MATLAB BUILDER JA 2 Betriebsanweisung PDF herunterladen (Seite 120)

4 Using MWArra y Classes

The prototype for the numberOfElements method is as follows:

public int numberOfElements()

Input Parameters

None

Example — Getting the Number of MWArray Elements

Display the number of elements in array object A:

System.out.println("Matrix A has " + A.numberOfElements() +

" elements");

When run, the example displays this output:

Matrix A has 18 elements

Methods to Get and Set Data in the MWArray

Use these methods to get and set v alues in an object of class MWArray or any o f

its child classes.

Method Description

“get” on page 4-45 Returns the element at the specified o ne-based

offset or index array as an

Object.

“getData” on page

4-46

Returns a one-dimensional array containing a copy

of the data in the underlying MATLAB array. The

array is in column-wise order.

“set” on page 4-47 Replaces the element at the s pecified o ne -based

offset, or index array, in this array with the s pecified

element.

“toArray” on page

4-48

Returns an array containing a copy of the data in

the underlying MATLAB array. The returned array

has the same dimensionality as the MATLAB array.

4-44

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MATLAB BUILDER JA 2 Betriebsanweisung Seite 120