/**
 * Example of a generic Book Class
 * @author Brad Rippe
 * @version 1.0
 */
public class Book {

	public static final int MAXPAGES = 500;	// static variables belong to the class
    										// all Books will have the same MAXPAGES

	private String preface; 			// instance variable
	private String contents; 			// (attributes)
	private String[] bodyPages;
	private String glossary;

    /**
 	 * Default constructor - creates a book
	 * Takes zero parameters and initializes all instance variables
     * to there default values
 	 */
	public Book() { 				// default constructor - no parameters
		preface 	= null;			// if we don't initialize the variable
		contents 	= null;			// the jvm will do it for us.
		bodyPages 	= null;			// all primitive ints will be initalized to 0
		glossary 	= null;			// all boolean type will be initalized to false
	} 								// all objects will be initialized to null

	/**
 	 * Overloaded constructor - Overloaded methods have the
     * same name and return type as a previously defined method
     * with a different parameter-list.
 	 * takes one parameter
     * Constructs a book object and initialize all variables to their
     * default vaults, except the Book's bodyPages. BodyPages are set to
     * the pages passed to the constructor
	 * @param bodyPages  the contents of the book.
	 */
	public Book( String[] bodyPages ) { // overload the 
		this.bodyPages = bodyPages; // constructor 
	} 
	
	/**
 	 * Overloaded constructor - constructs a Book object
	 * takes four parameters
	 * @param preface text of the preface
	 * @param contents the table of contents
	 * @param pages the pages in the body of the book
	 * @param glossary the book's glossary
	 */
	public Book( String preface, String contents,
				 String[] pages, String glossary) { 
		this.preface = preface; 
		this.contents = contents; 
		this.bodyPages = pages; 
		this.glossary = glossary; 
	}

	/**
 	 * Accessors or getters return values of private data.
     * Return the preface.
     * @return the book's preface
	 */
	public String getPreface() { 
		return preface; 
	}

    /**
     * Return the pages
     * @return book's pages
     */
	public String[] getBodyPages() { 
		return bodyPages; 
	}

    /**
     * Return the glossary
     * @return the book's glossary
     */
	public String getGlossary() { 
		return glossary; 
	}

    /**
     * Mutators or Setters
     * The key word "this" reference to the current object instance.
     * Thus we have two variables in the method body, one variable is
     * a local variable (method scope) and on is an instance variable
     * (class scope).
     * Sets the book's preface
     * @param preface new preface
     */
    public void setPreface(String preface) {
        this.preface = preface;
    }

    /**
     * Sets the book's pages.
     * @param bodyPages  new body pages
     */
    public void setBodyPages(String[] bodyPages) {
        this.bodyPages = bodyPages;
    }

    /**
     * Sets the book's glossary.
     * @param glossary new glossary
     */
    public void setGlossary(String glossary) {
        this.glossary = glossary;
    }
} // Book object