Document.java

import java.util.*;

/**
 * A very simple Document class that can be used to explore
 * issues related to accessibility/visibility
 *
 * @author  Prof. David Bernstein, James Madison University
 * @version 2.0
 * @Maricel Vicente
 */
public class Document
{
    // Note that the attributes are protected
    protected String       delimiters, text;


    /**
     * Explicit Value Constuctor
     *
     * @param text   The text of the document
     */
    public Document(String text)
    {
 this.text = text;
 delimiters = " ,.;:!?\t\n\r";
    }


    /**
     * Append additional text to the end of this Document
     *
     * @param addition   The text to append
     */
    public void append(String addition)
    {
 text = text + addition;
    }


    /**
     * Get a description of this Document that
     * includes a statistical summary
     *
     * @return  The description
     */
    public String getDescription()
    {
 int          count;
 String       result;

 count  = this.getWordCount();

 result = "This document has " + count;
 if (count == 1) result += " word ";
 else            result += " words ";

 count = this.getLineCount();
 result += "and " + count;
 if (count == 1) result += " line ";
 else            result += " lines ";

 return result;
    }




    /**
     * Get the text of this Document
     *
     * @return  The text
     */
    public String getText()
    {
 return text;
    }




    /**
     * Get the number of lines in this Document
     *
     * @return  The number of lines
     */
    public int getLineCount()
    {
 char               character;
 int                count, i;

 // Initialize the line counter
 count = 1;
 if (text.length() == 0) count = 0; // No words means no lines

 // Count the number of newline characters
 for (i=0; i < text.length(); i++) {

     character = text.charAt(i);
     if (character == '\n') count = count + 1;
 }

 return count;
    }





    /**
     * Get the number of words in this Document
     *
     * @return  The number of words
     */
    public int getWordCount()
    {
 int                count;
 StringTokenizer    tokenizer;

 tokenizer = new StringTokenizer(text, delimiters);
 
 count = tokenizer.countTokens();

 return count;
 
    }
    // Lab: Understanding Polymorphisism
    
    public boolean equals(Document other)
    {
      return this.text.equals(other.text);
    }
    
    public String toString()
    {
      return this.getText();
    }
    
}