Duplicate code adds unnecessary bulk to the class. Java provides a way to avoid this duplication by offering this() syntax for having one constructor call another: class Book { // ... Book(String ...

Classes and objects in Java must be initialized before they are ... and because it’s faster to access an array element than to call a method, developers resort to performance tricks such as ...

In the age of Servlets and JSPs, Java’s main function took a backseat to these technologies that were initialized with a call to their init() method, and invoked through calls to their doGet() or ...