next CombSortClient Module contains contains module-info.java which requires (calls) CombSort Module.
It contains org.javafrm package which contains CombSortClient.java (Main class) and access the class and methods from CombSort Module.

Example Java Commands:

javac --module CombSortModule -d /opt/Java-Module-Programs/Modules/classes --module-source-path /opt/Java-Module-Programs/Modules/src

javac --module CombSortClientModule -d /opt/Java-Module-Programs/Modules/classes --module-source-path /opt/Java-Module-Programs/Modules/src

java --module-path /opt/Java-Module-Programs/Modules/classes --module CombSortClientModule/org.javafrm.CombSortClient




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