Merge branch 'master' of https://github.com/DjBushido/itcs4180.git
DjBushido
commit
fcbd74a5e4
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/*
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* Bradlee Speice, Brandon Rodenmayer
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* ITIS 4180
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* Homework 1
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* PartOne.java
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*/
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package edu.uncc.itcs4180;
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/* Assignment: Homework 1
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* File name: PartOne.java
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* Group:
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* Bradlee Speice
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* Brandon Rodenmayer
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*/
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import java.io.BufferedReader;
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import java.io.FileReader;
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import java.io.IOException;
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import java.util.*;
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public class PartOne {
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public class PartOne
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{
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public static void main(String[] args)
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{
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SortedSet<User> uniqueUsers = new TreeSet<User>(new UserComparator());
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//Add all new users to uniqueUsers assuming they are not old users
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String filePath = "userListNew.txt";
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//Using modified code provided in assignment instructions
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// Lets make sure the file path is not empty or null
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if (filePath == null || filePath.isEmpty())
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{
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System.out.println("Invalid File Path");
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return;
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}
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BufferedReader inputStream = null;
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//We need a try catch block so we can handle any potential IO errors
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try
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{
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//Try block so we can use <20>efinally<6C>f and close BufferedReader
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try
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{
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inputStream = new BufferedReader(new FileReader(filePath));
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String lineContent = null;
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//Loop will iterate over each line within the file.
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//It will stop when no new lines are found.
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while ((lineContent = inputStream.readLine()) != null)
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{
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//Add user to the list of users
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String[] resultingTokens = lineContent.split(",");
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User tempUser= new User(resultingTokens[0].trim(), resultingTokens[1].trim().charAt(0), resultingTokens[2].trim(), Integer.parseInt(resultingTokens[3].trim()));
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uniqueUsers.add(tempUser);
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}
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}
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//Make sure we close the buffered reader.
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finally
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{
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if (inputStream != null)
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inputStream.close();
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}
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}
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catch (IOException e)
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{
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e.printStackTrace();
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}
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//Remove all of the old users from uniqueUsers, leaving only new users
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filePath = "userListOld.txt";
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//Using modified code provided in assignment instructions
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// Lets make sure the file path is not empty or null
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if (filePath == null || filePath.isEmpty())
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{
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System.out.println("Invalid File Path");
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return;
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}
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inputStream = null;
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//We need a try catch block so we can handle any potential IO errors
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try
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{
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//Try block so we can use <20>efinally<6C>f and close BufferedReader
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try
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{
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inputStream = new BufferedReader(new FileReader(filePath));
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String lineContent = null;
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//Loop will iterate over each line within the file.
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//It will stop when no new lines are found.
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while ((lineContent = inputStream.readLine()) != null)
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{
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//Remove the user if they exist
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String[] resultingTokens = lineContent.split(",");
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User tempUser= new User(resultingTokens[0].trim(), resultingTokens[1].trim().charAt(0), resultingTokens[2].trim(), Integer.parseInt(resultingTokens[3].trim()));
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/*Print users as they are removed
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* if(uniqueUsers.remove(tempUser));
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* System.out.println("REMOVED USER: "+tempUser);
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*/
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uniqueUsers.remove(tempUser);
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}
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}
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//Make sure we close the buffered reader.
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finally
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{
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if (inputStream != null)
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inputStream.close();
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}
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}
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catch (IOException e)
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{
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e.printStackTrace();
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}
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//iterator to print out all users in uniqueUsers (Sorted by age)
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for (User user : uniqueUsers)
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{
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System.out.print(user.getFname()+ " ");
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System.out.print(user.getMinit()+ " ");
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System.out.print(user.getLname()+ " ");
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System.out.println(user.getAge());
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}
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}
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}
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class User
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{
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private String fname;
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private char minit;
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private String lname;
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private int age;
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public User()
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{
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fname = "Default";
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minit = 'D';
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lname = "User";
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age = 0;
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}
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public User(String fname, char minit, String lname, int age)
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{
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this.fname = fname;
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this.minit = minit;
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this.lname = lname;
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this.age = age;
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}
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public String getFname()
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{
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return this.fname;
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}
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public char getMinit()
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{
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return this.minit;
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}
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public String getLname()
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{
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return this.lname;
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}
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public int getAge()
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{
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return this.age;
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}
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public boolean equals(User user)
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{
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if(this.fname.equals(user.getFname()) && this.minit==user.getMinit() && this.lname.equals(user.getLname()) && this.age==user.getAge())
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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public String toString()
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{
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String userString = fname+" "+minit+" "+lname+" "+age;
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return userString;
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}
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}
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class UserComparator implements Comparator<User>
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{
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public int compare(User a, User b)
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{
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if(a.getFname().equals(b.getFname()) && a.getMinit()==b.getMinit() && a.getLname().equals(b.getLname()) && a.getAge()==b.getAge())
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{
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return 0;
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}
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else
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{
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if(a.getAge()>b.getAge())
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{
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return 1;
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}
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else
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{
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return -1;
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}
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}
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}
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}
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