In this article you’ve leaned how to implement the Builder Pattern using nested classes in Java. You’ve seen an example where this provides improved encapsulation compared to a more ...

Nested classes are classes that are declared as members of other classes or scopes. Nesting classes is one way to better organize your code. For example, say you have a non-nested class (also ...

(See Effective Java, "Prefer interfaces to abstract classes".) With sealed interfaces, library authors no longer have to choose between using polymorphism as an implementation technique ...

The modifier non-sealed is the first hyphenated keyword proposed for Java. The non-sealed keyword brings flexibility into the rigid world of sealed classes, to allow a particular implementation to ...

Traditional Java implementation techniques also do not interoperate ... Starting up Sun's JVM and JIT compiling and applications' classes take a huge amount of time and memory. For example, Sun's IDE ...