Readers have returned quite a bit of feedback concerning, “Abstract Classes Vs. Interfaces” from ... Tony, a Sun-certified Java 1.1 programmer and Java 2 developer, has worked with Java ...

If you’ve read my Java 101 tutorial ... In cases where the class and interface carry the same name, nesting can also help you avoid a name conflict between the two. Suppose you want to model ...

Here we see how sum and product types go together; we are able to say "a circle is defined by a center and a radius", "a rectangle is defined by two ... Java, "Prefer interfaces to abstract classes".) ...