How can all implementations of the interface be integrated into the project?

In Java, there are several approaches to integrate all implementations of an interface in a project:

1. Reflection — using the Reflection API, you can dynamically find all classes implementing an interface if the package or parent class is known.

2. Service Loader — the standard Java mechanism (java.util.ServiceLoader) allows loading implementations of an interface declared in special configuration files in META-INF/services.

3. Frameworks and DI containers — such as Spring, which automatically scan classes and inject the necessary implementations based on interfaces.

Example of using ServiceLoader:

ServiceLoader<MyInterface> loader = ServiceLoader.load(MyInterface.class);
for (MyInterface impl : loader) {
    impl.doSomething();
}

For this, a file META-INF/services/com.example.MyInterface is created in the project resources, listing the full names of implementation classes.