What are the different types of inheritance present in Delphi?

1.  Specialization inheritance: this is the type of inheritance in which the child class is the advanced version of the parent’s class. 
2. Class inheritance: provides a way for the child class to include the features and complete properties of the parent’s class. It is used to extend the parent class and provide the left out features and methods. 
3. Abstract inheritance: this is the method that provides other skeleton methods which is being implemented by the child class. 
4. Interface: this is the way by which the class implements all the skeleton methods by using the interface itself.