MATLAB Object-Oriented Programming

end

methods

function obj = set.Material(obj,material)

if (strcmpi(material,'aluminum') ||...

strcmpi(material,'stainless steel') ||...

strcmpi(material,'carbon steel'))

obj.Material = material;

else

error('Invalid Material')

end

end

end

end

When there is an attempt to set the Material property, MATLAB calls the

set.Material method before setting the property value.

If the value matches the acceptable values, the function set the property to that value.

The code within set method can access the property directly to avoid calling the property

set method recursively.

For example:

td = TensileData;

td.Material = 'brass';

Error using TensileData/set.Material

Invalid Material

Simplifying the Interface with a Constructor

Simplify the interface to the TensileData class by adding a constructor that:

• Enables you to pass the data as arguments to the constructor


• Assigns values to properties

The constructor is a method having the same name as the class.

methods

function td = TensileData(material,samplenum,stress,strain)

if nargin > 0

td.Material = material;

td.SampleNumber = samplenum;

3 MATLAB Classes Overview