Maximizing code reuse in your Java programs means writing code ... as independent as possible. Here’s an example of a highly coupled class: public class CustomerOrderService { private ...

To test the Supplier interface, we simply code for a loop which creates a new RandomDigitSupplier interface on each iteration, and prints out the random value. /* Test class for the Java Supplier ...

To show you an old school, pre-Java 8 UnaryOperator example, we will create a single class ... If you implement the UnaryOperator interface with a complete Java class, it will create completely valid ...