How can we create a service provider interface in Java 9?

Provides services Modules that implement the interface contain the "provides" statement in the module descriptor file. If a module does not have a "provides" statement in the module descriptor file, the service loader cannot load the module.

We can create a Service Provider Interface by using the following steps:

• We create a new module com.tutorialspoint.serviceproviderinterface.
• In the src/main/java directory, we create the "module-info.java" file.
• In the source directory, we create the package com.tutorialspoint.serviceproviderinterface.spi.
• Finally, we create the interface containing the method ServiceProviderInterface: printServiceName()

Below we can define the service provider interface.

<strong>package com.tutorialspoint.serviceproviderinterface.spi;

public interface ServiceProviderInterface {
   void printServiceName();
}</strong>

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