How to realize simple takeout ordering system with java

This article mainly introduces java how to achieve a simple takeaway ordering system, the text is very detailed, has a certain reference value, interested friends must read it!

I. Use of technology

javaSE

II. Fulfillment of functions

Takeaway ordering system

Specific requirements are as follows:

Use the knowledge of selection structure, loop structure and array to realize a takeaway ordering system

III. Operation effect diagram

1. Ordering function

2. View Bag

3. Sign an order

4. delete the order

5. Praise

6. exit

public class Order { public static void main(String[] args) { int zero = 1; int x = 0;//Order array subscript String[] name = new String[100]; int[] time = new int[100];//order time String[] menu = new String[100]; double[] price = new double[100]; int[] od = new int[100];//Order number String[] adress = new String[100];//Delivery address int[] menuNum = new int[100];//Number of dishes String[] yuDing = new String[100];//Order Status int a = 0;//number of likes int b = 0;//number of likes int c = 0;//number of likes int panduan = 0;//Determine if there is such an order Scanner sc = new Scanner(System.in); do { System.out.println("Welcome to the takeaway ordering system"); System.out.println("******************************"); System.out.println("1. I want to order"); System.out.println("2. View meal bag"); System.out.println("3. Sign order"); System.out.println("4. Delete Order"); System.out.println("5. I like"); System.out.println("6. Exit system"); System.out.println("******************************"); System.out.println("Please select: "); int num = sc.nextInt(); while (num

< 1 || num >

6) { System.out.println("The option you entered is not available, re-enter"); num = sc.nextInt(); } if (num == 1) { od[x] = x + 1; yuDing[x] = "reserved"; System.out.println("*** I want to order **"); System.out.println("Please enter the name of the person ordering: "); name[x] = sc.next(); System.out.println("Sequence" + " " + " dish name " + " " + " unit price "); System.out.println(1 + " " + " braised eggplant " + " " + 24.00); System.out.println(2 + " " + " Sweet and sour ribs " + " " + 36.00); System.out.println(3 + " " + " Fish-flavored shredded pork " + " " + 32.00); System.out.println("Please select the dish number you want to order: "); int bianHao = sc.nextInt(); while (bianHao

< 1 || bianHao >

3) { System.out.println("The dish you selected is not available, enter again"); bianHao = sc.nextInt(); } if (bianHao == 1) { menu[x] = "Braised eggplant"; price[x] = 24.00; } else if (bianHao == 2) { menu[x] = "Sweet and sour ribs"; price[x] = 36.00; } else if (bianHao == 3) { menu[x] = "Fish flavored shredded pork"; price[x] = 32.00; } System.out.println("Please select the number of copies you want: "); menuNum[x] = sc.nextInt(); while (menuNum[x]

< 1) { System.out.println("您输入的数量不合法，再次选择"); menuNum[x] = sc.nextInt(); } System.out.println("请选输入送餐时间（送餐时间是10点至20点间整点送餐）："); time[x] = sc.nextInt(); while (time[x] < 10 || time[x] >

20) { System.out.println("The time you selected is not within the delivery time, select again"); time[x] = sc.nextInt(); } System.out.println("Please enter the delivery address"); adress[x] = sc.next(); System.out.println("Order successful!!! "); System.out.println("You ordered: " + menu[x] + " " + menuNum[x] + "copies"); System.out.println("Delivery time: " + time[x] + "point"); System.out.println("Meals: " + menuNum[x] * price[x] + "Yuan" + " " + "Meal delivery fee: 6 yuan" + " " + "Total: " + (menuNum[x] * price[x] + 6) + "yuan"); System.out.println("Enter 0 to return: "); zero = sc.nextInt(); while (zero != 0) { System.out.println("Input error, input again"); zero = sc.nextInt(); } x++; } else if (num == 2) { zero = 1; System.out.println("*** View meal belt ***"); System.out.println("Sequence" + " " + " Ordered by " + " " + " Meal information " + " " + " Delivery time " + " " + " Delivery address " + " " + " Total Amount " + " " + " Order Status "); for (int i = 0; i

< x; i++) { if (od[i] != -1) { System.out.println(od[i] + " " + name[i] + " " + menu[i] + " " + time[i] + " " + adress[i] + " " + (menuNum[i] * price[i] + 6) + " " + yuDing[i]); } } System.out.println("输入0返回："); zero = sc.nextInt(); while (zero != 0) { System.out.println("输入错误，再次输入"); zero = sc.nextInt(); } } else if (num == 3) { zero = 1; System.out.println("***签收订单***"); System.out.println("请选择要签收的订单的序号："); int numc = sc.nextInt(); for (int i = 0; i < od.length; i++) { if (numc == od[i]) { yuDing[i] = "已签收"; System.out.println("订单签收成功！"); panduan = 1; } } if (panduan != 1) { System.out.println("无此订单"); } System.out.println("输入0返回："); zero = sc.nextInt(); while (zero != 0) { System.out.println("输入错误，再次输入"); zero = sc.nextInt(); } } else if (num == 4) { zero = 1; panduan = 0; System.out.println("***删除订单***"); System.out.println("请选择要删除的订单的序号："); int numd = sc.nextInt(); for (int i = 0; i < od.length; i++) { if (numd == od[i]) { od[i] = -1; System.out.println("订单删除成功！"); panduan = 1; } } if (panduan != 1) { System.out.println("无此订单"); } System.out.println("输入0返回："); zero = sc.nextInt(); while (zero != 0) { System.out.println("输入错误，再次输入"); zero = sc.nextInt(); } } else if (num == 5) { zero = 1; System.out.println("***我要点赞***"); System.out.println("序号" + " " + "菜名" + " " + "单价"); System.out.println(1 + " " + "红烧茄子" + " " + 24.00 + " " + a + "赞"); System.out.println(2 + " " + "糖醋排骨" + " " + 36.00 + " " + b + "赞"); System.out.println(3 + " " + "鱼香肉丝" + " " + 32.00 + " " + c + "赞"); System.out.println("请选择要点赞的菜品的序号："); int zan = sc.nextInt(); while (zan < 1 || zan >

3) { System.out.println("The serial number you entered is incorrect, enter it again"); zan = sc.nextInt(); } if (zan == 1) { a++; } else if (zan == 2) { b++; } else if (zan == 3) { c++; } System.out.println("Enter 0 to return: "); zero = sc.nextInt(); while (zero != 0) { System.out.println("Input error, input again"); zero = sc.nextInt(); } } else if (num == 6) { zero = 1; System.out.println("Thanks for using, welcome next time! "); return; } } while (zero == 0); }} The above is all the content of this article "Java how to implement a simple takeaway ordering system", thank you for reading! Hope to share the content to help everyone, more relevant knowledge, welcome to pay attention to the industry information channel!