Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

In this Java tutorial, you’ve learned how to use class field initializers and class initialization blocks to initialize classes, and how to use constructors, object field initializers, and ...

However, the Java Platform provides a data structure that greatly simplifies the use of reference objects like this, called the java.util.WeakHashMap class. WeakHashMap works exactly like a hash ...

Instances are the foundation of object-oriented programming. Static methods are ones that aren't passed in any instance variables. As such, if you move static methods and static variables into a ...

Loitering Objects and Java Framework Design. By Leonard Slipp ; February 5, 2001; ONE OF THE key objectives early in the design of Java was to create an environment that eliminated the memory ...

Object-oriented systems are usually partitioned into layers of related responsibilities and only dependencies in one direction are allowed, from higher layers (more specific, less reusable) to lower ...