Which of the following has data abstraction but not an abstract data type? C C++ Java C#

Data structures are defined as: What does the term "abstract data type" refer to? Could you elucidate your response with an example?

Object oriented programming: Write the name of all Operators that we can never be overloaded in C++.

I am studying c++ for a computer science course having difficulties understanding (in a chapter about inheritance and composition) Identifying Classes, Objects, and Operations as part of Object Oriented Design. Can someone please help explain these concepts to me?

Define the term Abstract data type.

What does ADT stand for in the context of Java? Active Data Type Another Data Type Abstract Data Type Application Data Types which answer please

C# OOP...Please use inheritance and polymorphism to the program. And hopefully use comments so I can identify which is which and make me understand the program. Thank you!

C++language

What are the advantages of using dictionaries over other data structures in specific programming scenarios?