This is the question I am stuck on - Create a class named Rock that acts as a superclass for rock samples collected and catalogued by a natural history museum. The Rock class contains the following fields: sampleNumber - of type int description - A description of the type of rock (of type String) weight - The weight of the rock in grams (of type double) Include a constructor that accepts parameters for the sample number and weight. The Rock constructor sets the description value to "Unclassified". Include get methods for each field. Create three child classes named IgneousRock, SedimentaryRock, and MetamorphicRock. The constructors for these classes require parameters for the sample number and weight. Search the Internet for a brief description of each rock type and assign it to the description field using a method named setDescription inside of the constructor. This is what I am given - import java.util.*; public class DemoRocks { public static void main(String[] args) { // Write the demo program here } } --------------------------- public class IgneousRock { // Define the IgneousRock class here } ------------------------ public class MetamorphicRock { // Define the MetamorphicRock class here } --------------------------- public class Rock { // Define the Rock class here } ---------------------------------- public class SedimentaryRock { // Define the Sedime

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter11: More Object-oriented Programming Concepts

Section: Chapter Questions

Problem 1GZ

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This is the question I am stuck on -

Create a class named Rock that acts as a superclass for rock samples collected and catalogued by a natural history museum. The Rock class contains the following fields:

sampleNumber - of type int
description - A description of the type of rock (of type String)
weight - The weight of the rock in grams (of type double)

Include a constructor that accepts parameters for the sample number and weight. The Rock constructor sets the description value to "Unclassified". Include get methods for each field.

Create three child classes named IgneousRock, SedimentaryRock, and MetamorphicRock. The constructors for these classes require parameters for the sample number and weight. Search the Internet for a brief description of each rock type and assign it to the description field using a method named setDescription inside of the constructor.

This is what I am given -

import java.util.*;

public class DemoRocks

{

public static void main(String[] args)

{

// Write the demo program here

}

---------------------------

public class IgneousRock

{

// Define the IgneousRock class here

}

------------------------

public class MetamorphicRock

{

// Define the MetamorphicRock class here

}

---------------------------

public class Rock

{

// Define the Rock class here

}

----------------------------------

public class SedimentaryRock

{

// Define the SedimentaryRock class here

}

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