Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes ...

8 guidelines for writing reusable Java code. Define the rules for your code; Document your APIs; Follow standard code naming conventions; Write cohesive classes and methods ...

Java Predicate as an inner class. If you're a developer who prefers inner classes, you could clean this up a bit and reduce the verbosity of the example. But, the resulting Java 8 Predicate example ...

Java Console class input and ouput. The easiest way to garner user input in a Java program is to use the System’s Console class. Introduced in Java 6, Java’s System Console class provides two simple ...