User`s manual

5 Calling Java from MATLAB

5-18

frameClass = class(frame)

frameClass =

java.awt.Frame

Because this form of class also works on MATLAB objects, it does not, in itself,

tell you whether it is a Java class. To determine the type of class, use the

isjava function, which has the form

x = isjava(obj)

isjava

returns 1 if obj is Java, and 0 if it is not.

isjava(frame)

ans =

To find out whether or not an object is an instance of a specified class, use the

isa function, which has the form

x = isa(obj, 'class_name')

isa

returns 1 if obj is an instance of the class named ’class_name’, and 0 if it

is not. Note that

’class_name’ can be a MATLAB built-in or user-defined class,

as well as a Java class.

isa(frame, 'java.awt.Frame')

ans =