Question

Consider the following incomplete declaration of a Book class for 1a-1c.

public class Book

{

   private String title, author, edition;

   private int numPages;

   public Book { //part (a) } //default    

   public Book(String t, String a, String e, int np) { //part (b) }

   public String getTitle() {…} //returns the title of this Book

   public String getAuthor() {…} //returns the author of this Book

   public String getEdition() {…} //returns the edition of this Book

   public int getNumPages() {…} //returns numPages of this Book

   public void printBookInfo() {

      System.out.print(title + “ written by “ + author);

   }

}

1a) Write the default constructor for the Book class. Our default book will have the following values:

            title: Surviving CSC330 in Times of Crisis

     author: Richard Weir

     edition: 1

     numPages = 100

1b) Write the parameterized constructor for the Book class. All instance variables need to be assigned values.

1c) Declare an instance of the Book class called myBook. myBook can have any values you would like (that are appropriate!).

Answer 1

class Book

{

        private String title, author, edition;

        private int numPages;

        public Book() { // part (a)
                title = "Surviving CSC330 in Times of Crisis";
                author = "Richar Weir";
                edition = "1";
                numPages = 100;
        }

        public Book(String t, String a, String e, int np) { // part (b)
                title = t;
                author = a;
                edition = e;
                numPages = np;
        }

        public String getTitle() {
                return title;
        } // returns the title of this Book

        public String getAuthor() {
                return author;
        } // returns the author of this Book

        public String getEdition() {
                return edition;
        } // returns the edition of this Book

        public int getNumPages() {
                return numPages;
        } // returns numPages of this Book

        public void printBookInfo() {

                System.out.print(title + " written by " + author);

        }

}

Answer 1.c:

Book myBook = new Book("Java","Uday","1.12",10000);

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