Answer to Question #320037 in Java | JSP | JSF for miaka

Question

1. You were asked to create a program for variety stores. The program should:

1. Input the customer name.

2. Input the products name and it's price. Specifically three products.

3. Get the total price of the 3 products.

4. Input the cash from customer.

5. Out the summary of the sales.

Answer 1

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;

public class Purchase {

    private String customerName;
    private ArrayList<String> productName = new ArrayList<String>();
    private ArrayList<Double> productPrice = new ArrayList<Double>();
    private double totalPrice;
    private double cash;

    public void setCustomerName(String customerName){
        this.customerName = customerName;
    }
    public void setProductName(String itemName){
        this.productName.add(itemName);
    }
    public void setProductPrice(double itemPrice){
        this.productPrice.add(itemPrice);
    }
    public void setTotalPrice(){
        for (int i = 0; i < this.productPrice.size(); i++){
            this.totalPrice += this.productPrice.get(i);
        }
    }
    public void setCash(double amountOfMoney){
        this.cash = amountOfMoney;
    }
    public String getCustomerName(){
        return this.customerName;
    }
    public String getProductName(int i){
        return this.productName.get(i);
    }
    public double getProductPrice(int i){
        return this.productPrice.get(i);
    }
    public double getTotalPrice(){
        return this.totalPrice;
    }
    public double getСash(){
        return this.cash;
    }
    public double getСhange(){
        return (this.cash - this.totalPrice);
    }
    public String[] separateBySpace(String str, String separator){
        String[] subStr = str.split(separator);
        return subStr;
    }
    public void sales(){
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter customer name: ");
        setCustomerName(scanner.nextLine());
        System.out.print("Input the products name and its price separated by a space: ");
        String[] prodAndPrice = separateBySpace(scanner.nextLine(), " ");
        for (int i = 0; i < prodAndPrice.length - 1; i +=2 ){
            setProductName(prodAndPrice[i]);
            setProductPrice(Double.valueOf(prodAndPrice[i + 1]));
        }
        setTotalPrice();
    }
    public void payment(){
        DecimalFormat df = new DecimalFormat("#,###,###.##");
        Scanner scanner = new Scanner(System.in);
        System.out.println("The customer owes: " + df.format(getTotalPrice()));
        System.out.println("Enter the cash from customer: ");
        setCash(scanner.nextDouble());
        System.out.println("Here is your change: " + df.format(getСhange()));
    }
    public void writeSummary(){
        DecimalFormat df = new DecimalFormat("#######.##");
        System.out.println("You are purchasing:");
        for (int i = 0; i < this.productPrice.size(); i++){
            System.out.print(getProductName(i) + " at " + getProductPrice(i) + "; ");
        }
        System.out.println("\nThe total cost is " + df.format(getTotalPrice()));
        System.out.println("The cash from customer: " + getСash());
        System.out.println("The change is: " + df.format(getСhange()));
    }
    public static void main(String args[]){
        Purchase purchase = new Purchase();
        purchase.sales();
        purchase.payment();
        purchase.writeSummary();
    }
}