Multiple Choice

1. What is the actual content of the variable generator?

    Random generator = new Random();

   • null

   • An instance of the class Random

   • A reference to the class Random

   • A reference to an instance of the class Random

2. How do we call the properties that objects have?

   • Actions

   • Attributes

   • Classes

   • Behaviors

3. What is the most correct definition of an object oriented application?

   • A collection of instances where references to objects are kept

   • An application that makes use of classes

   • An application that does not make use of primitive datatypes

   • A collection of objects that communicate by sending messages to each other

4. What is stored in the variable hello?

   

   • A String object

   • A reference to an object of the class String

   • The text "Hello World"

   • An instance of the class String

5. What are the correct names of the different parts of the following statement.

   

   • Option A

     1 = variable name
     2 = type
     3 = assignment operator
     4 = class instance
     5 = terminator

   • Option B

     1 = type
     2 = variable name
     3 = assignment operator
     4 = class instance
     5 = terminator

   • Option C

     1 = type
     2 = class instance
     3 = assignment operator
     4 = variable name
     5 = terminator

   • Option D

     1 = class instance
     2 = variable name
     3 = assignment operator
     4 = type
     5 = terminator