Development of the Tutorial examples

• Example 1-Implementing a simple class with one method
  Prints a default message when the "sayHello" method is invoked on an object of the "Hello" class.

• Example 2-Adding an attribute to the Hello class
  Defines a "msg" attribute for the "sayHello" method to use. The client program "sets" a message; then the "sayHello" method "gets" the message and prints it. (There is no defined message when an object of the "Hello" class is first created.)

• Example 3- Overriding an inherited method
  Overrides the SOMobjects method somPrintSelf so that invoking this method on an object of the "Hello" class will not only display the class name and the object's location, but will also include the object's message attribute.

• Example 4-Initializing a SOM object.
  Overrides the default initialization method, somDefaultInit, to illustrate how an object's instance variables can be initialized when the object is created.

• Example 5-Using multiple inheritance
  Extends the "Hello" class to provide it with multiple inheritance (from the "Disk;" and "Printer" classes.) The "Hello" interface defines an enum and an "output" attribute that takes its value from the enum (either "screen," "printer," or "disk"). The client program "sets" the form of "output" before invoking the "sayHello" method to send a "msg"(defined as in Example 4).