// *** Do you need to add an import statement here? ***

/**
 * Lab #4
 * CS 2334, Section 0??
 * DATE GOES HERE
 * <P>
 * This class models the Movie ADT.
 * </P>
 * @author Group #??
 * @version 1.0
 */
public class Movie implements Comparable // Q. #3 Something has to be 
                                         // added to the end of this 
                                         // class declaration.
{
	/** The title of the Movie represented by this class. */
	private String title;
	/** The release date of the movie. */
	private int year;
   
	/**
	 * This is the default constructor for the class Movie.
	 */   
	public Movie() 
	{
		year = 0;
		title = "";
	}
   
	/**
	 * This is the constructor for the class Movie. 
	 * It instantiates the class with user supplied values.
	 * <P>
	 * @param             title     The title of the movie.
	 * @param             year      The release date of the movie.
	 */   
	public Movie(String title, int year) 
	{
		this.title = new String( title );
		this.year = year;
	}
   
	/**
	 * Returns the title of the movie.
	 * <P>
	 * @return            The title of the movie as a string.
	 */      
	public String getTitle()
	{
		return title;
	}

	/**
	 * Returns the year of the movie.
	 * <P>
	 * @return            The year of the movie as a int.
	 */      
	public int getYear()
	{
		return year;
	}

   /**
    * This method returns the attributes of this movie as 
    * a single string.
    * </P>
    * @return            String representing the 
    *                    contents of this object.
    */
   public String toString()
   {
      return new String( "Title:  " + title + "\n" +
                         "Year:    " + year + "\n");
   }
    
   /**
    * This method compares an instance of Movie with 
    * this instance of Movie to see if they are equal.
    * <P>
    * Algorithm:<br>
    * Compare the title of the movies.  If it is the same, 
    * then compare the year of the movies.
    * </P>
    * @param             obj       The object we are comparing 
    *                              this instance of Movie with.
    * @return            Returns true if the two instances are 
    *                    equal, false otherwise.
    */   
   public boolean equals( Object obj )
   {
      if( (obj instanceof Movie) == false )
      {
    	  return false;
      }
      
      Movie other = (Movie)obj;

      // First compare the title of the movies.
      if( title.equals(other.title) == false)
      {
    	  return false;
      }

      // If the title is the same, handle the year.
      return year == other.getYear(); // Why does this work?
   }
   
   /**
    * This method compares an instance of Movie with 
    * this instance of Movie to determine their relationship.
    * <P>
    * Algorithm:<br>
    * Compare the title of the movies.  If it is the same, 
    * then compare the year of the movies.
    * </P>
    * @param             other      The object we are comparing
    *                               this instanceof Movie with.
    * @return            Returns negative integer if this object is less then obj,
    *                    zero if the this object is equal to obj,
    *                    positive integer if this object is greater than obj.
    */    
   public int compareTo( Object obj )
   {
      Movie other = (Movie)obj;

      // First compare the title of the movies
      if( title.compareTo( other.getTitle() ) != 0 ) 
      {
    	  return title.compareTo( other.getTitle() );
      }

	  // If the title is the same, handle the year.
	  return year - other.getYear(); //Why does this work??
      
  
      
   
   }
}