QUESTION 1

1. Each class must be declared in its own .java file

   True or False?

QUESTION 2

1. The keyword this must always be explicitly used when referring to an object's instance variables and methods from within one of its non-static methods.

   True or False?

QUESTION 3

1. When used in a class' main method the this keyword references the object representing the class itself.

   True or False?

QUESTION 4

1. Accessor methods that test whether a condition is true or false are often called predicate methods.

   True or False?

QUESTION 5

1. A class that holds references to objects of other classes as members demonstrates composition (a has-a relationship).

   True or False?

QUESTION 6

1. The following code creates a new instance of the Pixel enum and assigns it to myPixel:

   enum Pixel {RED, GREEN, BLUE}

   // ...

   Pixel myPixel = new Pixel();

   True or False?

QUESTION 7

What does the following code display?

enum Pixel {RED, GREEN, BLUE}

// ...

public static void main(String args[]) {

for (Pixel px : Pixel.values()) {

System.out.print(px);

}

}

QUESTION 8

1. A program might be terminated before the JVM's garbage collector has been executed.

   True or False?

QUESTION 9

1. The following import statement allows the class that contains it to access all static members of the java.lang.Math class by their unqualified names (e.g.: double piVal = PI;)

   import static java.lang.Math.*;

   True or False?

QUESTION 10

1. Variables with constant values (those that cannot be modified once initialized) are declared with the keyword ______.