Abstract classes differ from other classes in that you______. must not code any

Question

Abstract classes differ from other classes in that you______. must not code any methods within them must instantiate objects from them cannot instantiate objects from them cannot have data fields within them Abstract classes can contain_______. abstract methods nonabstract methods both of the above none of the above When you create a______ in Java, you create a variable name in which you can hold the memory address of an object. field pointer recommendation reference In object-oriented programming terminology, an unexpected or error condition is a(n)________. anomaly aberration deviation exception In object-oriented terminology, you______ a procedure that might not complete correctly try catch handle encapsulate A collection of data stored on a nonvolatile device in a computer system is______. a file an application volatile a type of binary file A complete list of the disk drive plus the hierarchy of directories in which a file resides is its______ directory folder delimiter path

Explanation / Answer

4.c.) the difference between abstract classes and classes is the we must not instantiate objects from them as the class itself is declared abstract.

5.a.) can contain abstract methods as declaration but not has no implementation.

6.b.) a pointer is used to give the address of the memory location holding an object.

7.d.) the unexpected error or condition in object oriented programming is known as an exception and to handle these exceptions there are exception handlers.

8.c.) handle the procedure if it does not work properly.

9.a.) a file is the collection of data stored in the computer system through a nonvolatile device.

10.d.) path is the omplete list of the disk drive and the hierarchy of directories in which a file resides.

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