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 ...

What is a Java string? A Java string is a sequence of characters that exists as an object of the class java.lang. Java strings are created and manipulated through the string class. Once created, a ...

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.

Since Object is the superclass of all java classes, the finalize method is available for every java class. That's why garbage collector can call the finalize() method on any java object.

It is recommended that all subclasses override this method. The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign ...

Here's a quick look at the three types of class loaders and everything you need to know to work with them in your Java programs.