Distinguish between a pointer and a reference. What does the term multiple inheritance mean and why does Java disallow it? How do you implement a class that inherits two interfaces, both with a...

Distinguish between a pointer and a reference. What does the term multiple inheritance mean and why does Java disallow it? How do you implement a class that inherits two interfaces, both with a default method with the same name? What are the advantages and disadvantages of a garbage collection facility in a programming language?