Convert a coordinate system into a board for a game

I currently have code that prints out a coordinate system as shown below. The code asks the user to input dimensions and then prints out a coordinate system appropriately. The board below is a 5 x 5.

(0, 0) (1, 0) (2, 0) (3, 0) (4, 0) 

(0, 1) (1, 1) (2, 1) (3, 1) (4, 1) 

(0, 2) (1, 2) (2, 2) (3, 2) (4, 2) 

(0, 3) (1, 3) (2, 3) (3, 3) (4, 3) 

(0, 4) (1, 4) (2, 4) (3, 4) (4, 4) 

I was wondering if anyone could give me a hand as to how to convert this into a board that looks like this:

X O X O X 

O X O X O

X O X O X

O X O X 开发者_运维知识库O

X O X O X 

So far I've tried making a list of strings and appending it the the coordinate system but haven't quite got the desired outcome. if anyone has any hints they would be much appreciated.

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You could try checking if x+y is even, then printing the appropriate string. So, (1,1) would be X, and (1,4) would be O

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You could make a count. if count = 0 print X if count = 1 print O and set count back to 0

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I would make a BoardElement class, and a BoardElement[][]

class BoardElement {
    String value;
    BoardElement(String v) { value = v; }
    public String toString() { return value; }
}

class Board {
    BoardElement[][] board;
    Board(int x, int y) { board = new BoardElement[x][y]; }
    public String toString() {
        StringBuilder sb = new StringBuilder();
        for(int x = 0; x < board.length; x++) {
            for(int y = 0; y < board[0].length; y++) {
                sb.append(board[x][y]).append(" ");
            }
            sb.append(System.getProperty("line.separator"));
        }
        return sb.toString();
    }
    public void set(int x, int y, String v) { board[x][y].value = v; }
}

then to make your system you would go like this

public static void main(String[] args) {
    Board b = new Board(5,5);
    for(int x = 0; x < 5; x++) {
        for(int y = 0; y < 5; y++) {
            b.set(x,y,(x+y)%2==0?"X":"O");
        }
    }
    System.out.println(b);
}

Your first system was more like

public static void main(String[] args) {
    Board b = new Board(5,5);
    for(int x = 0; x < 5; x++) {
        for(int y = 0; y < 5; y++) {
            b.set(x,y,"(" + x + "," + y + ")");
        }
    }
    System.out.println(b);
}