How to install Bellsoft Liberica JDK 21 in Manjaro Linux 23 with JAVA_HOME Environment Variable
In this video we are going to see How to install Bellsoft Liberica JDK 21 in Manjaro Linux 23 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 CountDigits and CountDigitsClient Modules. Each Module must contain module-info.java which is mandatory.
classes --- will store all the compiled class files of Java Modules.
Here CountDigits Module contains module-info.java which exports the com.javafrm package, so that other modules can access the package and com.javafrm package contains CountDigits.java.
Class name and Method should be public, then only you can access this class and required methods from other modules.
Next CountDigitsClient Module contains contains module-info.java which requires (calls) CountDigits Module.
It contains org.javafrm package which contains CountDigitsClient.java (Main class) and access the class and methods from CountDigits Module.
Example Java Commands:
javac --module CountDigitsModule -d /opt/Java-Module-Programs/Modules/classes --module-source-path /opt/Java-Module-Programs/Modules/src
javac --module CountDigitsClientModule -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 CountDigitsClientModule/org.javafrm.CountDigitsClient
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