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4 Using MWArra y Classes

Using MWCellArray Constructors

The MWCellArray class provides the following constructors:

Constructor Usage

MWCellArray()

Empty cell array.

MWCellArray(int[])

New cell array with specified dimensions. All

cells are initialized to empty.

MWCellArray(gint, int)

New cell matrix with specified number of rows

and columns.

Constructing a cell a rray is a two-step process. First, allocate the array using

one of the constructors in the previous table, then assign values to each cell

using one of the

set methods.

Constructing an MW CellArra y. For simple arrays, passing a Java array

directly is the most convenient approach. When you want to assign a more

complicated type to a cell (i.e., a complex array or another cell array), you

must create a temporary

MWArray for the input value. You should dispose of

any temporary arrays after assigning them to a cell.

This example creates and initializes a 2-by-2 cell array:

String x11 = "A String";

double[][] x12 = {{1.0, 2.0},

{3.0, 4.0}};

int[][] x21 = {{1, 2},

{3, 4}};

boolean[][] x22 = {{true, false},

{false, true}};

int[] index = {1, 1};

a.set(index, x11);

index[1] = 2;

a.set(index, x12);

index[0] = 2;

a.set(index, x22);

index[1] = 1;

a.set(index, x21);

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MATLAB BUILDER JA 2 Guía de usuario Pagina 108