Problem Specification

File I/O Big Project - Example Java Users!

1. Problem Description

Use generated ExampleJavaUsers.txt data file as datasource
Create a User class with the following properties:
- Id
- UserName
- UserPhoneNumber
- UserEmail
- CreatedDate
- UserStreetAddress
- UserCityName
- UserZipCode
Create a constructor for the User class that takes in all of the mentioned properties and sets them to the objects class variables
Open the file using a FileInputStream or a BufferedReader
Create an array (User[] users) with size 101 to hold all of the example users
Loop through the opened file with the Stream and append to the users array a new User with the incoming data from the Stream (stream.readLine())
- Note need to split the line by delimiter ‘,’ to get the properties of the User.
The loop through the users array and print out the users properties with a new line after each user
Loop through the users array again and filter users by Id greater than 50 (setting the user at index > 50 to null)
Create a new file called ‘filteredExampleJavaUsers.txt
Create a FileOutputStream
Loop through the users array and check whether the user is null
- If not null, write the user’s properties to the output file, adding a new line after the last property of the user
Verify that the new file is created.
Learning Outcome:
- Using generated data to look through, filter and create utility classes to work with data given for needed tasks
- Open and write to different files as well as working with File and String class methods

2. What to Turn In