在java中为2d数组调用方法
我正在为一门编程课做一项作业,内容涉及骑士之旅的启发。目前,我有一种方法,可以用“棋盘”对象填充8x8棋盘阵列,这些对象知道棋盘上该空间的“可访问性”,以及该棋盘是否以前实际访问过。但是,当我创建8x8阵列并尝试调用此阵列的“填充”方法时,我收到一个错误,告诉我所使用的包中不存在该阵列。。。我做错了什么?它不应该像声明数组和调用方法那样简单吗
Board [][] chessboard = new Board [8][8];
chessboard.fill();
还是我的语法错了?这里是我的代码,用于创建线路板对象、可访问性矩阵,然后将这些可访问性值复制到8x8阵列上的每个线路板对象,以供参考。谢谢
public class Board {
/*
* Initialize array that emulates chessboard. Will be 8x8, each space will
* contain the number of squares from which that space can be reached. The
* knight will start at a new space each tour and choose each move based on
* the "accessability" of each square within its "move pool". The knight
* will move to the square with least accesibility each time. When the
* Knight is moved to a square, this square will be marked as visited so
* that it cannot be visited again. Also, any space that could have been
* moved to but was not will have its accesability reduced by 1.
*/
private boolean visited;
private int accessValue;
private Board [][] chess = new Board[8][8];
public Board(int acessability, boolean beenVisited)
{
visited = beenVisited;
accessValue = acessability;
}
int [][] accessMatrix = {{2,3,4,4,4,4,3,2},
{ 3,4,6,6,6,6,4,3 },
{ 4,6,8,8,8,8,6,4 },
{ 4,6,8,8,8,8,6,4 },
{ 4,6,8,8,8,8,6,4 },
{ 4,6,8,8,8,8,6,4 },
{ 3,4,6,6,6,6,4,3 },
{ 2,3,4,4,4,4,3,2}};
public void fill()
{
for (int i = 0 ; i < accessMatrix.length ; i++)
{
chess[0][i].changeAccess(accessMatrix[0][i]);
}
for (int i = 0 ; i < accessMatrix.length ; i++)
{
chess[1][i].changeAccess(accessMatrix[1][i]);
}
for (int i = 0 ; i < accessMatrix.length ; i++)
{
chess[2][i].changeAccess(accessMatrix[2][i]);
}
for (int i = 0 ; i < accessMatrix.length ; i++)
{
chess[3][i].changeAccess(accessMatrix[3][i]);
}
for (int i = 0 ; i < accessMatrix.length ; i++)
{
chess[4][i].changeAccess(accessMatrix[4][i]);
}
for (int i = 0 ; i < accessMatrix.length ; i++)
{
chess[5][i].changeAccess(accessMatrix[5][i]);
}
for (int i = 0 ; i < accessMatrix.length ; i++)
{
chess[6][i].changeAccess(accessMatrix[6][i]);
}
for (int i = 0 ; i < accessMatrix.length ; i++)
{
chess[7][i].changeAccess(accessMatrix[7][i]);
}
}
public int getAccess()
{
return accessValue;
}
public int changeAccess(int newAccess)
{
int accessNew;
accessNew = newAccess;
return accessNew;
}
# 1 楼答案
在此代码中:
a
Board[8][8]
的类型是Board[][]
因此,应该这样编写,以编译:
(然后您必须在数组中创建每个Board()对象,我将此作为练习留给您)
在此代码中:
您正在调用Board的方法。只能在线路板对象上执行此操作,而不能在阵列上执行此操作。如果要对阵列中的每个板对象调用此方法,必须执行以下操作:
但我觉得还有更多,因为有一些困惑。我认为,棋盘是一块棋盘,而不是一组棋盘。您可能想要创建一个棋盘并填充一次。正当然后简单地这样做: