In Java it is possible to define two or more methods within the same class that sharethe same name, as long as their parameter declarations are different. When this isthe case, the methods are said to be overloaded, and the process is referred to asmethod overloading. Method overloading is one of the ways that Java implementspolymorphism.When an overloaded method is invoked, Java uses the type and/or number ofarguments as its guide to determine which version of the overloaded method toactually...

// This program uses a parameterized method. class Box {             double width;            double height;            double depth; // compute and return volume             double volume() {                                      return width * height * depth;      ...

Classes usually consist of two things: instance variables and methods.This is the general form of a method: type name(parameter-list) { // body of method } Here, type specifies the type of data returned by the method. This can be any valid type, including class types that you create. If the method does not return a value, its return type must be void. The name of the method is specified by name. This can be any legal identifier other than those already used by other items within the current...

When you create a class, you are creating a new data type. You can use this type to declare objects of that type. However, obtaining objects of a class is a two-step process. First, you must declare a variable of the class type. This variable does not define an object. Instead, it is simply a variable that can refer to an object. Second, you must acquire an actual, physical copy of the object and assign it to that variable. You can do this using the new operator. The new operator dynamically allocates...

The most important thing to understand about a class is that it defines a new data type. Once defined, this new type can be used to create objects of that type. Thus, a class is a template for an object, and an object is an instance of a class.A class is declared by use of the class keyword....