CS 150 - Intro to Programming - Fall 2001

Programming Project 4 - 15 points

Due: Thursday, November1 by 2:30pm

Write a C++ program that reads loan data from a file and prints a report that compares the cost of a 30 year loan to the cost of a 15 year loan. See sample dialog / output below.(note output sent to screen and file). User input in bold.

Enter input file name:  loan.dat
Enter output file name: output.txt

 idNum      amount     rate       15 years              30 years
----------------------------------------------------------------------
 123456  100000.00     6.50    871.11   156799.33    632.07   227544.49
 123456  100000.00     7.00    898.83   161789.09    665.30   239508.90
 123456  100000.00     7.50    927.01   166862.22    699.21   251717.22
 654566  670000.00     6.00   5653.84  1017691.33   4016.99  1446115.87
 654566  670000.00     7.00   6022.15  1083986.89   4457.53  1604709.62
 987345  309666.00     7.50   2870.64   516715.58   2165.23   779482.66
 123987  132000.00     8.00   1261.46   227062.94    968.57   348684.93
 256389  555332.00     6.50   4837.54   870756.83   3510.08  1263627.36

//***********************  Sample loan.dat file  ***********************
123456 100000 6.50
123456 100000 7.00
123456 100000 7.50
654566 670000 6.0
654566 670000 7.0
987345 309666 7.50
123987 132000 8.00
256389 555332 6.5

//output file should look like screen output

• Input must come from a file. Output to file and screen.
• Your program must define at least one function that is called with a file stream as an argument. Recall that streams must be passed by reference.
• Output decimal values to 2 decimal points
• Format output to line up in columns
• Be sure to allow the user to enter the file names - get the program to work by "hard coding" the file name to start.
• Create your own test files to verify that your program works as required. You can do this in CodeWarrior by selecting New from the file menu and saving the file in your project folder. Your instructor will have test files of his own, but you will not know what they contain (except for the above example).
• Add only a few lines to your source code at a time. Then compile and run it to make sure that new errors have not been introduced.
• make sure to include pre and post conditions, comments, and a comment header for each function.

What to turn in:

Paper copies to be turned in:

yourLastNameP4.cpp

Files to be Turned In to the drop box by the due date shown above:

yourLastNameP4.cpp