Learn the difference between classes and interfaces once and for all, then get started declaring, implementing, and extending interfaces in your Java programs ...

Java’s interface language feature confuses many Java newbies. Many mistakenly assume that interfaces only sidestep Java’s failure to support multiple implementation inheritance. In reality ...

Huh, I like interfaces.<BR><BR>Multiple inheritance can be useful in some cases, though, but somehow, I have always disliked inheritance in the back of my head... somehow it doesn't fully click ...