Unit 5 Quiz

Question 1

An abstract method declaration can be private?

T or F

Answer 1

False

Question 2

______ numbers use digits that can be one of 16 values — 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E and F.

Answer 2

Hexadecimal

Question 3

What does the acronym OOP stand for?

Answer 3

Object Oriented Programming

Question 4

_______ Code is ugly inelegant code that provides a workaround for a problem.

Answer 4

Kludgy

Question 5

_______ is the ability for a particular method call to perform different operations at different times?

Answer 5

Polymorphism

Question 6

______ is what the JVM does in order to match up a polymorphic method call with a particular method?

Answer 6

Dynamic binding

Question 7

Which statement below would output: 123456?

String var1 = “123”

int var2 = 456;

a. System.out.println(var1+var2);
b. System.out.println(“123”+var2);
c. System.out.println(var1+456);
d. all of the above
e. none of the above

Answer 7

All of the above

Question 8

By definition, when a method overrids another method, the two methods must have the exact same signature.

T or F

Answer 8

True

Question 9

The ______ class is the ancestor of all other classes?

Answer 9

Object

Question 10

An abstract method declaration is required to be private, and the definitions of the method that appear in descendant classes are required to be private as well.

T or F

Answer 10

False