Contents • Inheritance • Interfaces • Delegates • Exceptions • Namespaces and Assemblies • Attributes • Threads • XML

Comments Syntax class A { // base class int a; public A() {...} public void F() {...} } class B : A { // subclass (inherits from A, extends A) int b; public B() {...} public void G() {...} } • B inherits a and F(), it adds b and G() - constructors are not inherited - inherited methods can be overridden (see later) • Single inheritance: a class can only inherit from one base class, but it can implement multiple interfaces. • A class can only inherit from a class, not from a struct. • Structs cannot inherit from another type, but they can implement multiple interfaces. • A class without explicit base class inherits from object.