a.

Method heading for each method:

• Method heading for project rating is "public void rateProject()".
• Method heading for total rating is "public int totalRating()"...

b.

Preconditions and postconditions of each method:

• Precondition and postcondition of "public void rateProject()" method.
  • Precondition: None.
  • Postcondition: Ratings were attained from user for each category and then assign it to the variable.
• Precondition and postcondition of "totalRating()" method.
  • Precondition: None.
  • Postcondition: This method returns total rating for each category...

c.

Java statement for testing the class:

//Create an object for "ScienceFairProjectRating" class

ScienceFairProjectRating joesProject = new ScienceFairProjectRating();

ScienceFairProjectRating suesProject = new ScienceFairProjectRating();

//Call "initialize()" method to initialize the variables

joesProject.initialize("Weather and You", "U1256", "Joe Minnow");

suesProject...

d.

Implementation of class:

ScienceFairProjectRating.java:

//Import the java package

import java.util.Scanner;

//Define the class

public class ScienceFairProjectRating

{

//Declare the required variables

private String projectName;

private String identifier;

private String submitter;

//Create an object for "RatingScore" class

private RatingScore creativeRating;

private RatingScore thoughtRating;

private RatingScore thoroughnessRating;

private RatingScore technicalRating;

private RatingScore clarityRating;

//Define the "initialize()" method

public void initialize(String name, String id, String person)

{

//Initialize the required variables

projectName = name;

identifier = id;

submitter = person;

creativeRating = new RatingScore();

thoughtRating = new RatingScore();

thoroughnessRating = new RatingScore();

technicalRating = new RatingScore();

clarityRating = new RatingScore();

creativeRating.initialize("How creative was this project", 30);

thoughtRating.initialize("Was scientific thought displayed in the project", 30);

thoroughnessRating.initialize("Did the project cover the material thoroughly", 15);

technicalRating.initialize("Were appropriate technical skill displayed", 15);

clarityRating.initialize("Was the presentation of the project clear", 10);

}

//Define the "rateProject()" method

public void rateProject()

{

//Display the message to get the rating

System.out.println("Please enter ratings for the project " + projectName + "(" + identifier + ")");

/*Call "inputRating()" method using objects of RatingScore class. */

creativeRating.inputRating();

thoughtRating.inputRating();

thoroughnessRating.inputRating();

technicalRating.inputRating();

clarityRating.inputRating();

}

//Define the "totalRating()" method

public int totalRating()

{

//Calculate the total rating and then return it

return creativeRating.getRating() + thoughtRating.getRating() + thoroughnessRating.getRating() + technicalRating.getRating() + clarityRating.getRating();

}

//Define the "maxRating()" method

public int maxRating()

{

//Calculate the maximum rating and then return it

return creativeRating.getMaxRating() + thoughtRating.getMaxRating() + thoroughnessRating.getMaxRating() + technicalRating.getMaxRating() + clarityRating.getMaxRating();

}

//Define the "getRatingString()" method

public String getRatingString()

{

//Calculate the project rating and then return it

return "Project " + projectName + "(" + identifier + ") by " + submitter + " was given the score "

+ totalRating() + "/" + maxRating();

}

//Define the "main()" method

public static void main(String[] args)

{

/*Create an object for "ScienceFairProjectRating" class. */

ScienceFairProjectRating joesProject = new ScienceFairProjectRating();

ScienceFairProjectRating suesProject = new ScienceFairProjectRating();

/*Call initialize() method to initialize the variables. */

joesProject.initialize("Weather and You", "U1256", "Joe Minnow");

suesProject.initialize("Hot Air", "U1275", "Susan Shark");

//Call "ratePorject()" to rate the project

joesProject.rateProject();

suesProject.rateProject();

System.out.println("Judging is completed: ");

/*Call "getRatingString()" method to get the project rating. */

System.out.println(joesProject.getRatingString());

System.out.println(suesProject.getRatingString());

}

}

RatingScore.java:

//Import the java package

import java.util.Scanner;

//Define the class

public class RatingScore

{

//Declare the required variables

private String description;

private int maximumRating;

private int theRating;

//Define the "initialize()" method

public void initialize(String desc, int max)

{

//Initialize the required variables

description = desc;

maximumRating = max;

theRating = -1;

}

//Define "inputRating()" method

public void inputRating()

{

//Read the maximum rating value from user

System...