Question

import java.util.Scanner;
import java.util.Date;
import java.text.DateFormat;
import java.text.SimpleDateFormat;


import java.util.*;


class ReceiptCode {
private static final char[] ItemPrice = null;

    public static void main(String[] args) {
    // TODO Auto-generated method stub
    //Font f = new Font("Calibri", Font.BOLD, 20);

    @SuppressWarnings("resource")
    Scanner scan= new Scanner(System.in);
    System.out.println("Enter Company Name");
    String companyName= scan.nextLine();

    System.out.println("Enter STREET ADDRESS");
    String street=scan.nextLine();

    System.out.println("Enter CITY, STATE, ZIP");
    String CSZ=scan.nextLine();

    //System.out.println(companyName + "\n" + street + "\n" + CSZ);


    String breaker = "------------------------------";
    List <Items> invList = new ArrayList<Items>();
    System.out.println("How many items did you order?");
    int counter = scan.nextInt();
    double totalPrice = 0;
    for (int i=0; i<counter; i++)
    {
        System.out.println("Enter Item Name");
        String fName = scan.next();
        System.out.println("Enter Quantity?");
        int fType = scan.nextInt();
        System.out.println("Enter Price?");
        double fPrice = scan.nextDouble();
        Items inv = new Items(fName, fType, fPrice);
        double x = (fType * fPrice);
        totalPrice += x;
        invList.add(inv);
        //System.out.println(totalPrice);
    }

    DateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy");
    DateFormat timeFormat = new SimpleDateFormat ("HH:mm");
    Date date = new Date();
    Date time = new Date();
    System.out.printf("%-15s %n", companyName);
    System.out.printf("%-15s %14s %n",street + "\n" + CSZ,dateFormat.format(date));
    System.out.printf("%-15s %n", timeFormat.format(time));
    System.out.println(breaker);
    for (Items c : invList) {

        System.out.println (c.getItemQTY() + " x " + c.getItemName() + " : " +       c.getItemPrice() + "$");
           System.out.println (breaker);

}   
}
}



public class Items {

    private String ItemName;
    private int ItemQTY;
    private double ItemPrice;

public Items (String fdType, int fdAmount, double fdPrice)
{
    ItemName = fdType;
    ItemQTY = fdAmount;
    ItemPrice = fdPrice;
}
public String getItemName()
{
    return ItemName;
}
public int getItemQTY()
{
    return ItemQTY;
}
public double getItemPrice()
{
    return ItemPrice;
}
    }

我有几个问题。

我怎样才能得到所有要打印的项目的总价？
如何将该价格乘以固定的百分比？（税收）
如何将收据格式打印到物理打印机。

任何帮助都会很棒！你们是最棒的！

Answer 1

您可以在ReceiptCode类中设置总价格字段。通过实施适当的制定者和吸气剂，您可以获得总价。
完成第一步后，将价格乘以您的税。
采用PrintService界面。例如：

PrintService chosenPrinter =（PrintService）选择; DocPrintJob printJob = chosenPrinter.createPrintJob（）;

有关详细信息，请查看Java: Printing program output to a physical printer帖子。

数组列表。总价格打印出来

1 个答案: