Java Programming for Complete Beginners - Java 16 - Step 06 - Java Modularization - 03 - Splitting Service and Consumer

The video tutorial explains how to create and manage Java modules for service and consumer projects. It covers the creation of service and consumer modules, resolving compilation errors, and using module paths and dependencies. The tutorial emphasizes the encapsulation and control provided by modularization, allowing selective access to module components.

What is the primary difference between a Java module and a normal Java project?

• A module cannot be compiled.

• A module does not require a package.

• A module can only contain one class.

• A module has a module-info.java file.

What is the purpose of the module-info.java file?

• To store the main method of the module.

• To define the module's metadata and dependencies.

• To list all classes in the module.

• To compile the module into a jar file.

Why might a consumer module have a compilation error after copying code from a jar?

• The code is written in a different programming language.

• The consumer module is missing required dependencies.

• The jar file is corrupted.

• The module-info.java file is empty.

How can you resolve a module dependency error in a Java project?

• By recompiling the module.

• By renaming the module.

• By deleting the module-info.java file.

• By adding the required module to the module path.

What is the role of the 'requires' directive in a module-info.java file?

• To export all packages in the module.

• To list all classes in the module.

• To declare dependencies on other modules.

• To specify the main class of the module.

What does the 'exports' directive in a module-info.java file do?

• It specifies which packages are accessible to other modules.

• It lists all dependencies of the module.

• It compiles the module.

• It deletes unused packages from the module.

How does modularization enhance encapsulation in Java?

• By removing the need for a classpath.

• By enabling multiple main methods.

• By restricting access to only exported packages.

• By allowing all classes to be public.