英文:
How do you set up grid tables in Java
问题
在一个网格中，比如说是500乘500的，我需要知道特定方格的值。答案可能是是或者否。是否有东西存在。可以将其想象成一张方格纸；方格是否被涂色了。
如何在Java中设置这个表格？一个例子是；我想要知道在位置，x=400，y=400，这个方格是否被占据。
我对如何实现感到困惑。是不是可以使用数组来实现？
如果可以的话，请为我展示一个如何声明这个表格的例子，如何从这个表格中读取数据以及如何向这个表格中写入数据。
感谢你的帮助。
英文:
I need a hint, a big hint.
In a grid, say 500 by 500, I need to know the value of that square. The answer would be yes or no. Is something there or not. Think of it as piece of graph paper; has the square been colored in, or not?
How would I set up this table up in Java? An example would be; I want to see if at location, x=400, y=400; is this square occupied or not.
I am just confused by how that’s done. Is that what arrays are used for?
If you would please include an example of how I would declare this table, how I would read from this table and how I would write to this table.
Thank you for helping out.
答案1
得分: 0
你可以使用多维数组来存储表的行和列。然后，您可以相应地插入数据，并使用索引检查值是true还是false。这是一个链接。https://www.geeksforgeeks.org/multidimensional-arrays-in-java/
如果您创建一个（多维数组），然后将其打印到屏幕上，这将是有意义的。然后，您可以填充它并通过索引检查值。例如，[x][y]返回true。
英文:
You can use a multi-dimensional array to hold the rows and columns of a table. Then you can insert data accordingly and check whether a value is true or false using indexes. Here is a link. https://www.geeksforgeeks.org/multidimensional-arrays-in-java/
it will make sense if you make one(multidimensional array) then print it to your screen. then you can populate it and check for values by the indexes. example [x][y] returns true
专注分享java语言的经验与见解，让所有开发者获益！
评论