1. Identify the output of following Java code. Justify the syntax.

File Name:Instuctor.java

/**

This class stores data about an instructor.

*/

public class Instructor

{

private String lastName; // Last name

private String firstName; // First name

private String officeNumber; // Office number

/**

This constructor initializes the last name,

first name, and office number.

@param lname The instructor's last name.

@param fname The instructor's first name.

@param office The office number.

*/

public Instructor(String lname, String fname,

String office)

{

lastName = lname;

firstName = fname;

officeNumber = office;

}

/**

The copy constructor initializes the object

as a copy of another Instructor object.

@param object2 The object to copy.

*/

public Instructor(Instructor object2)

{

lastName = object2.lastName;

firstName = object2.firstName;

officeNumber = object2.officeNumber;

}

/**

The set method sets a value for each field.

@param lname The instructor's last name.

@param fname The instructor's first name.

@param office The office number.

*/

public void set(String lname, String fname,

String office)

{

lastName = lname;

firstName = fname;

officeNumber = office;

}

/**

toString method

@return A string containing the instructor

information.

*/

public String toString()

{

// Create a string representing the object.

String str = "Last Name: " + lastName +

" First Name: " + firstName +

" Office Number: " + officeNumber;

// Return the string.

return str;

}

}

File Name: TextBook.java

/**

This class stores data about a textbook.

*/

public class TextBook

{

private String title; // Title of the book

private String author; // Author's last name

private String publisher; // Name of publisher

/**

This constructor initializes the title,

author, and publisher fields

@param textTitle The book's title.

@param auth The author's name.

@param pub The name of the publisher.

*/

public TextBook(String textTitle, String auth,

String pub)

{

title = textTitle;

author = auth;

publisher = pub;

}

/**

The copy constructor initializes the object

as a copy of another TextBook object.

@param object2 The object to copy.

*/

public TextBook(TextBook object2)

{

title = object2.title;

author = object2.author;

publisher = object2.publisher;

}

/**

The set method sets a value for each field.

@param textTitle The book's title.

@param auth The author's name.

@param pub The name of the publisher.

*/

public void set(String textTitle, String auth,

String pub)

{

title = textTitle;

author = auth;

publisher = pub;

}

/**

toString method

@return A string containing the textbook

information.

*/

public String toString()

{

// Create a string representing the object.

String str = "Title: " + title +

" Author: " + author +

" Publisher: " + publisher;

// Return the string.

return str;

}

}

File name:Course.java

/**

This class stores data about a course.

*/

public class Course

{

private String courseName; // Name of the course

private Instructor instructor; // The instructor

private TextBook textBook; // The textbook

/**

This constructor initializes the courseName,

instructor, and text fields.

@param name The name of the course.

@param instructor An Instructor object.

@param text A TextBook object.

*/

public Course(String name, Instructor instr,

TextBook text)

{

// Assign the courseName.

courseName = name;

// Create a new Instructor object, passing

// instr as an argument to the copy constructor.

instructor = new Instructor(instr);

// Create a new TextBook object, passing

// text as an argument to the copy constructor.

textBook = new TextBook(text);

}

/**

getName method

@return The name of the course.

*/

public String getName()

{

return courseName;

}

/**

getInstructor method

@return A reference to a copy of this course's

Instructor object.

*/

public Instructor getInstructor()

{

// Return a copy of the instructor object.

return new Instructor(instructor);

}

/**

getTextBook method

@return A reference to a copy of this course's

TextBook object.

*/

public TextBook getTextBook()

{

// Return a copy of the textBook object.

return new TextBook(textBook);

}

/**

toString method

@return A string containing the course information.

*/

public String toString()

{

// Create a string representing the object.

String str = "Course name: " + courseName +

" Instructor Information: " +

instructor +

" Textbook Information: " +

textBook;

// Return the string.

return str;

}

}

File name:CourseDemo.java

/**

This program demonstrates the Course class.

*/

public class CourseDemo

{

public static void main(String[] args)

{

// Create an Instructor object.

Instructor myInstructor =

new Instructor("Kramer", "Shawn", "RH3010");

// Create a TextBook object.

TextBook myTextBook =

new TextBook("Starting Out with Java",

"Gaddis", "Scott/Jones");

// Create a Course object.

Course myCourse =

new Course("Intro to Java", myInstructor,

myTextBook);

// Display the course information.

System.out.println(myCourse);

}

}