605.201 Module 10 Java I/O Assignment

There should be two separate “programs” (main()), one to read the text data file and write a reformatted

file to be read by the second program which will create the report to standard out. Note before the

report is displayed, a single line with “File: “ then the path of the input file for the report is displayed.

The first program is to create a data file (not the report) which provides a pre-processed view of the

data supplied to it either by striping off the unneeded fields or by stripping off the unneeded fields and

summing the data by state code. The numbers should not be formatted and no additional records

should be produced.

The second program should read the file produced by the first program and produce the report in the

format shown in the above image. This program should format the numbers and produce the file path

information and column headings.

The first program will have 3 run-time parameters, the data source file path, the destination file path,

and the number of records in the data file (13486) .

The second program will have 2 run-time parameters, the input file path and the number of records.

Features and Restrictions:

This assignment is an individual effort. Collaboration with other students on design approaches,

implementation techniques, etc. as well as using the course's Discussion Board and other course

resources are encouraged but the design, implementation, and submitted files

must

be your own

creation.

A good reference for the Java 8 API is at:

http://docs.oracle.com/javase/8/docs/api/

The programs should use standard (SE) Java 8 code and compile without errors or warnings. It should

also run without errors or warnings when given valid input.

The programs should provide reasonable parameter validation (correct number of parameters,

reasonable values, etc.).

The programs should not use any Java collections (ArrayList, Map, Vector, etc.) except standard Java

arrays. Collections are introduced in a later module.

The file produced by the first program should not be deleted after running the report program.

The program's code should be reasonable formatted and commented as demonstrated so far in the

course.

Resources:

File: SmallAreaIncomePovertyEstData.txt – contains the small area poverty data. It is a standard 8-bit

readable text file.

File: SmallAreaIncomePovertyEstLayout.txt – contains information about the field layout of the

SmallAreaIncomePovertyEstData.txt file.

Submitted Files:

Please submit the following files in a single compressed zip file (.zip) using the following naming

convention: Assignment10_<JHUID><section number>. An example is: Assignment10_jdealjr182

•

Source files needed to recreate both of your programs

•

The compiled .class files for your programs and any needed custom classes

•

The supplied text files and any other additional files needed to run your programs

•

Short word processed file (.odt, .doc, .docx) explaining how to run your program.