Programming

The display Method

MATLAB calls a method named display whenever an object is the result of a statement that is not terminated by a semicolon. For example, creating the variable a, which is a double, calls the MATLAB display method for doubles.

• a = 5
  a =
      5
  

You should define a display method so MATLAB can display values on the command line when referencing objects from your class. In many classes, display can simply print the variable name, and then use the char converter method to print the contents or value of the variable, since MATLAB displays output as strings. You must define the char method to convert the object's data to a character string.

Examples of display Methods

See the following sections for examples of display methods:

• The Polynom display Method
• The Asset display Method
• The Stock display Method
• The Portfolio display Method

Identifying Objects Outside the Class Directory

Accessing Object Data

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