Glorified classes in the Java language

Question

Some classes in the standard Java API are treated slightly different from other classes. I\'m talking about those classes that couldn\'t be implemented without special support f

Answer 1

Since the important classes were mentioned, I'll mention some interfaces:

The Iterable interface (since 1.5) - it allows an object to participate in a foreach loop:

Iterable iterable = ...;
for (Foo foo : iterable) {

}

---

The Serializable interface has a very special meaning, different from a standard interface. You can define methods that will be taken into account even though they are not defined in the interface (like readResolve()). The transient keyword is the language element that affects the behaviour of Serializable implementors.