Question

Customer Accounts

This program should be designed and written by a team of students. Here are some

suggestions:

Write a program that uses a structure to store the following information about a

customer account:

• Name

• Address

• City, state, and ZIP

• Telephone number

• Account balance

• Date of last payment

The structure should be used to store customer account records in a file. The program

should have a menu that lets the user perform the following operations:

• Enter new records into the file

• Search for a particular customer's record and display it

• Search for a particular customer's record and delete it

• Search for a particular customer's record and change it

• Display the contents of the entire file

Input Validation: When the information for a new account is entered, be sure the

user enters data for all the fields. No negative account balances should be entered.

Answer 1

Short Summary:

Implemented the program as per requirement in java(as the language is not mentioned in the question)
Attached source code and sample output

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Source Code:

import java.util.ArrayList;
import java.util.Date;
import java.util.ListIterator;
import java.util.Scanner;

/**This class stores the below values of customer**/
public class Customer {

   private String name;
   private String address;
   private String city;
   private String state;
   private String zip;
   private String phone;
   private double acctBalance;
   private Date dateOfPayment;

   /**Constructor**/
   public Customer(String name, String address, String city, String state, String zip, String phone,
           double acctBalance, Date dateOfPayment) {
       this.name = name;
       this.address = address;
       this.city = city;
       this.state = state;
       this.zip = zip;
       this.phone = phone;
       this.acctBalance = acctBalance;
       this.dateOfPayment = dateOfPayment;
   }
//Accessors
   public String getName() {
       return name;
   }

   public String getAddress() {
       return address;
   }

   public String getCity() {
       return city;
   }

   public String getState() {
       return state;
   }

   public String getZip() {
       return zip;
   }

   public String getPhone() {
       return phone;
   }

   public double getAcctBalance() {
       return acctBalance;
   }

   public Date getDateOfPayment() {
       return dateOfPayment;
   }

   public static void main(String args[])
   {

       //Scanner to get user input
       Scanner input=new Scanner(System.in);

       ArrayList <Customer> custList=new ArrayList<Customer>();

       int choice=1;

       //Loop until choice is zero to quit
       while(choice!=0)
       {
           System.out.println("1. Enter new record\n2. Display a customer record\n3. Delete a record\n4. Change a record\n5. Display all records\nEnter your choice or 0 to quit: ");
           choice=input.nextInt();

           input.nextLine();
           switch(choice)
           {
           case 1:

               System.out.println("Enter customer name: ");
               String username=input.nextLine();
               System.out.println("Enter Address: ");
               String addr=input.nextLine();
               System.out.println("Enter City: ");
               String cityEntered=input.nextLine();
               System.out.println("Enter state: ");
               String stateEntered=input.nextLine();
               System.out.println("Enter zip: ");
               String zipEntered=input.nextLine();
               System.out.println("Enter phone: ");
               String phoneNo=input.nextLine();
               double balance=0;

               boolean valid=false;
               //Validate acct balance
               while(!valid)
               {
                   System.out.println("Enter account balance: ");
                   balance=input.nextDouble();
                   input.nextLine();
                   if(balance<0)
                       System.out.println("Account balance cannot be negative!");
                   else
                       valid=true;
               }

               Customer cust=new Customer(username, addr, cityEntered, stateEntered, zipEntered, phoneNo,balance, new Date());
               custList.add(cust);
               break;
           case 2:
               System.out.println("Enter customer Name: ");
               String nameEntered=input.nextLine();
               for(Customer custObj:custList)
               {
                   if(custObj.getName().equalsIgnoreCase(nameEntered))
                       System.out.println(custObj.toString());
               }
               break;
           case 3:
               System.out.println("Enter the customer name you want to delete: ");
               nameEntered=input.nextLine();
               ListIterator<Customer> litr =custList.listIterator();

                   while(litr.hasNext())
                   {
                       Customer custObj=litr.next();
                       if(custObj.getName().equalsIgnoreCase(nameEntered))
                       {
                           custList.remove(custObj);
                       }
                   }
               break;
           case 4:
               System.out.println("Enter the customer name you want to update: ");
               nameEntered=input.nextLine();
               ListIterator<Customer> litr1 =custList.listIterator();

               while(litr1.hasNext())
               {
                   Customer custObj=litr1.next();
                   if(custObj.getName().equalsIgnoreCase(nameEntered))
                   {
                       custList.remove(custObj);
                   }
               }
               System.out.println("Enter new details below:");
               System.out.println("Enter Address: ");
               addr=input.nextLine();
               System.out.println("Enter City: ");
               cityEntered=input.nextLine();
               System.out.println("Enter state: ");
               stateEntered=input.nextLine();
               System.out.println("Enter zip: ");
               zipEntered=input.nextLine();
               System.out.println("Enter phone: ");
               phoneNo=input.nextLine();
               System.out.println("Enter account balance: ");
               balance=input.nextDouble();
               input.nextLine();
               cust=new Customer(nameEntered, addr, cityEntered, stateEntered, zipEntered, phoneNo,balance, new Date());
               custList.add(cust);  
               break;
           case 5:
               System.out.println(custList.toString());
               break;

           }
       }

   }

   @Override
   public String toString() {
       return "Customer [name=" + name + ", address=" + address + ", city=" + city + ", state=" + state + ", zip="
               + zip + ", phone=" + phone + ", acctBalance=" + acctBalance + ", dateOfPayment=" + dateOfPayment + "]\n";
   }

}

Code Screenshot:

3 import java.util.ArrayList; 4 import java.util.Date; 5 import java.util.ListIterator; 6 import java.util.Scanner; 7 8 /**This class stores the below values of customer**/ 9 public class Customer { 10 11 private String name; 12 private String address; 13 private String city; 14 private String state; 15 private String zip; 16 private String phone; 17 private double acctBalance; 18 private Date dateOfPayment; 19 20 /**Constructor**/ 210 public Customer (String name, String address, String city, String state, String zip, String phone, 22 double acctBalance, Date dateOfPayment) { 23 this.name = name; 24 this.address = address; 25 this.city = city; 26 this.state = state; 27 this.zip = zip; 28 this.phone - phone; 29 this.acctBalance = acctBalance; 30 this.dateOfPayment = dateOfPayment; 31 32 // Accessors 33e public String getName() { 34 return name; 35 } 36 37e public String getAddress() { 38 return address; 39 } 40 Activate Wir

42 43 puviil JLI 1118 ECLLILY return city; } 44 public String getState() { return state; } public String getZip() { return zip; } public String getPhone() { return phone; } 450 46 47 48 490 50 51 52 53e 54 55 56 570 58 59 60 61e 62 63 64 65 66- 67 68 69 79 71 72 public double getAcctBalance() { return acctBalance; } public Date getDateOfPayment() { return dateOfPayment; } public static void main(String args[]) { //Scanner to get user input Scanner input=new Scanner(System.in); ArrayList <Customer> custList=new ArrayList<Customer>(); 73 int choice=1; 74 75 76 77 78 79 // Loop until choice is zero to quit while(choice!=0) { Activate Windows System.out.println("1. Enter new record\n2. Display a customer record\n3. Delete a record\n4. Change a record ns. Display all records\nEnter you WAN

choice=input.nextInt(); input.nextLine(); switch(choice) { case 1: 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 System.out.println("Enter customer name: "); String username=input.nextLine(); System.out.println("Enter Address: "); String addr=input.nextLine(); System.out.println("Enter City: "); String cityEntered=input.nextLine(); System.out.println("Enter state: "); String stateEntered=input.nextLine(); System.out.println("Enter zip: "); String zipEntered-input.nextLine(); System.out.println("Enter phone: "); String phoneNo=input.nextLine(); double balance=0; boolean valid=false; //Validate acct balance while(!valid) { System.out.println("Enter account balance: "); balance=input.nextDouble(); input.nextLine(); if (balance<o) System.out.println("Account balance cannot be negative!"); else valid=true; } Customer cust=new Customer (username, addr, cityEntered, stateEntered, zipEntered, phoneNo, balance, new Date(); custList.add(cust); break; Activate Wind Go to Settings to Caca 2

150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 1790 180 181 182 183 184 185 186 } custList.remove(custobj); } } System.out.println("Enter new details below:"); System.out.println("Enter Address: "); addr=input.nextLine(); System.out.println("Enter City: "); city Entered=input.nextLine(); System.out.println("Enter state: "); stateEntered=input.nextLine(); System.out.println("Enter zip: "); zipEntered=input.nextLine(); System.out.println("Enter phone: "); phoneNo=input.nextLine(); System.out.println("Enter account balance: "); balance=input.nextDouble(); input.nextLine(); cust=new Customer (name Entered, addr, cityEntered, state Entered, zipEntered, phoneNo, balance, new Date(); custList.add(cust); break; case 5: System.out.println(custList.toString(); break; } } } @Override public String toString() { return "Customer [name=" + name + ", address=" + address + ", city=" + city + ", state=" + state + ", zip=" + zip + ", phone=" + phone + ", acctBalance=" + acctBalance + ", dateOfPayment=" + dateOfPayment + "]\n"; } Activate Windows

Output:

<terminated> Customer (Java Application] C:\Program Files\Java\jre1.8.0_261\bin\javaw.exe (Oct 27, 2020, 1:16:34 AM) 1. Enter new record 2. Display a customer record 3. Delete a record 4. Change a record 5. Display all records Enter your choice or to quit: 1 Enter customer name: John Enter Address: 12, Ashford Enter City: 1 Atlanta Enter state: GA Enter zip: 325435 Enter phone: 123424234 Enter account balance: -50 Account balance cannot be negative! Enter account balance: 50 1. Enter new record 2. Display a customer record 3. Delete a record 4. Change a record 5. Display all records Enter your choice or o to quit: 1 Enter customer name: Peter Enter Address: 45mdunwoody Enter City: Florisda ---


<terminated Customer (Java Application] C:\Program Files Vava jre1.8.0_201\binjavaw.exe (Oct 21, 2020, 1:16:34 AM) Enter state: Tampa Enter zip: 4564365 Enter phone: 124-4534543 Enter account balance: 100 1. Enter new record 2. Display a customer record 3. Delete a record 4. Change a record 5. Display all records Enter your choice or o to quit: 5 [Customer [name=John, address=12, Ashford, city=Atlanta, state=GA, zip=325435, phone=123424234, acctBalance=50.0, dateOfPayment=Tue Oct 27 01:16:53 IST 2020] · Customer [name=Peter, address=45mdunwoody, city=Florisda, state=Tampa, zip=4564365, phone=124-4534543, acctBalance=100.6, dateOfPayment=Tue Oct 27 01:17:13 IST 20 1 1. Enter new record 2. Display a customer record 3. Delete a record 4. Change a record 5. Display all records Enter your choice or o to quit: 2 Enter customer Name: John Customer [name=John, address=12, Ashford, city=Atlanta, state=GA, zip=325435, phone=123424234, acctBalance=50.0, dateOfPayment=Tue Oct 27 01:16:53 IST 2020] 1. Enter new record 2. Display a customer record 3. Delete a record 4. Change a record 5. Display all records Enter your choice or to quit: 3 Enter the customer name you want to delete: Activate Windows

Enter the customer name you want to delete: John 1. Enter new record 2. Display a customer record 3. Delete a record 4. Change a record 5. Display all records Enter your choice or to quit: 5 [Customer [name=Peter, address=45mdunwoody, city=Florisda, state=Tampa, zip=4564365, phone=124-4534543, acctBalance=100.0, dateOfPayment=Tue Oct 27 01:17:13 IST 1. Enter new record 2. Display a customer record 3. Delete a record 4. Change a record 5. Display all records Enter your choice or to quit: Activate Windows

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