package backpack;

import java.util.ArrayList;

/**Class: Aquarium
* @author Rick Price
* @version 1.0
* Course : ITEC 2140 Fall 2017
* Written: November 16, 2014
*
*
* This class build the Aquarium class.  This class manages the aquarium used on test 2
*
* Purpose: Manage the list of fish created for test 2 extra credit
*/
public class Aquarium
{
	private ArrayList<Fish> allFish = new ArrayList<Fish>();

	/** Method: getFish
	 * @param int fishNum - the number of the fish the user wants to return
	 * @return Fish, the fish  requested by the user
	 */
	public Fish getFish(int fishNum)
	{
		try
		{
			if (fishNum > allFish.size())
			{
				System.out.println("Fish out of range. Returning the last fish.");
				return allFish.get(allFish.size()-1);
			}
			else if (fishNum < 0)
			{
				System.out.println("Fish number too small.  Returning the first fish");
				return allFish.get(0);
			}
			else
			{
				return allFish.get(fishNum);
			}
		}
		catch (IndexOutOfBoundsException iob)
		{
			System.out.println("No fish in the aquarium yet");
			return new Fish();
		}
	}

	/** Method: addFish
	 * @param Fish the fish the user wants to add
	 * @return none
	 */
	public void addFish(Fish newFish)
	{
		allFish.add(newFish);
	}

	/** Method: getNumFish
	 * @param none
	 * @return int the number of fish in the aquarium
	 */
	public int getNumFish()
	{
		return allFish.size();
	}

}