Abstract classes and interfaces are plentiful in Java code, and even in the Java Development ... An instance field would also work here, but a local variable declared outside of a lambda would ...

Java was created over 25 years ago, and it is still one of the most popular programming languages ... As a consequence of this ongoing work, Java continues to be an essential choice to develop ...

The Java code below shows the details of how to use a variant of Abstract Factory design pattern to do the dependency injection. //Abstract Factory for Dependency Injection //Factory interface public ...