USING JAVA, examine the partially implemented ElevensBoard.java file found below. Does the ElevensBoard class contain all the state and behavior necessary to play the game? Explain.

import java.util.List; import java.util.ArrayList;

/** * The ElevensBoard class represents the board in a game of Elevens. */ public class ElevensBoard extends Board {

/** * The size (number of cards) on the board. */ private static final int BOARD_SIZE = 9;

/** * The ranks of the cards for this game to be sent to the deck. */ private static final String[] RANKS = {"ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "jack", "queen", "king"};

/** * The suits of the cards for this game to be sent to the deck. */ private static final String[] SUITS = {"spades", "hearts", "diamonds", "clubs"};

/** * The values of the cards for this game to be sent to the deck. */ private static final int[] POINT_VALUES = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 0, 0, 0};

/** * Flag used to control debugging print statements. */ private static final boolean I_AM_DEBUGGING = false;

/** * Creates a new ElevensBoard instance. */ public ElevensBoard() { super(BOARD_SIZE, RANKS, SUITS, POINT_VALUES); }

/** * Determines if the selected cards form a valid group for removal. * In Elevens, the legal groups are (1) a pair of non-face cards * whose values add to 11, and (2) a group of three cards consisting of * a jack, a queen, and a king in some order. * @param selectedCards the list of the indices of the selected cards. * @return true if the selected cards form a valid group for removal; * false otherwise. */ @Override public boolean isLegal(List selectedCards) { /* *** TO BE IMPLEMENTED IN ACTIVITY 9 *** */ }

/** * Determine if there are any legal plays left on the board. * In Elevens, there is a legal play if the board contains * (1) a pair of non-face cards whose values add to 11, or (2) a group * of three cards consisting of a jack, a queen, and a king in some order. * @return true if there is a legal play left on the board; * false otherwise. */ @Override public boolean anotherPlayIsPossible() { /* *** TO BE IMPLEMENTED IN ACTIVITY 9 *** */ }

/** * Check for an 11-pair in the selected cards. * @param selectedCards selects a subset of this board. It is list * of indexes into this board that are searched * to find an 11-pair. * @return true if the board entries in selectedCards * contain an 11-pair; false otherwise. */ private boolean containsPairSum11(List selectedCards) { /* *** TO BE IMPLEMENTED IN ACTIVITY 9 *** */ }

/** * Check for a JQK in the selected cards. * @param selectedCards selects a subset of this board. It is list * of indexes into this board that are searched * to find a JQK group. * @return true if the board entries in selectedCards * include a jack, a queen, and a king; false otherwise. */ private boolean containsJQK(List selectedCards) { /* *** TO BE IMPLEMENTED IN ACTIVITY 9 *** */ } }