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4 Using MWArra y Classes

toString. This method returns a string representation of the array. The

toString method of the MWArray classoverridesthetoString method of

class

Object.

The prototype for the

toString method is as follows:

public java.lang.String toString()

Input Parameters

None

Example — Converting an MWArray to a String

Display the contents of MWArray object A:

System.out.println("A = " + A.toString());

When run, the example displays the contents of A:

A=123456

7 8 9101112

13 14 15 16 17 18

Methods to Use on Sparse MWArrays

Use these methods to return information on sparse arrays of type MWArray or

any of its child classes.

Method Description

“isSparse” on page

4-55

Tests whether the a rray is sparse.

“columnIndex” on page

4-56

Returns an array containing the column index of

each nonzero element in the underlying MATLAB

array.

“rowIndex” on page

4-57

Returns an array containing the row index of each

nonzero e lement in the underlying MATLAB array.

4-54

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MATLAB BUILDER JA 2 Guida Utente Pagina 130