Java programming lab

Lab Goals This lab gives you a look at some of the object oriented features built into Java, namely: I) Inheritance, which allows you to create subclasses to override the behavior of parent classes 2)The classpath and packages, which help to organize the classes of a large project into multiple directories 3) Jar files, which pack multiple class files into a single compressed file for easy distribution Motivation Inheritance is an important aspect of object-orientated design. It allows one class to customize its behavior while keeping the same methods as the parent class. For example, a class called Vehicle' might have a method called "move". The subclasses of vehicle "Boat", "Car" and "Tank" will also have "move" methods, but will accomplish this in different ways. In this lab, you will write a set of classes that descend from a parent class "GeometricObj ect". Each of these will have different dat and be able to calculate their area and perimeter. In addition, this lab will introduce you to a number of features and utilities provided by the Java language and the jdk: namely the classpath, packages, and jar files. Java packages allow you to manage large projects that have more content than you want to put in a single directory. The jar utiltiy is a convenient publishing method for ajava program. It zips up a bunch of class files into a single file that can be executed by the virtual machine (VM) In this lab, you will learn how to make a jar file Inheritance Part 1) Copy the abstract class GeometricObject below, and save it in the file Geometricobjectjava: Lab 10