// Assignment #: ASU CSE205 Spring 2023 #10
// Name: Kathan Parag Shah
// StudentID: 1225611244
// Lecture: T TH 4:30pm
// Description: This Java software runs a loan officer and customer queuing system.
It determines the number of loan officers based on user input and then executes
operations such as adding a customer, checking out a customer, assigning a client
to a loan officer, releasing a customer from an officer, and listing customer
queues. The program presents a menu of available options and prompts the user for
input until it is terminated. To ensure correct user input, the code employs
exception management and input validation.
import java.io.*;
public class Assignment10
{
public static void main (String[] args) throws IOException
{
char input1;
String line = new String();
printMenu();
InputStreamReader isr = new InputStreamReader(System.in);
BufferedReader stdin = new BufferedReader(isr);
boolean setUpOfficers = false;
CustomerManagement management1 = null;
//The following part is to get a valid number of available loan officers
from a user
//in order to instantiate an object of CustomerManagement class
do
{
System.out.print("Please specify how many loan officer will be
available: ");
try
{
int numOfficers = Integer.parseInt(stdin.readLine().trim());
if (numOfficers > 0 )
{
//Create a patient management object
management1 = new CustomerManagement(numOfficers);
setUpOfficers = true;
}
else
{
System.out.print("\nPlease enter a positive integer");
}
}
catch(NumberFormatException ex)
{
System.out.print("\nPlease enter a valid number");
}
} while (setUpOfficers == false);
do // will ask for user input
{
System.out.print("\nWhat action would you like to perform:");
line = stdin.readLine();
input1 = line.charAt(0);
input1 = Character.toUpperCase(input1);
if (line.length() == 1)
{
// matches one of the case statements
switch (input1)
{
case 'A': //Add a Customer
try
{
System.out.print("\nPlease enter the cusomter ID to
add: ");
int id = Integer.parseInt(stdin.readLine().trim());
System.out.print("\nPlease specify the category of the
customer: ");
String category1 = stdin.readLine().trim();
boolean added = management1.addCustomer(id, category1);
if (added)
{
System.out.print("\nThe customer with id: " + id +
" and category: " + category1
+ " is added\n");
}
else
{
System.out.print("\nThe customer with id: " + id +
" and category: " + category1
+ " is NOT added\n");
}
}
catch(NumberFormatException ex)
{
System.out.print("\nPlease enter a valid number");
}
break;
case 'C': //check Out a Customer
Customer customer1 = management1.checkoutCustomer();
if (customer1 == null)
{
System.out.print("\nNo customer was checked out"+"\n");
}
else
{
System.out.print("\nCustomer " + customer1.toString() +
" was checked out\n");
}
break;
case 'L': //List queues
management1.printQueues();
break;
case 'Q': //Quit
break;
case 'R': //Release Customer From the relevant loan officer
try
{
System.out.print("\nWhich loan officer is releasing a
customer? Enter officer ID: ");
int officerID =
Integer.parseInt(stdin.readLine().trim());
Customer releasedCustomer =
management1.releaseCustomerFromOfficer(officerID);
if (releasedCustomer == null)
{
System.out.print("\nNo customer was released"+
"\n");
}
else
{
System.out.print("\nCustomer " +
releasedCustomer.toString() + " was serviced and checked out\n");
}
}
catch(NumberFormatException ex)
{
System.out.print("\nPlease enter a valid number");
}
break;
case 'S': //Assign a Customer to a loan officer
Customer customer2 =
management1.assignCustomerToLoanOfficer();
if (customer2 == null)
{
System.out.print("\nNo customer was assigned to the
loan officer" + "\n");
}
else
{
System.out.print("\nCustomer " + customer2.toString() +
" was assigned to a loan officer" + "\n");
}
break;
case '?': //Display Menu
printMenu();
break;
default:
System.out.print("\nUnknown action");
break;
}
}
else
{
System.out.print("\nUnknown action");
}
} while (input1 != 'Q' || line.length() != 1);
}
/** The method printMenu displays the menu to a user**/
public static void printMenu()
{
System.out.print("Choice\t\tAction\n" +
