2D Javascript array
Simply put, is there a way to create a 2D javascript array using similar syntax to this? var newArray = [ [0, 1, 2], [3, 4, 5], [6, 7, 8] ] ...
2d-array
writing 2d arrays to output files - c++
I'm trying to write a 2d array into an output file, it's all working fine except in creating the .getline function to draw the array back out of the file. My issue is putting the string length. My current code for the line is; inputFile.getline(myArray, [10][10], '\n'); but it doesn't like having the string length in square brackets it...
2d array error c++
I'm trying to run a c++ 2d array (pretty simple file) and it works but an error (at least I think it's an error) appears on the end. The code for the array is; int myArray[10][10]; for (int i = 0; i <= 9; ++i){ for (int t = 0; t <=9; ++t){ myArray[i][t] = i+t; //This will give each element a value } } for (int i = 0; i <= 9; +...
C++ 2D Arrays of an Object Constructor
In my Dev C++, I am trying to create a 2D Array class that acts like a Grid. But one of the problem is I am unsure what do for the constructor. When I try to compile, I get the following errors: In constructor 'Grid::Grid(int,int)': 'sqaures' is not a type 'yPos' cannot appear in a constant-expression [Build Error] [grid.o] Error 1 Her...
C++ Inserting 2D array Object into another 2D array Object
In using Dev C++, I a m trying to insert a smaller 2D array object into a larger 2D array object. While attempting to achieve that, I came into compilers errors which I do not know how to solve. I attempt to insert the smaller Object by making it returning the array's name. Then I attempt to change the values inside the large array with...
C++ 2DArray Objects; Pointers and Array Problems
This problem is from a solved problem in my old question, which is from: http://stackoverflow.com/questions/394763/c-inserting-2d-array-object-into-another-2d-array-object But also created a new problem for me. Please read the question and the solution in the link to understand my problem. The solution in the previous question was to ma...
What data structure is most suitable for implementing a 2-D array in Java?
I want to implement a 2-D array kind of a thing. What data structure will be most suitable for this? An array or some other data-structure will do. If there is any other data structure which will satisfy my requirement, then please tell me. I don't want to use an array because the 2-D array needs to be declared early in the program but...
Implementing a matrix, which is more efficient - using an Array of Arrays (2D) or a 1D array?
Hey everyone, When implementing a Matrix construct using arrays, which would be more efficient? Using a 1D array, or an array of arrays (2D)? I would think a 2D is more efficient as you already have the X and Y coordinates of an element, where in a 1D implementation you have to calculate the index. Any thoughts? Thank you Edit: it ...
2d arrays, input files... Error: empty String (?)
This is my assignment: link Here are my questions: How can I fix this error: Exception in thread "main" java.lang.NumberFormatException: empty String at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1012) at java.lang.Double.parseDouble(Double.java:527) at extracredit.Main.read...
Perl - How to access and array element that's held within another array
Heylo again, I've been trying to make my program somewhat easier to maintain. I have an array which I declare: my @pizza = ($p1 = "Pizza One", $p2 = "Pizza Two" ); I then go ahead and put this @Pizza array in another array, like so: my @food = (\@pizza); When I attempt to access either $p1 or $p2 via the @food property I get a val...
How to copy a row of values from a 2D array into a 1D array?
We have the following object int [,] oGridCells; which is only used with a fixed first index int iIndex = 5; for (int iLoop = 0; iLoop < iUpperBound; iLoop++) { //Get the value from the 2D array iValue = oGridCells[iIndex, iLoop]; //Do something with iValue } Is there a way in .NET to convert the values at a fixed first inde...
PHP: Session 2-Dimensional Array - Track Viewed Products
I'm trying to create an array to display the last 5 products a customer has viewed. The array is a 2 dimensional array like below... $RView= array( array( ID => "1001", RefCode => "Ref_01", Name => "Name_01" ), ... array( ID => "1005", RefCode => "Ref_05", Name => "Name_05" ) ); The array values are retrieved from ...
Help need Allocatable Array in FORTRAN
Hi, All. I'm really having trouble with Allocatable array. I have to copy all information from a file into allocatable array. The file is like this: 3 3 5 2 1 4 0 3 is the number of points other six numbers shows points on the graph in (x, y) form. So (3,5), (2, 1), (4,0) are the points. But I have problem to make these number as...
Is there a Python module/recipe (not numpy) for 2d arrays for small games
Hi, I am writing some small games in Python with Pygame & Pyglet as hobby projects. A class for 2D array would be very handy. I use py2exe to send the games to relatives/friends and numpy is just too big and most of it's features are unnecessary for my requirements. Could you suggest a Python module/recipe I could use for this. -- C...
How to create a two dimensional array in javascript?
I have been reading online and some places say it isnt possible, some say it is and then give an example and others refute the example, etc. How do I declare a 2 dimensional array in js? (assuming its possible) How would I access its members? (myArray[0][1] or myArray[0,1] ? ) Thanks ...
Initializing 2D int array
Hello. I got this code from a c++ book, and I cannot figure out how the initialization works. From what I can see, there is an outer for loop cycling trough the rows, and the inner loop cycling trough the column. But its is the assignment of the values into the array that I do not understand. #include <iostream> using namespace std; i...
How to use a two-dimensional C array of Objective-C objects?
I have a two-dimensional C array of Objective-C objects. How do I access the members of those objects? id array[5][5]; array[0][0] = [[Ball alloc] init]; The Ball class has two members: int size; CGPoint point; How can I access size for the Ball object stored in array[0][0]? Please tell me how I can do this. Thanks in advance! ...
What are the differences between using int[][] and int[,]?
Coming from a perl background, I have always defined a 2D array using int[][]. I know you can use int[,] instead so what are the differences? ...
Problems deleting a 2D dynamic array in C++ (which is eventually store in a vector)
So I have this 2d dynamic array which content I want to free when I am done with it. However I keep running into a heap corruption after the destructor. The code works fine (of course with memory leaks) if I comment out the destructor. (Visual Studio 2005) FrameData::FrameData(int width, int height) { width_ = width; height_ = h...
How to get the 'diff' between arrays in Java
I am attempting to write some test cases for some classes that involve testing the equality of two dimensional arrays of data. Here is my first stab at it: double[][] expected = { {0, 104, 0}, {145.5, 0, 0}, {83, 0, 0} }; double[][] actual = someObject.getArray(); Now, I see that JUnit does not have an 'array...