Question

Please fix this code I am having issues compiling it all together there is 3 codes here and it's giving me errors in my main method..... I feel like it might be something simple but I can't seem to find it.

package assignement2;

import java.util.ArrayList;
import java.util.Scanner;

public class reg1 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter the number of items: ");
int number = input.nextInt();
input.nextLine();
for (int i = 0; i < number; i++) {
System.out.print("Enter item name: ");
int n = input.nextInt();
System.out.print("Enter cost of item: ");
double costs = input.nextDouble();
input.nextLine();
ArrayList<Item> items = new ArrayList<>();
ArrayList<Payment> paymentDone = new ArrayList<>();
boolean add = items.add(new Item(n,costs));
}
double total = 0.0;
int items = input.nextInt();
   for (Item i : items) {
total += i.getCost();
}
final double subT = total;
final double salesTax = 0.07 * subT;
final double totalPaymentToBeDone = subT + salesTax;
int itemNumber = 1;
for (Item i : items) {
System.out.println("Item " + itemNumber + ": " + i.getName() + ": " + i.getCost());
itemNumber += 1;
}
System.out.println("Total: " + totalPaymentToBeDone);
boolean fullPaymentDone = false;
double amountDue;
double total1 = totalPaymentToBeDone;
while (!fullPaymentDone) {
System.out.println("Please enter payment type.\n1. Cash\n2. Debit Card\n3. Credit card\n4. Check");
int choice = input.nextInt();
input.nextLine();
System.out.println("Enter the amount to pay with this type.");
double amount = input.nextDouble();
amountDue = total1 - amount;
double change = 0.0;
if (amountDue < 0)
change = Math.abs(amountDue);
System.out.println("Total after payment: " + amountDue + "\n");
if (amountDue > 0.0) {
total = amountDue;
continue;
} else {

for (Item i : items) {
System.out.println(((Item) i).getName() + ": " + i.getCost());
}
System.out.print("-----------------------------------------\n");
System.out.println("Subtotal:\t" + subT);
System.out.println("Tax: \t" + salesTax);
System.out.println("Total: \t" + totalPaymentToBeDone);

System.out.println("Change: \t" + change);
fullPaymentDone = true;
}
}
input.close();
}
}

--------------------------------------------------------------------------------------------------------------------------------------------------------

package assignement2;

public class Payment {
   private double amount;
   private PaymentType paymentType;
   public Payment(double amount, PaymentType paymentType) {
   this.amount = amount;
   this.paymentType = paymentType;
   }
   public double getAmount() {
   return amount;
   }
   public void setAmount(double amount) {
   this.amount = amount;
   }
   public PaymentType getPaymentType() {
   return paymentType;
   }
   public void setPaymentType(PaymentType paymentType) {
   this.paymentType = paymentType;
   }   
}
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

package assignement2;

public class Item {

private String name;
private double cost;
public Item(String name, double cost) {
this.name = name;
this.cost = cost;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getCost() {
return cost;
}
public void setCost(double cost) {
this.cost = cost;
}   
}

Answer 1

This is the code of your question which fix all the errors, I mentioned below with all the changes with comments so that you can easily understand the code. Copy and paste the code in java IDE or compiler and run it. I also provide the screenshots of output.

reg1.java :-

package assignement2;

import java.util.ArrayList;
import java.util.Scanner;

public class reg1 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter the number of items: ");
int number = input.nextInt();

/* declare arraylist outside the scope because
if you declare arraylist inside then it only accesible within scope */
ArrayList<Item> items = new ArrayList<Item>();
for (int i = 0; i < number; i++) {
System.out.print("Enter item name: ");
String n = input.next();
System.out.print("Enter cost of item: ");
double costs = input.nextDouble();
boolean add = items.add(new Item(n,costs));
}
double total = 0.0;
for (Item i : items) {
total += i.getCost();
}
final double subT = total;
final double salesTax = 0.07 * subT;
final double totalPaymentToBeDone = subT + salesTax;
int itemNumber = 1;
for (Item i : items) {
System.out.println("Item " + itemNumber + ": " + i.getName() + ": " + i.getCost());
itemNumber += 1;
}
System.out.println("Total: " + totalPaymentToBeDone);
boolean fullPaymentDone = false;
double amountDue;
double total1 = totalPaymentToBeDone;
while (!fullPaymentDone) {
System.out.println("Please enter payment type.\n1. Cash\n2. Debit Card\n3. Credit card\n4. Check");
int choice = input.nextInt();
System.out.println("Enter the amount to pay with this type.");
double amount = input.nextDouble();
Payment paymentdone=new Payment(amount,choice);
amountDue = total1 - amount;
double change = 0.0;
if (amountDue < 0)
change = Math.abs(amountDue);
System.out.println("Total after payment: " + amountDue + "\n");
if (amountDue > 0.0) {
total = amountDue;
continue;
}
else {

for (Item i : items) {
System.out.println(((Item) i).getName() + ": " + i.getCost());
}
System.out.print("-----------------------------------------\n");
System.out.println("Subtotal:\t" + subT);
System.out.println("Tax: \t" + salesTax);
System.out.println("Total: \t" + totalPaymentToBeDone);

System.out.println("Change: \t" + change);
fullPaymentDone = true;
}
}
input.close();
}
}

Item.java :-

package assignement2;
public class Item {
private String name;
private double cost;
public Item(String name, double cost) {
this.name = name;
this.cost = cost;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getCost() {
return cost;
}
public void setCost(double cost) {
this.cost = cost;
}   
}

Payment.java :-

package assignement2;
public class Payment {
private double amount;
// take return type of variable paymentType as int
private int paymentType;
public Payment(double amount, int paymentType) {
this.amount = amount;
this.paymentType = paymentType;
}
public double getAmount() {
return amount;
}
public void setAmount(double amount) {
this.amount = amount;
}
public int getPaymentType() {
return paymentType;
}
public void setPaymentType(int paymentType) {
this.paymentType = paymentType;
}   
}

Screenshot of output :-