What are the advantages of modules in Java 9?

##Moduleis a software package container designed forreuse. Each module contains amodule descriptor, which contains information about themodule name,module dependencies(the names of other modules it depends on) and the names of thepackages it exports, these Packages can only be used by dependent modules

• Strong encapsulationis one of the main advantages of the module system because "public" access specifier is no longer accessible to everyone. By using the module system, we can allow external applications to access a limited set of packages.
It makes our application
• lightweightso it can be run on a greater number of devices. Since it is lightweight, itimproves the performance of the application.
This architecture allows us to separate the application into
• externalandhiddenpackages, making it easy to follow the separation of concerns principle. Some internal classes in
packages such as
• sun.security.*,com.sun .crypto.*are no longer accessible because these packages are now Hidden, thusincreasing security.

p>Modules can be declared in a file named "

module-info.java", which is the module descriptor .

module com.tutorialspoint.app{ // Modules upon which the module "com.tutorialspoint.app" depends on requires com.tutorialspoint.services; // Packages exposed by this module that can be used by other modules exports com.tutorialspoint.app.util; }

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