/* * This file is the registration class for the Vehicle Rental System. * */

package model;

import java.util.Map; import utility.FileLoader;

/** * Represents User Sign-in Object. * * Methods of this class throw NullPointerException if required parameters are null. * */

public class Registration {

/** * User Storage File. */ public static final String USERFILE_NAME = "./resources/registeredusers.txt";

/** * The registered user list for signin. */ private final Map myUserList;

/** * Constructs a sigin/registration system. * * */ public Registration() { myUserList = FileLoader.readItemsFromFile(USERFILE_NAME); }

/** * getter for myUserList. * * @return myUserList */ public Map getMyUserList() { return myUserList; }

/** * display sign-in or registration options. */ public void printSignin() {

// ------------Fill in--------------------// }

/** * Verify Sign-in procedure. * * @param theUsername username for sign-in * @param thePassword password for signin * @return sign-in success */ public boolean login(final String theUsername, final String thePassword) {

// ------------Fill in--------------------// return true; }

/** * Adds a user to the registered user list. * * @param theUser an order to add to this shopping cart * @return true/false returns if registration is successfull */ public boolean register(final User theUser) {

// ------------Fill in--------------------//

return true;

}

/** * Empties the user list. */ public void clear() {

// ------------Fill in--------------------// }

@Override /** * String representation of the object * */ public String toString() {

// ------------Fill in--------------------// return "rentz"; }

}

****************************************************

package model;

/** * RentalMain provides the main method for a simple VehicleRental application. *

*/ public final class RentalMain {

/** * A private constructor, to prevent external instantiation. */ private RentalMain() {

}

/** * Main method for Rentz. * * @param theArgs argument for main method. */ public static void main(final String[] theArgs) { final Registration reg = new Registration(); reg.printSignin(); }

}

**************************************************** package model;

/** * Represents a single user for registration or sign-in. User is an immutable object. * * Constructors and methods of this class throw NullPointerException if required parameters are * null. * */ public final class User {

}

package utility;

import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.nio.file.Paths; import java.util.HashMap; import java.util.Map; import model.User;

/** * A utility class for the VehicleRental application. *

*/ public final class FileLoader {

/** * spit token. */ public static final String SPLIT_TOKEN = ",";

/** * A private constructor, to prevent external instantiation. */ private FileLoader() {

}

/** * Reads item information from a file and returns a List of Item objects. * * @param theFile the name of the file to load into a List of Items * @return a List of Item objects created from data in an input file */ public static Map readItemsFromFile(final String theFile) {

final Map userList = new HashMap();

final File filePath = Paths.get(theFile).toAbsolutePath().toFile(); try (BufferedReader in = new BufferedReader(new FileReader(filePath))) { // Java 7! String line; while ((line = in.readLine()) != null) { final String[] tokens = line.split(SPLIT_TOKEN); final String uName = tokens[0]; final String uPwd = tokens[1]; final boolean isVIP = Boolean.parseBoolean(tokens[2]); final User u = new User(uName, uPwd, isVIP); userList.put(uName, u); } in.close(); } catch (final IOException e) { e.printStackTrace(); } // no finally block needed to close 'input' with the Java 7 try with resource block

return userList; }

/** * Writes information to the file. * * @param theFile the name of the file to load into a List of Items * @param theUser the user details to write to file */ public static void writeUserToFile(final String theFile, final User theUser) {

try (BufferedWriter out = new BufferedWriter(new FileWriter(theFile, true))) { // Java // 7! final StringBuffer line = new StringBuffer(); line.append(theUser.getMyName() + SPLIT_TOKEN); line.append(theUser.getMyPassword() + SPLIT_TOKEN); line.append(theUser.getMyVIPStatus()); out.write(" "); out.write(line.toString()); } catch (final IOException e) { e.printStackTrace(); } // no finally block needed to close 'input' with the Java 7 try with resource block

} }

1. When you run RentalMain.java you should get the following output Problems Javadoc Declaration Console 3 RentalMain [Java Application] C:Program FilesVava\openjdk-12.0.2_windows-x64_bin jdk Enter 1 or 2 (1. New Registration 2. Login): 2. When 1 is entered the following should be displayed 82 Problems w Javadoc Declaration Console RentalMain [Java Application) C:\Program Files\ava\openjdk-12.0.2_windows-x64_binyjdk- Enter 1 or 2 (1. New Registration 2. Login): 1 You entered option 1 *** Enter Details ****** User Name: 3. After entering the user details for new registration, the following should be displayed If it is successful 3. Problems @ Javadoc Declaration Console x3 RentalMain (Java Application] C:\Program Files\Java\openjdk-12.0.2_windo Enter 1 or 2 (1. New Registration 2. Login): 1 You entered option 1 Enter Details User Name: student Password: 12345 isVIP(true/false): true Registration successfull 4. If the username already exists (even though password, VIPStatus are different), the system asks for a new username and password until a non-existing username and any password is entered. 22. Problems @ Javadoc Declaration Console 2 RentalMain [Java Application] C:\Program Files\Java\openjdk-12.0.2_windows-x64_bin\jdk-12.0.2\binja Enter 1 or 2 (1. New Registration 2. Login):1 You entered option 1 Enter Details ****** ** User Name: athirai User already exists, enter different user name: athirai User already exists, enter different user name:athirai User already exists, enter different user name:tcss305ba19 Password: 1234 isVIP(true/false):true Registration Successfull 5. When option 2 is selected, the following output should be displayed 2. Problems @ Javadoc Declaration Console X RentalMain (Java Application) C:\Program Files\Java\openjdk-12.0.2_windows-x64_bin jdk Enter 1 or 2 (1. New Registration 2. Login):2 You entered option 2 Enter Details User Name: 6. When the username and password is entered correctly, the following should be displayed 2. Problems Javadoc Declaration Console RentalMain [Java Application) C:\Program Files\Java\openjdk-12.0.2_windo Enter 1 or 2 (1. New Registration 2. Login):2 You entered option 2 Enter Details User Name: athirai Password: 1234 Login Successfull 7. When the username or password is entered in-correctly, the username and password should be re- entered until the credentials are found to be correct al Problems Javadoc Declaration Console X RentalMain [Java Application] C:\Program Files\Java\openjdk-12.0.2_windo Enter 1 or 2 (1. New Registration 2. Login):2 You entered option 2 Enter Details User Name: 305 student Password: 1234 Wrong Credentials Enter User Name: athirai Enter Password4568 Wrong Credentials Enter User Name: athirai Enter Password1234 Login Successfull