Why does Java's standard class library contain empty interfaces like Cloneable and Serializable? Find out why in this sixth installment in the "Object-oriented language basics" series. You'll also ...

To create a Stack instance and validate the assertions defined, you need to implement the Stack interface. Listing 2 shows Java class StackImpl, which implements the Stack interface.

Functional supplier interface in Java tutorial There are only half a dozen classes you really need to master to become competent in the world of functional programming. The java.util.function package ...