multidimensional-array

问题 Hey guys sorry i'm a noob at java but im trying to make something and i need a multidimensional array list. It must be implemented into the following code: public static void OpenFile() { ArrayList<ArrayList<String>> array = new ArrayList<ArrayList<String>>(); int retrival = chooser.showOpenDialog(null); if (retrival == JFileChooser.APPROVE_OPTION) { try (BufferedReader br = new BufferedReader(new FileReader( chooser.getSelectedFile()))) { String sCurrentLine; while ((sCurrentLine = br

问题 I have a two dimensional array that is holding the value of 5 cards. The first element of each of the 5 arrays represents the suit of the card, and the second element represents the card value. I want to sort the 2d array by the second element, and then by the first element while maintaining the sorted order of the second element (if that makes sense). For example all suits of ones will be lower on the sorted list than all suits of two. So for example, {{0,1},{2,1},{0,2}} should become {{0,1}

问题 I have a two dimensional array that is holding the value of 5 cards. The first element of each of the 5 arrays represents the suit of the card, and the second element represents the card value. I want to sort the 2d array by the second element, and then by the first element while maintaining the sorted order of the second element (if that makes sense). For example all suits of ones will be lower on the sorted list than all suits of two. So for example, {{0,1},{2,1},{0,2}} should become {{0,1}

问题 I am working on the following data structure, from which I am trying to create a ndarray contains all the data: instrument filter response ----------------------------------------------------- spire 250um array of response ... ... ... where the array of response is: linenumber wavelangth throughput ----------------------------------------------------- 0 1.894740e+06 0.000e+00 1 2.000000e+06 1.000e-02 2 2.026320e+06 3.799e-02 ... .... .... So, I hope I can turn the data to one ndarray, by

问题 Given a multi-dimensional array that you don't necessarily know the structure of; how would one search for a key by name and change or add to it's contents? The value of the key could be either a string or an array and the effects should be applied either way--I had looked at array_walk_recursive, but it ignores anything that contains another array... 回答1: Does this work? function arrayWalkFullRecursive(&$array, $callback, $userdata = NULL) { call_user_func($callback, $value, $key, $userdata)

问题 I want to replace string[,] 2D array public static readonly string[,] first = { {"2", " ", " ", " ", "1"}, {"2", " ", "4", "3", " "}, {" ", "2", " ", "1", " "}, {" ", "1", " ", "3", " "}, {"1", " ", " ", " ", " "} }; into int[,] array int X=-1; public static readonly int[,] second = { {2, X, X, X, 1}, {2, X, 4, 3, X}, {X, 2, X, 1, X}, {X, 1, X, 3, X}, {1, X, X, X, X} }; Is it possible to convert a string[,] array to an int[,] array? If yes, how can I convert the string[,] into int[,] ? Thank

问题 I have an indexed array with nested categories like this: array ( 0 => array ( 'name' => 'Furniture', 'id' => 'b3cdd1k', 'content' => array ( 0 => array ( 'name' => 'Tables', 'id' => 'nw24ga3', 'content' => array ( 0 => array ( 'name' => 'Wooden tables', 'id' => 'ba5lgaz', ), 1 => array ( 'name' => 'Glass tables', 'id' => 'rqt91gz', ), ), ), ), ), 1 => array ( 'name' => 'Lamps', 'id' => 'vb1a4nf', ), 2 => array ( 'name' => 'Doors', 'id' => 'a5l4gal', 'content' => array ( 0 => array ( 'name' =

问题 I'm trying to understand the differences between what people call matrices and what people call lists within lists. Are they the same in that, once created, you can do identical things to them (reference elements the same way within them, etc). Examples: Making lists within a list: ListsInLists = [[1,2],[3,4],[5,6]] Making a multidimensional array: np.random.rand(3,2) Stacking arrays to make a matrix: Array1 = [1,2,3,4] Array2 = [5,6,7,8] CompleteArray = vstack((Array1,Array2)) 回答1: A list of

问题 I have an array in the following format: Array ( [0] => Array ( [0] => a [1] => b [2] => c ) [1] => Array ( [0] => d [1] => e [2] => f ) [2] => Array ( [0] => 0 [1] => 0 [2] => 0 ) [3] => Array ( [0] => 100 [1] => 200 [2] => 300 ) ) The indices in the first array(outer), i.e. 0 is for name, 1 for type, 2 for error and 3 for size. I have to rearrange this array in the following format: Array ( [0] => Array ( [name] => a [type] => d [error] => 0 [size] => 100 ) [1] => Array ( [name] => b [type]

问题 I have an array in the following format: Array ( [0] => Array ( [0] => a [1] => b [2] => c ) [1] => Array ( [0] => d [1] => e [2] => f ) [2] => Array ( [0] => 0 [1] => 0 [2] => 0 ) [3] => Array ( [0] => 100 [1] => 200 [2] => 300 ) ) The indices in the first array(outer), i.e. 0 is for name, 1 for type, 2 for error and 3 for size. I have to rearrange this array in the following format: Array ( [0] => Array ( [name] => a [type] => d [error] => 0 [size] => 100 ) [1] => Array ( [name] => b [type]