Is there an error in the documentation for External Interfaces in MATLAB 7.0 (R14) with how MATLAB handles undefined methods?

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MathWorks Support Team 2009-6-27

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https://ww2.mathworks.cn/matlabcentral/answers/98263-is-there-an-error-in-the-documentation-for-external-interfaces-in-matlab-7-0-r14-with-how-matlab-h

I have a created a file foo.m on my MATLAB path. The contents of the file are below.

function foo(a)
disp(a)

When I execute the following command

   ja=java.lang.String('aaa');
ja.foo

I receive the following result

 a =
 aaa

The documentation states that MATLAB looks for built-in functions when a MATLAB command invokes a nonexistent method on a Java object.

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Answer 1

MathWorks Support Team 2009-6-27

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/98263-is-there-an-error-in-the-documentation-for-external-interfaces-in-matlab-7-0-r14-with-how-matlab-h#answer_107613

This change has been incorporated into the documentation in Release 14 Service Pack 3 (R14SP3). For previous releases, read below for any additional information:

This is an error within the documentation for MATLAB within the External Interfaces section. The documentation should read as follows:

If your MATLAB command invokes a nonexistent method on a Java object, MATLAB looks for a function with the same name. If MATLAB finds a function of that name, it attempts to invoke it. If MATLAB does not find a function with that name, it displays a message stating that it cannot find a method by that name for the class.