CSC 120A Lab Assignment 5 - Fall 2004

Thursday, September 30, 2004

Exercises:

Your job for this lab is to write a program that prints out a check on the screen. Your program should ask the user to input the following pieces of data and then print out a nicely formatted check on the screen:

• Check number (an integer)
• Date (a string)
• Recipient (a string)
• Amount (a double)

To begin: Copy the lab5 folder from "M:\CLASSES\CS120\SECTION A" into your home directory. You should now write a new Check class in a file called "Check.java". The Check class should have a constructor that takes as parameters the four pieces of information above and stores them into fields of a Check object. Then, it should also have a print() method that prints out the formatted check on the screen.

I have already included some files in this folder to get you started. These files are:

• CheckDriver.java (and CheckDriver.class): a sample program with a main method that gets input, creates a Check object, and calls the print() method on the object.
• Check.class: my compiled solution for the Check class. You can use this to see how your program should work. When you create your own Check.java file and compile it, it will overwrite this file with your own solution.
• Keyboard.java (and Keyboard.class): a utility class to help get input from the user.
• MakeSpaces.class: another utility class that you can use to generate strings of spaces for formatting your check printout. This class has a method:
  • public static String spaces(int num)
  that generates a string containing num spaces. You might use this method using a statement like:
  • System.out.println(MakeSpaces.spaces(30) + "Date: " + date)

Notes

• You may want to run the Java from a DOS command prompt instead of from the SciTE text editor because the output font in SciTE might not line up the columns properly.
• Print your name at the upper left corner of the check and print a blank memo line and signature line at the bottom of the check.
• You will have to write a method (or several methods) to convert the numerical amount of the check into words. You should come up with a general algorithm to do so and then implement it in Java. You can assume that all check amounts will be less than or equal to 999999.99 dollars.
• Your check should print out using 75 columns on the screen. Notice how the check number, date, and amount are all aligned on the right side of the check in my solution. (You do not have to worry about keeping the spelled out amount of the check within 75 characters.) To achieve this, you will need to calculate how many spaces are necessary to get strings to be right-aligned and then use the MakeSpaces.spaces(n) method described above.

Sample Run

Items in bold are what the user types in.

> java CheckDriver
  Please enter check number: 489
Enter check date (mm/dd/yy): 9/30/2004
       Enter recipient name: Berry College
         Enter check amount: 4569.30


Nadeem Abdul Hamid                                                      489
600 Redmond Rd
Rome, GA 30165
                                                            Date: 9/30/2004

Pay to the
order of: Berry College                                            $4569.30
Four thousand five hundred sixty-nine dollars and 30/100 cents


Memo: _________________________     _______________________________________


    

Hand in

Hand in a printout of your Check.java file and also upload it to the VikingWeb. If we run out of time in lab, you may finish up over the weekend and turn it in class on Monday, October 4 but no later than that.

Last modified: Wed Nov 24 12:53:48 EST 2004