In Java, the @Inject annotation is used in the context of dependency injection, typically with frameworks like CDI (Contexts and Dependency Injection) or Spring. It allows for the automatic injection of dependencies into a class, promoting loose coupling and easier testing. Here's a basic example:

import javax.inject.Inject;

​

public class Car {

​

    private Engine engine;

​

    // The engine dependency will be injected automatically

    @Inject

    public Car(Engine engine) {

        this.engine = engine;

    }

​

    public void start() {

        engine.run();

    }

}

In this example, the Engine dependency is injected into the Car class by the framework, without the need to manually instantiate it.