Eclipse中的Connect4Java

我被指派在eclipse中使用java构建一个connect4游戏，我得到了构建该游戏所涉及的大多数类和方法，但我在理解静态主要部分时遇到了问题。我在理解如何初始化它时总是遇到一些问题。下面是所有涉及的课程。任何帮助都会很好

/**
 * This class represents a board for Connect 4. Please method headers as is.
 * 
 * @author
 * 
 */

public class Board {

    private LocationState board[][];
    private int noCols, noRows;

    /**
     * 
     * This constructor creates and initialises the board.
     * 
     * @param col   the number of columns in the board
     * @param row   the number of rows in the board
     * @see LocationState
     */
    public Board(int col, int row) {

        board = new LocationState[col][row];
        noCols = col;
        noRows = row;
        clear();

    }

    /**
     * This method clears the board by setting each element to
     * LocationState.EMPTY
     * 
     * @return Nothing
     */
    public void clear() {

        for (int i = 0; i < board.length; i++)
            for (int j = 0; j < board[0].length; j++)
                board[i][j] = LocationState.EMPTY;

    }
    /**
     * This method gets the location state (i.e. colour) at a particular
     * location
     * 
     * @param location
     * @return Location state as LocationState
     * @see Location
     * @see LocationState
     */
    public LocationState getLocationState(Location location) {
        return board[location.getX()][location.getY()];
    }

    /**
     * This method sets the location state (i.e. colour) at a particular
     * location
     * 
     * @param location
     * @return Nothing
     * @see Location
     * @see LocationState
     */
    public boolean setLocationState(Location location, LocationState state) {
        if (location.getX() < getNoCols() && location.getY() < getNoRows()) {
            board[location.getX()][location.getY()] = state;
            return true;
        }
        return false;
    }

    public String toString() {
        String s = "";
        for (int i = 0; i < noRows; i++) {
            for (int j = 0; j < noCols; j++)
                s += (board[j][i] + "\t");
            s += "\n";
        }

        return s;
    }

    /**
     * Gets the number of columns on the board.
     * 
     * @return number of columns on board as an integer
     */
    public int getNoCols() {
        return noCols;
    }

    /**
     * Gets the number of rows on the board.
     * 
     * @return number of rows on board as an integer
     */
    public int getNoRows() {
        return noRows;
    }

}

/**
 * 
 * Example Computer Player.
 * CREATE YOUR OWN VERSION OF THIS, REPLACING THE NUMBER IN THE CLASS NAME 
 * WITH YOUR STUDENT NUMBER.
 * @author Frank
 *
 */
public class ComputerPlayer20059226 extends IPlayer {

    public ComputerPlayer20059226(LocationState playerState) {
        super(playerState);

    }

    @Override
    public int getMove(Board board) {

        //TODO
        return -1;

    }
}



/**
 * 
 * Class to manage the connect 5 game
 *
 */
public class Connect4 {

    private IPlayer human, computer;
    private Board board;
    private IPlayer currentPlayer;
    private int numTurns = 0;

    public Connect4(IPlayer human, IPlayer computer, Board board) {
        super();
        this.human = human;
        this.computer = computer;
        this.board = board;
        this.currentPlayer = human;

    }


    /**
     * Toggles current player 
     */
    public void nextPlayer() {

        if (currentPlayer == human) {
            currentPlayer = computer;

        } else {
            currentPlayer = human;

        }

    }

    /**
     * Checks if there's a winner
     * @param board to evaluate for winner 
     * @return boolean to detect winner
     */
    public boolean isWin(Board board) {

        //TODO
        return false;

    }

    /**
     * Checks for a draw
     * @return
     */
    public boolean isDraw() {
        if(numTurns == board.getNoCols() * board.getNoRows())
        {
            return true;

        }
        else return false;

    }

    /**
     * Method called to get next move from player
     * 
     * @return boolean indicating move take successfully
     */
    public boolean takeTurn() {

        int col = currentPlayer.getMove(board);

        for (int i = 0; i < board.getNoRows(); i++) {
            if (board.getLocationState(new Location(col, i)) == LocationState.EMPTY) {
                board.setLocationState(new Location(col, i),
                        currentPlayer.getPlayerState());
                numTurns++;
                return true;
            }
        }
        return false;
    }

    public Board getBoard() {
        return board;
    }

    /**
     * @param args
     */
    public static void main(String[] args) {
        Connect4 connect = new Connect4(human.YELLOW);
    }

}


**
 * 
 * Abstract class to represent a player in a Connect 4 game.
 * Extend this to create your player.
 * Dependent on LocationState and Board types
 * @author Frank
 *
 */
public abstract class IPlayer {

    private LocationState playerState;

    public IPlayer(LocationState playerState) {
        super();
        this.playerState = playerState;
    }



    /**
     * This method should return the next move for a Connect 4 game.
     * Assume columns go from 1 to 7. Move computed from board parameter 
     * using suitable algorithm.
     * @param board - Connect 4 board as type Board
     * @return column number for next turn as integer.
     */
    public abstract int getMove(Board board);





    /**
     * This method returns the location state (i.e. colour) associated
     * with the player.
     * @return playerState - colour of players piece as LocationState.
     */
    public LocationState getPlayerState() {
        return playerState;
    }




}



public class Location {

    private int x;
    private int y;




    public Location(int x, int y) {
        super();
        this.x = x;
        this.y = y;
    }
    public int getX() {
        return x;
    }
    public int getY() {
        return y;
    }

}

/**
 * Emum class to represent possible location states in a connect 4 board  
 * @author Frank
 *
 */
public enum LocationState {
    EMPTY, RED, YELLOW;
}

/**
*此类表示Connect 4的板。请按原样选择方法标题。
* 
*@作者
* 
*/
公共班级委员会{
私人场所州董事会[][]；
私人国际noCols，noRows；
/**
* 
*此构造函数创建并初始化电路板。
* 
*@param col板中的列数
*@param row板中的行数
*@见LocationState
*/
公共董事会（内部列，内部行）{
board=新位置状态[列][行]；
noCols=col；
noRows=行；
清除（）；
}
/**
*此方法通过将每个元素设置为
*LocationState.EMPTY
* 
*@一无所获
*/
公共空间清除（）{
对于（int i=0；ipublic static void main(String[] args) {
    IPlayer human = new HumanPlayer(); // <-- you have to create this class (assignment)
    IPlayer computer = new ComputerPlayer20059226();
    Board board = new Board(16, 16);
    Connect4 connect = new Connect4(human, computer, board);
    // do something with the objects        
}

public class HumanPlayer extends IPlayer {
    ...
}

public abstract class IPlayer { // <-- bad naming