Question

所以，我正在尝试创建一个包含称为节点的对象的板，但出于某种原因，当我尝试创建节点数组时，我在标题中得到错误但不明白为什么。从我学到的一切，

“public static Node [] [] board = new Node [11] [11];”

应该是有效的声明。我想做的就是制作一个11x11的数组。我稍后在循环中填充数组。

我在这里和其他地方寻求帮助，但找不到任何解决问题的方法。一些想法很接近，但问题仍然存在。任何帮助都会很棒。

public class Board {

    //creates the board
    public static Node[][] board = new Node[11][11];

    //create an empty node and place it in  every other location
    //like a checkered board.
    for(int i = 0; i < board.length; i++) {
        for (int j = 0; j< board[i].length; j+=2) {
            if(i%2 == 0) {//if it is an even row start at 0
                board[i][j] = new Node(null);
            }else if(j+1 < board[i].length){//if odd row and less than length, start at 1
                board[i][j+1] = new Node(false);
            }else{
            }
        }
    }


}

Answer 1

你需要一个方法或构造函数，我不相信Java会让你把语句放在类体中。

public class Board {

    // Creates the board
    public static Node[][] board = new Node[11][11];

    public Board() {
        // Create an empty node and place it in  every other location
        // like a checkered board.
        for(int i = 0; i < board.length; i++) {
            for (int j = 0; j< board[i].length; j+=2) {
                if(i%2 == 0) {
                    // Even row start at 0
                    board[i][j] = new Node(null);
                }
                else if(j+1 < board[i].length) {
                    // Odd row and less than length, start at 1
                    board[i][j+1] = new Node(false);
                }
            }
        }
    }
}

创建类型为object的2d数组时出错

1 个答案: