MATLAB Programming

Example — Assets and Asset Subclasses
Example — Assets and Asset Subclasses
This example is divided into the following topics:
• “Inheritance Model for the Asset Class” on page 9-42
• “Asset Class Design” on page 9-42
• “Other Asset Methods” on page 9-43
• “The Asset Constructor Method” on page 9-43
• “The Asset get Method” on page 9-44
• “The Asset set Method” on page 9-45
• “The Asset subsref Method” on page 9-46
• “The Asset subsasgn Method” on page 9-47
• “The Asset display Method” on page 9-48
• “The Asset fieldcount Method” on page 9-49
• “Designing the Stock Class” on page 9-49
• “The Stock Constructor Method” on page 9-50
• “The Stock get Method” on page 9-52
• “The Stock set Method” on page 9-53
• “The Stock subsref Method” on page 9-54
• “The Stock subsasgn Method” on page 9-55
• “The Stock display Method” on page 9-57
As an example of simple inheritance, consider a general asset class that can
be used to represent any item that has monetary value. Some examples
of an asset are: stocks, bonds, savings accounts, and any other piece of
property. In designing this collection of classes, the asset class holds the
data that is common to all of the specialized asset subclasses. The individual
asset subclasses, such as the stock class, inherit the asset properties and
contribute additional properties. The subclasses are “kinds of” assets.
9-41