Understanding Data Types, Abstraction and Encapsulation in Object-Oriented Programming

Value Types vs. Reference Types

Data types can be defined as either Value Types (VT) or Reference Types (RT). Which of the following is true? a.User defined classes are VT while strings are RT b.Strings are VT while integers are RT c.Integers are VT while user defined classes are RT d.Strings are VT while user defined classes are RT 4.Abstraction implies determining the class model during phase, and encapsulation means determining the class model during ___________ phase. a.designing, planning b.planning, designing c.constructing, testing d.testing, designing 5.User defined exceptions are ___________. a.thrown by the Try block b.thrown and caught by the Catch block c.eventually handled in the Finally block d.not thrown by Try/Catch/Finally bloc