Summary of the lecture

1. Summary of the lecture • We introduced the instantiation dependency • This is a binary relationship (a relationship between two classes). • It is directional, from a source class to a target class • Only the definition of the source class is affected by the presence of the relationship (this is how we define the source class in a relationship in general) • Example is on next two slides of an instantiation dependency between classes A (source) and B (target)

2. Instantiation Dependency in UML

3. class A – the source class package pkg; public class A { public A() { new B(); } }

4. class B – the target class package pkg; public class B { public B() { } }