Type Hinting and Dependency Injection
Learn about type hinting the injected objects and setting them using the setter methods.
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Type hinting injected objects
Though type hinting is not necessary for dependency injection, it is preferred in situations when we want to check the dependency of the main class on types of objects. In our example, we expect any Driver class that uses the Car object to also have a sayYourName() method. To do that, let’s create a ...