Interface Relationships
These objects have relationships and some inherit properties and methods from other objects.
These relationships are shown in Figure 16.1. Objects lower in the tree inherit from the objects above.
Figure 16.1 Inheritance relationships. The gray items belong to the extended interfaces.
In addition to this object-oriented approach using a hierarchy of inheritance, a more simplified way of working is possible. Simply make all manipulations via the Node Interface (see the next section).
Let's study the most important objects/interfaces in more detail.