Kennyedelin receipt

README.md

@@ -1,3 +1,4 @@
+[![Review Assignment Due Date](https://classroom.github.com/assets/deadline-readme-button-22041afd0340ce965d47ae6ef1cefeee28c7c493a6346c4f15d667ab976d596c.svg)](https://classroom.github.com/a/6tlCTWq0)
 # 🧾 Mystery Receipt Generator (Java CLI Project)
 
 ## Overview

pom.xml

@@ -1,17 +1,20 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
+https://maven.apache.org/xsd/maven-4.0.0.xsd">
+
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>org.codedifferently</groupId>
-    <artifactId>untitled</artifactId>
+    <groupId>com.kennedy</groupId>
+    <artifactId>java-receipt-generator</artifactId>
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.source>25</maven.compiler.source>
-        <maven.compiler.target>25</maven.compiler.target>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
-</project>
+</project>
+

src/main/java/CodeGenerator.java

@@ -0,0 +1,27 @@
+public class CodeGenerator {
+
+    public static String buildReceiptCode(String name, int visitId) {
+
+
+        String cleaned = (name == null) ? "GUEST" : name.trim();   // trim
+        String upper = cleaned.toUpperCase();                      // toUpperCase
+
+        String key;
+
+        if (upper.length() >= 3) {                                 // length
+
+            key = upper.substring(0, 3);                           // substring
+        } else {
+
+            key = (upper + "XXX").substring(0, 3);
+        }
+
+        char marker = !upper.isEmpty() ? upper.charAt(0) : 'G';  // charAt
+
+        return key + "-" + marker + "-" + visitId;
+
+
+
+    }
+}
+

src/main/java/Main.java

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+public class Main {
+
+    public static void main(String[] args) {
+        ReceiptApp.run();
+    }
+}

src/main/java/PriceGenerator.java

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+import java.util.Random;
+
+public class PriceGenerator {
+
+    public static int generateVisitId(Random random) {
+        return 1000 + random.nextInt(9000); // 1000–9999
+    }
+
+    public static double[] generateItemPrices(Random random) {
+
+
+        double[] items = new double[3];
+        for (int i = 0; i < items.length; i++) {
+
+
+            // $2.50 to $35.00
+            double raw = 2.50 + (32.50 * random.nextDouble());
+            items[i] = roundMoney(raw);
+        }
+        return items;
+    }
+
+    public static double generateTaxRate(Random random) {
+        // 4% to 9%
+        return 0.04 + (0.05 * random.nextDouble());
+    }
+
+    public static double subtotal(double[] items) {
+        double sum = 0;
+
+        for (double p : items) sum += p;
+
+        return roundMoney(sum);
+    }
+
+    // Lucky visit bonus (if last digit is 7 => 7% off)
+    public static double luckyVisitBonusDiscount(int visitId, double subtotal) {
+        if (visitId % 10 == 7) {
+            return roundMoney(subtotal * 0.07);
+        }
+        return 0.0;
+    }
+
+    // Mystery fee or discount
+    public static double mysteryAdjustment(Random random, double subtotal) {
+        boolean fee = random.nextBoolean();
+
+        double percent = 0.02 + (0.04 * random.nextDouble()); // 2%..6%
+
+        double amount = roundMoney(subtotal * percent);
+
+        return fee ? amount : -amount;
+    }
+
+    // VIP coupon randomly works + case-insensitive check
+    public static double couponDiscount(Random random, String couponCode, double subtotal) {
+        if (couponCode != null && couponCode.trim().equalsIgnoreCase("VIP")) {
+            boolean works = random.nextInt(10) < 6;// 60%
+            if (works) {
+                return roundMoney(subtotal * 0.15);
+            }
+        }
+        return 0.0;
+    }
+
+    public static double roundMoney(double value) {
+        return Math.round(value * 100.0) / 100.0;
+
+
+
+    }
+}

src/main/java/README.md

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+# RANDOM RECEIPT GENERATOR
+## Developer : Kenny Edelin
+
+### Main.java
+In this class, you will see my main method that allows my receipt to RUN.
+
+### Receipt.java
+In this class, you will see sections for User Inout, as well as Random Data generations. User Input, consist of my three question inquiring about Name, Budget and Vip code.
+
+### PriceGenerator.java
+In this class, you will see mostly random data generators. Generating item prices, as well as random discounts, mystery adjustments, tax rates and rounded totals. Also variable and output types that I need.
+
+### CodeGenerator.java
+This class consist of if/else statements that build the receipt code. These if/else statements are based on the length of user input. There are also return statements to specify what my output should be.
+
+### ReceiptGenerator.java
+This class has all contents that the receipt includes, which in return calls for a lot of print statements. Also, I tried my best to separate each section on the receipt with hyphens.
+
+### CLOSING
+Thank you for using and analyzing my Random Receipt Generator with me!
+!

src/main/java/ReceiptApp.java

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+import java.util.Random;
+import java.util.Scanner;
+
+public class ReceiptApp {
+
+    public static void run() {
+        Scanner scanner = new Scanner(System.in);
+        Random random = new Random();
+
+        // User Input
+        System.out.print("What is your name? ");
+        String name = scanner.nextLine().trim();
+
+        System.out.print("What is your budget? ");
+        double budget = scanner.nextDouble();
+        scanner.nextLine();
+
+        System.out.print("What is your coupon code: ");
+        String coupon = scanner.nextLine();
+
+        // Random Input
+        int visitId = PriceGenerator.generateVisitId(random);
+        double[] items = PriceGenerator.generateItemPrices(random);
+        double taxRate = PriceGenerator.generateTaxRate(random);
+
+        String receiptCode = CodeGenerator.buildReceiptCode(name, visitId);
+
+        double subtotal = PriceGenerator.subtotal(items);
+        double tax = subtotal * taxRate;
+
+        double luckyDiscount = PriceGenerator.luckyVisitBonusDiscount(visitId, subtotal);
+        double mystery = PriceGenerator.mysteryAdjustment(random, subtotal);
+        double couponDiscount = PriceGenerator.couponDiscount(random, coupon, subtotal);
+
+        double total = subtotal + tax + mystery - luckyDiscount - couponDiscount;
+        total = PriceGenerator.roundMoney(Math.max(0, total));
+
+        double remaining = PriceGenerator.roundMoney(budget - total);
+
+        ReceiptPrinter.print(
+                "Ken's Grocery Store",
+                name,
+                visitId,
+                receiptCode,
+                items,
+                subtotal,
+                taxRate,
+                tax,
+                mystery,
+                luckyDiscount,
+                coupon,
+                couponDiscount,
+                total,
+                budget,
+                remaining
+        );
+
+        scanner.close();
+    }
+}
+

src/main/java/ReceiptPrinter.java

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+public class ReceiptPrinter {
+
+    public static void print(
+
+
+            String storeName,
+
+            String customerName,
+
+            int visitId,
+
+            String receiptCode,
+
+            double[] items,
+            double subtotal,
+            double taxRate,
+            double tax,
+            double mysteryAdjustment,
+            double luckyBonusDiscount,
+
+            String coupon,
+
+            double couponDiscount,
+            double total,
+            double budget,
+            double remaining
+
+
+    ) {
+        System.out.println();
+
+        System.out.println("----- Welcome to " + storeName + " -----");
+
+        System.out.println("Customer: " + customerName);
+
+        System.out.println("Visit ID: " + visitId);
+
+        System.out.println("Receipt Code: " + receiptCode);
+
+        System.out.println("----------------------------------------");
+
+        for (int i = 0; i < items.length; i++) {
+            System.out.printf("Item %d: $%.2f%n", (i + 1), items[i]);
+        }
+
+        System.out.println("----------------------------------------");
+
+        System.out.printf("Subtotal: $%.2f%n", subtotal);
+
+        System.out.printf("Tax (%.1f%%): $%.2f%n", taxRate * 100.0, tax);
+
+        if (mysteryAdjustment > 0) {
+            System.out.printf("Mystery Fee: +$%.2f%n", mysteryAdjustment);
+
+        } else if (mysteryAdjustment < 0) {
+            System.out.printf("Mystery Discount: -$%.2f%n", Math.abs(mysteryAdjustment));
+        }
+
+        if (luckyBonusDiscount > 0) {
+            System.out.printf("Lucky Visit Bonus: -$%.2f%n", luckyBonusDiscount);
+        }
+
+        if (couponDiscount > 0) {
+            System.out.printf("Coupon (%s) Applied: -$%.2f%n", coupon.trim().toUpperCase(), couponDiscount);
+        } else {
+            System.out.printf("Coupon (%s): Not Applied%n", coupon.trim());
+        }
+
+        System.out.println("----------------------------------------");
+
+        System.out.printf("FINAL TOTAL: $%.2f%n", total);
+
+        System.out.printf("Budget: $%.2f%n", budget);
+
+        if (remaining >= 0) {
+            System.out.printf("Budget Remaining: $%.2f%n", remaining);
+            if (remaining < 5) {
+                System.out.println("WARNING: Tight budget. You're cutting it close.");
+            }
+        } else {
+            System.out.printf("Short By: $%.2f%n", Math.abs(remaining));
+
+            System.out.println("WARNING: You do not have enough budget to complete this order.");
+
+        }
+
+        System.out.println("----------------------------------------");
+
+
+
+
+        System.out.println("Thank you. Come again.");
+    }
+}