Question 17 (0.625 points)

Java fields are also known as:

Question 17 options:

	none of the above
	constructors
	instance variables
	constants
	accessors

Question 18 (0.625 points)

Which characteristics distinguish a constructor from other methods? (Select all that apply.)

Question 18 options:

	The same name as the class
	No return type
	No parameters
	A return type of void

Question 19 (0.625 points)

public class Dog { private int age; }

The lifetime of age is:

Question 19 options:

	the same as the lifetime of a Dog object to which it belongs
	the same as the lifetime of the Dog class
	the duration of the program
	not able to be determined
	not defined

Question 20 (0.625 points)

If an instance variable is declared as:

 private int age;

it will be set to a default value of:

Question 20 options:

	null
	blanks
	1
	0
	none of the above

Question 21 (0.625 points)

Consider this code with line numbers at left:

1 public class Something { 2 private int val; 3 4 public Something() { 5 val = 0; 6 } 7 8 public int getVal() { 9 return val; 10 } 11 }

What is lines 4-6?

Question 21 options:

	a class
	a constructor
	a method
	an object
	a field

Question 22 (0.625 points)

Consider this code with line numbers at left:

1 public class Product { 2 private int id; 3 4 public Product() { 5 id = 1; 6 } 7 8 public int getId() { 9 return id; 10 } 11 }

What is the name of the constructor shown?

Question 22 options:

	private
	Product
	getId
	public
	id

Question 23 (0.625 points)

Classes define types.

Question 23 options:

	True
	False

Question 24 (0.625 points)

____________ is the ability to ignore details of a problem and focus on the higher level of the problem.

Question 24 options:

	Concatenation
	Abstraction
	Overloading
	Debugging
	Initialization