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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/iEfoXdPr)
 Java Basics
 ===================
 

src/main/java/org/example/App.java

@@ -1,8 +1,198 @@
 package org.example;
 
+import java.util.*;
+
 public class App {
 
+    static int[] elpriser = new int[24];
+    static boolean priserInmatade = false;
+
     public static void main(String[] args) {
-        System.out.println("Hello There!");
+        Locale.setDefault(Locale.of("SV", "se"));
+        Scanner scanner = new Scanner(System.in);
+        String choice;
+
+        do {
+            System.out.print("""
+                    Elpriser
+                    ========
+                    1. Inmatning
+                    2. Min, Max och Medel
+                    3. Sortera
+                    4. Bästa Laddningstid (4h)
+                    5. Visualisering
+                    e. Avsluta
+                    """);
+
+            choice = scanner.nextLine().toLowerCase();
+
+            switch (choice) {
+                case "1":
+                    inmatning(scanner);
+                    break;
+
+                case "2":
+                    if (priserInmatade) {
+                        minMaxMedel();
+                    } else {
+                        System.out.print("Du måste först mata in elpriser.\n");
+                    }
+                    break;
+
+                case "3":
+                    if (priserInmatade) {
+                        Sortera();
+                    } else {
+                        System.out.println("Du måste först mata in elpriser.\n");
+                    }
+                    break;
+
+                case "4":
+                    if (priserInmatade) {
+                        BestLoadTimes();
+                    } else {
+                        System.out.println("Du måste först mata in elpriser.\n");
+                    }
+                    break;
+
+                case "5":
+                    if (priserInmatade) {
+                        visualisering();
+                    } else {
+                        System.out.println("Du måste först mata in elpriser.\n");
+                    }
+
+                case "e":
+                    break;
+
+                default:
+                    System.out.print("Ogiltigt val, försök igen.\n");
+                    break;
+            }
+
+        } while (!choice.equalsIgnoreCase("e"));
+
+        scanner.close();
+    }
+
+    public static void minMaxMedel() {
+        int min = elpriser[0];
+        int max = elpriser[0];
+        int minTimme = 0;
+        int maxTimme = 0;
+        int sum = 0;
+
+        for (int i = 0; i < elpriser.length; i++) {
+            sum += elpriser[i];
+            if (elpriser[i] < min) {
+                min = elpriser[i];
+                minTimme = i;
+            }
+            if (elpriser[i] > max) {
+                max = elpriser[i];
+                maxTimme = i;
+            }
+        }
+
+        double medel = sum / 24.0;
+        System.out.printf("\nLägsta pris: %02d-%02d, %d öre/kWh", minTimme, (minTimme + 1), min);
+        System.out.printf("\nHögsta pris: %02d-%02d, %d öre/kWh", maxTimme, (maxTimme + 1), max);
+        System.out.printf("\nMedelpris: %.2f öre/kWh\n", medel);
     }
+
+    public static void inmatning(Scanner scanner) {
+        System.out.println("\nMata in elpriser (i hela ören) för varje timme (00-01, 01-02, ... 23-24):");
+        for (int i = 0; i < 24; i++) {
+            System.out.println("Timme " + i + "-" + (i + 1) + ": ");
+            while (!scanner.hasNextInt()) {
+                System.out.println("Felaktig inmatning. Mata in ett heltal i ören");
+                scanner.next();
+            }
+            elpriser[i] = scanner.nextInt();
+        }
+        priserInmatade = true;
+        scanner.nextLine();
+    }
+
+    public static void Sortera() {
+        List<String[]> priceTimePairs = new ArrayList<>();
+
+        for (int i = 0; i < elpriser.length; i++) {
+            priceTimePairs.add(new String[]{String.format("%02d-%02d", i, (i + 1)), String.valueOf(elpriser[i])});
+
+        }
+
+        priceTimePairs.sort((pair1, pair2) -> Integer.compare(Integer.parseInt(pair2[1]), Integer.parseInt(pair1[1])));
+
+        for (String[] pair : priceTimePairs) {
+            System.out.printf("%s %s öre\n", pair[0], pair[1]);
+        }
+    }
+
+    public static void BestLoadTimes() {
+        int bestStartHour = 0;
+        int minCost = Integer.MAX_VALUE;
+
+        for (int i = 0; i <= elpriser.length - 4; i++) {
+            int currentCost = 0;
+            for (int j = i; j < i + 4; j++) {
+                currentCost += elpriser[j];
+            }
+            if (currentCost < minCost) {
+                minCost = currentCost;
+                bestStartHour = i;
+            }
+        }
+
+        double averagePrice = minCost / 4.0;
+        System.out.printf("\nPåbörja laddning klockan %02d\n", bestStartHour);
+        System.out.printf("Medelpris 4h: %.1f öre/kWh\n", averagePrice);
+    }
+
+    public static void visualisering() {
+        int maxPrice = Integer.MIN_VALUE;
+        int minPrice = Integer.MAX_VALUE;
+
+        for (int price : elpriser) {
+            if (price > maxPrice) {
+                maxPrice = price;
+            }
+            if (price < minPrice) {
+                minPrice = price;
+            }
+        }
+
+        int graphHeight = 5;
+        int priceRange = maxPrice - minPrice;
+
+        for (int i = graphHeight; i >= 0; i--) {
+            int currentLevelPrice = minPrice + (priceRange * i / graphHeight);
+            if (i == 5) System.out.printf("%3d|", maxPrice);
+            else if (i == 0) System.out.printf("%3d|", minPrice);
+            else System.out.print("   |");
+            for (int price : elpriser) {
+                if (price >= currentLevelPrice) {
+                    System.out.print("  x");
+                } else {
+                    System.out.print("   ");
+                }
+            }
+            System.out.print("\n");
+        }
+
+        System.out.print("   |");
+        for (int hour = 1; hour <= 24; hour++) {
+            System.out.print("---");
+        }
+        System.out.print("\n");
+
+        System.out.print("   |");
+        for (int hour = 0; hour < 24; hour++) {
+            System.out.printf(" %02d", hour);
+        }
+        System.out.print("\n");
+    }
+
 }
+
+