This part of the programming project may be done individually or in groups of two. Keep in mind that you may not work with the same person on more than two of the programming projects. If you work with a teammate, hand in one copy of your code with both names on it. It is okay to get help from the TAs and/or the instructor if you get stuck, but you should try to do it on your own first.

The purpose of this assignment is to enhance the Histogram program from the Histogram Lab.

• Replace the seven variables representing the final location counters with a single collection of seven values. You will need to initialize the counters to 0, just as you did with the seven variables.

• Replace your series of if/else-if/else statements that increment the seven variables with a single statement that increments the appropriate element in the collection. To do this, you will need to develop an arithmetic expression that, given the final location of the object, will give you the correct index into the collection. For example,

  Final Location		Index
  -6		0
  -4		1
  ...		...
  0		3
  ...		...

• Replace the seven statements to plot the final locations with a single statement in a loop.

• Provide a more descriptive title for the histogram, such as "Distribution of final locations after six random moves." You may wish to create a variable to hold the title and then pass that to the DisplayableTable constructor to make the call to the constructor more readable.

• Add labels to the columns and rows of the histogram by placing a text cell in the appropriate location. Label the columns at consistent intervals (for example, every ten blocks) and label each row with the final location represented by that row (-6, -4, and so forth).

• Add space between your rows so that the histogram is easier to read.

• Import the ValidatedInputReader Class from the Aquarium Lab Series to prompt the user for the number of iterations to use for the simulation. To do this select Import from the File menu, click on File System and Next. Then click on Browse and find the directory that contains the class ValidatedInputReader, select it and click on Choose. The class can be found in the BlackBoxCode subdirectory of the Aquarium Lab Series Code directory. Click on the Directory name in the left panel and then check the ValidatedInputReader class in the right panel. Then click on the Finish button. This will bring the ValidatedInputReader class into your Histogram project.

  This class has a second static method getInteger that takes as its parameters the initial prompt string, the minimum number that is valid, the maximum number that is valid, a suggested value, and the clarification prompt. You may use the constant Integer.MAX_VALUE to represent the largest number that is acceptable. Once you have prompted the user for the number of iterations, change your program so that it uses this number to control the number of iterations that the simulation runs. Then remove the NUM_ITERATION constant. Test it with different numbers of iterations, including zero and one or more negative numbers.

• When you are done and your program works correctly, print out your updated HistogramLab.java file to turn in. Be sure that you have updated the class documentation at the top of the file and that your program conforms to the CS Program Style Guide and Documentation Standards for this class. The class documentation comments should describe the purpose and behavior of your main class from a user's perspective. Focus on what the program does, rather than how it does it. Include your name and the date as well as the names of anyone from whom you received help. Following the style and documentation standards is an important step towards writing well-structured and reusable programs. The Program Style Guide also describes the program grading scale used in this course.

  As usual, whenever you place files in the Temp folder, it is your responsibility under the Kalamazoo College honor code to remove them.