Question

Define an inheritance relationship of a class Sphere in Java which is an inherited subclass of a Circle . Circle class contain a constructor with no arg and a constructor with double: radius, string class. name_object and boolean isfilled or not. Define get/set methods for this variable. Define method named getArea0 that returns the area of this circle. A method named toStringO that returns a string The Sphere class will contain one variable: double: radius; Define constructor with no-arg description for the circle. and constructor with radius, name_object and isfilled. The get/set methods of data fields. Define methoc named getAreaO and getVolume 0 that returns the area and volume of sphere. A metho named toStringO that returns a string description of object.

Answer 1

In Java, inheritance relationships between classes can be defined using the 'extends' keyword. The Sphere class can inherit from the Circle class, which would make Circle the superclass and Sphere the subclass.

Step-by-step explanation:

In Java, we can define an inheritance relationship between two classes using the 'extends' keyword. For the inheritance relationship between the Sphere and Circle classes, the Sphere class would be the subclass, and the Circle class would be the superclass.

To define this inheritance relationship in code, we can declare the Sphere class with the 'extends' keyword, followed by the name of the superclass, which is Circle. Here's an example:

public class Sphere extends Circle {
// Sphere class implementation
}

This would signify that the Sphere class inherits all the attributes and methods of the Circle class. The Circle class can have its own set of variables and methods, including the constructors and get/set methods for its variables.