CS 111 - Program Design I

Spring 2014

1. A
2. D
3. C
4. C
5. D
6. B
7. D
8. B
9. B
10. C
11. C
12. D
13. D
14. B
15. D
16. B
17. A
18. A
19. A
20. E
21. 
    public static void main (String[] args)
    {
    System.out.println("Begin Java Exection");
    System.out.println("");
    
    // step 1: create our world
    World w; // created the variable
    w = new World (); // allocated memory space for the object
    
    // step 2: create a turtle to live on the world
    Turtle t;
    t = new Turtle (w);
    t.setPenWidth(5);
    t.setPenColor(Color.BLUE);
    
    //Step 3: do something with the turtle
    int i = 0;
    while ( i < 4 )
    {
    t.forward (50);
    t.turn (90);
    i = i + 1;
    }
    
    // move to a different loction
    t.penUp ();
    t.forward (75);
    t.penDown ();
    
    // draw another square
    t.setPenColor (Color.RED);
    i = 0;
    while ( i < 4 )
    {
    t.forward (50);
    t.turn (90);
    i = i + 1;
    }
    
    // step Last: display/show the world
    w.show();
    
    System.out.println("");
    System.out.println("End Java Exection");
    }
22. 
    public static void drawStar ( Turtle tParam , int length , Color c )
    {
    int index;
    int numSides = 15;
    
    Color originalColor = tParam.getPenColor();
    tParam.setPenColor (c);
    
    index = 1;
    while ( index <= numSides)
    {
    tParam.forward (length);
    tParam.turn (720 / numSides);
    index = index + 1;
    }