MATLAB REAL-TIME WORKSHOP 7 - TARGET LANGUAGE COMPILER Uživatelský manuál stáhnout pdf (Strana 185)

100

101

Creating and Using Java Objects

5-15

Finding the Public Data Fields of an Object

To list the public fields that belong to a Java object, use the fieldnames

function, which takes either of these forms.

names = fieldnames(obj)

names = fieldnames(obj,'-full')

Calling fieldnames without '-full' returns the names of all the data fields

(including inherited) on the object. With the

'-full' qualifier, fieldnames

returns the full description of the data fields defined for the object, including

type, attributes, and inheritance information.

Suppose, for example, that you constructed a

Frame object with

frame = java.awt.Frame;

To obtain the full description of the data fields on frame, you could use the

command

fieldnames(frame,'-full')

Sample output from this command follows.

ans =

'static final int WIDTH