module-info.java is an important file in the modular system, and it contains modular metadata which describes the behavior module. It is a Java file, but it is not like a traditional Java file. It has its own syntax and it's compiled into the module-info.class file.
The following is the syntax that we have to follow when creating module-info.java:
module <module-name> { requires <module-name-1>; requires <module-name-2>; . . requires <module-name-n>; exports <package-1>; . . exports <package-n>;}
The following is an example of the module-info.java file, where each module contains a unique ID and optional module descriptor details:
module com.packt.java9dependency.chapter2 { exports com.packt.java9dependency.chapter2.services; ...
