CS 111 - 9/25/14

Exam 1 - Next Thursday, 10/2/14, during Lecture

Format - 20 multiple choice questions
                 3 points each

          2 write code questions (turtle drawing)
                 20 points each

            Q. 21  (Writing inside of main)

            Q. 22  (Write a drawXXX method)

                 public static void drawXXX (

Topics for the exam:
 variables and types
 assignment statement
 arithmetic operators:  + - * / / %
    difference between floating point and integer division

     7.4 / 2.1    ==> floating point division
     7 / 2        ==> integer division
     7.0 / 2      ==> floating point division since at
                        least one operand is a floating
                        point value
  
 string concatenation operator: +

 System.out.println ("The value is: " + 10 + 15);

 Operator precedence, associativity

 while loops
 relational operators:  > < >= <= == !=

 methods
 parameters

 Turtles
   creation of the turtle
   creation of the world/picture

   common methods used by the Turtle objects

   comon methods used by the world/picture

   use of Color with the turtle pens

You can get 1% extra credit for your grade at the end of 
  the semester by writing a multiple question in
  the proper discussion area in blackboard


Next Topic Item

  Pictures: Chapters 4, 5, 6

   Pictures
       Pixels (Picture Elements)
           3 Colors are contained at each pixel
           red
           green 
           blue
              Each color uses an integer value to
              specify the intensity of that color

                 the value for the intensity range
                 from 0 to 255

                   An 8 bit value (1 byte) can 
                     represent 256 different values