JAVA PROGRAMS CỦA HÓA ĐƠN BÁN HÀNG.

NHỮNG HÓA ĐƠN BÁN HÀNG CÓ SALE TAX.

 1-Receipt of one item.

 public class Purchase {

 // We declare constant outside of main;all methods can access to it.

  final static double TAX_RATE = .08;

  public static void main(String[] args) {

      double itemprice = 10.25;

     // We calculate the total price here.

      double finalprice = itemprice*(1+TAX_RATE);

    System.out.println(" Your purchase  cost : "+finalprice+" with tax.");

} }

SUCCESS.

Compilation time: 0.94 sec, absolute running time: 0.24 sec,

cpu time: 0.12 sec, memory peak: 23 Mb, absolute service time: 1.19 sec

Output. Your purchase cost 11.07 with tax.

2-Receipt of 2 items.

class Rextester{  

  final static double TAX_RATE = 0.08;

  public static void main(String[] args) {

     double item1price = 10.25,item2price = 5.25,item3price = 2.25;

     double finalprice = (item1price+item2price+item3price)*(1+TAX_RATE);

 System.out.println("Your total purchase is:"+finalprice+" with tax.");

 }}

SUCCESS

Compilation time: 1.14 sec, absolute running time: 0.26 sec, 

cpu time: 0.13 sec, memory peak: 22 Mb, absolute service time: 1.41 sec

output

Your total purchase is:19.17 with tax.

3- Receipt for T-Shirts Shop.

    USING JAVA SCANNER

class ideone{

public static void main (String[] args) {

      System.out.println (" T-SHIRTS SHOP ESTABLISHED IN 1986 ");

      System.out.println (" Owner : Henry Baxao Xaoke ");

      System.out.println ("----------------------------------");

     int tsmall, tmed, tlarge, xlarge ;

     double price1 =1.5, price2 = 2.5, price3 = 3.25, price4= 3.75, total1, total2 ;

     Scanner scan = new Scanner (System.in);

     System.out.println (" *Muôn bao nhiêu Small,Medium,Large,Xlarge ? : ");

          tsmall = scan.nextInt(); tmed = scan.nextInt();

          tlarge = scan.nextInt(); xlarge = scan.nextInt();

System.out.println (" *Ban mua : " +tsmall+ " "+ "SM" +";"+tmed+" "+ "MD" +";"+tlarge+" " +"LG" +";"+ xlarge+ " " +"XLG");  

total1 =(tsmall*price1 + tmed*price2 + tlarge*price3 + xlarge*price4);

total2 =(tsmall*price1+ tmed*price2+ tlarge*price3+ xlarge*price4)*1.08;

System.out.printf (" *Giá tông công không có Tax :  %.2f%n ", total1);

System.out.printf (" *Giá tông công có Tax :  %.2f%n ", total2);

 System.out.println (" THANK YOU-CÁM ON" );

// Viết double total, nhưng nếu dùng format thì phải đổi ra %.2f%n mới chọn được // // những con số sau dấu chấm theo ý muốn.

}}

SUCCESS.

Outpt.

T-SHIRTS SHOP ESTABLISHED IN 1986 

 Owner : Henry Baxao Xaoke 

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

 *Muôn bao nhiêu Small,Medium,Large,Xlarge ? : 

 *Ban mua : 8 SM;6 MD;4 LG;2 XLG

 *Giá tông công không có Tax :  47.50

  *Giá tông công có Tax :  51.30

  THANK YOU-CÁM ON

4-Receipt Written With Java Formatting.

       Using Java Formatter.

        class Rextester{      

       private double total = 0;

       private double total2 = 0;

       private Formatter f = new Formatter(System.out);

      

       public void printTitle(){

        f.format("%-15s %10s %15s \n", "ITEM", "QTY","PRICE");

        f.format("%-15s %10s %15s \n", "----","----" ,"----");}

       public void print(String name, int qty, double price){  

        f.format("%-15s %10d %15.2f \n", name, qty, price);total+=qty;

        total2+=price; }

      

       public void printTotal(){

       f.format("%-15s %10s %15.2f\n", "TAX", "   " , total2*0.08);

       f.format("%-15s %10s %15s\n",    "   ",  "----", "----");

       f.format("%-15s %10.1s %15.2f\n", "TOTAL", total, total2*1.08);}

       

       public static void main(String[] args){

       receipt.printTitle();

       receipt.print("T-shirts small ", 4, 12.00);

       receipt.print("Ceramic spoons", 2, 2.50);

       receipt.print("Plastic bucket",1, 4.25);

       receipt.print("Aluminium foil",2, 2.50);

       receipt.print("Saran", 2, 5.00);

       receipt.printTotal();

}}

SUCCESS . Compilation time: 0.73 sec, absolute running time: 0.14 sec,

cpu time: 0.06 sec, memory peak: 18 Mb,absolute service time: 0.88 sec

Output.

ITEM                   QTY           PRICE 

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

T-shirts small           4           12.00 

Ceramic spoons           2            2.50 

Plastic bucket           1            4.25 

Aluminium foil           2            2.50 

Saran                    2            5.00 

TAX                                   2.10

                      ----            ----

TOTAL                   11           28.35