07 Enumerations and Nested Classes

Question 1

It is a data type that contains a fixed set of constants.

Answer 1

Enumeration

Question 2

Keyword that is used to create an enumeration.

Answer 2

enum

Question 3

The list of values of enum are called?

Answer 3

enum constants

Question 4

What are the non-static built-in methods of the enum constants?

Answer 4

toString()
ordinal()
equals(
compareTo()

Question 5

Method that returns an integer that represents the constant’s position in the list of constants; the first position is 0.

Answer 5

ordinal()

Question 6

Method that returns true if its argument is equal to the calling object’s value.

Answer 6

equals(

Question 7

Method that returns a negative integer if the calling object’s ordinal value is less that that of the argument, 0 if they are the same, and otherwise positive.

Answer 7

compareTo()

Question 8

Method that return the name of the calling constant object.

Answer 8

toString()

Question 9

What are the two (2) useful static methods used with enumerations?

Answer 9

valueOf()
values()

Question 10

Method that accepts a string parameter and returns an enumeration constant.

Answer 10

valueOf()

Question 11

Method tat returns an array of the enumerated constants.

Answer 11

values()

Question 12

It is used to describe a data type for that allows only appropriate behaviors.

Answer 12

type-safe

Question 13

A class within another class is called?

Answer 13

Nested classes

Question 14

What are the four (4) types of nested classes?

Answer 14

Static member class
Non-static member class (inner class)
Local class
Anonymous class

Question 15

Type of class that has access to all static methods of the top-level class.

Answer 15

Static member class

Question 16

Type of class that requires an instance; it has access to all data and methods of the top-level class.

Answer 16

Non-static member class (inner class)

Question 17

Type of class that is define within a method body.

Answer 17

Local class

Question 18

Type of class that is a special case of a local class that has not identifier

Answer 18

Anonymous class