需要制作一个对齐物品价格的收据（使用javax.swing。*可以根据需要导入其他物品）

Question

我需要制作一个显示任何公司收据的程序。因此，用户应输入购买的四件商品的公司名称，日期，时间，名称和价格，并且程序应添加价格以达到总数，并且应显示如下图。

这是我到现在所拥有的： -

import javax.swing.*;

public class Receipt {

    public static void main(String[] args) {

        String companyName;
        String itemName1;
        String itemName2;
        String itemName3;
        String itemName4;
        double item1;
        double item2;
        double item3;
        double item4;
        double total;
        double subTotal;
        double hst;
        String date;
        String time;

        date = JOptionPane.showInputDialog(null, "Please enter the date of the transaction in MM/DD/YYYY");
        time = JOptionPane.showInputDialog(null, "Please enter the time of the transaction");
        companyName = JOptionPane.showInputDialog(null, "Please enter the name of company you wish to make the reciept for");
        itemName1 = JOptionPane.showInputDialog(null, "What is your first item?");
        item1 = Double.parseDouble(JOptionPane.showInputDialog(null, "Enter Price."));
        itemName2 = JOptionPane.showInputDialog(null, "What is your second item?");
        item2 = Double.parseDouble(JOptionPane.showInputDialog(null, "Enter Price."));
        itemName3 = JOptionPane.showInputDialog(null, "What is your third item?");
        item3 = Double.parseDouble(JOptionPane.showInputDialog(null, "Enter Price."));
        itemName4 = JOptionPane.showInputDialog(null, "What is your fourth item?");
        item4 = Double.parseDouble(JOptionPane.showInputDialog(null, "Enter Price."));

        subTotal = item1 + item2 + item3 + item4;

        hst = 0.13 * subTotal;

        total = 1.13 * subTotal;

    }
}