implement solution

Author: SteffenLm

Exercise.java

@@ -1,6 +1,29 @@
+import java.time.LocalDateTime;
+import java.util.Scanner;
+
 public class Exercise {
 
   public static void main(String[] args) {
-    // implement exercise here
+    @SuppressWarnings("resource")
+    Scanner sc = new Scanner(System.in);
+
+    System.out.print("Gib bitte ein Datum ein (dd.mm.yyyy): ");
+    String input = sc.next();
+
+    int day = Integer.valueOf(input.substring(0, 2));
+    int month = Integer.valueOf(input.substring(3, 5));
+    int year = Integer.valueOf(input.substring(6, 10));
+
+    LocalDateTime inputDate = LocalDateTime.of(year, month, day, 0, 0, 0);
+    int dayOfInputDate = inputDate.getDayOfYear();
+    LocalDateTime christmasDate = LocalDateTime.of(year, 12, 24, 0, 0, 0);
+    int dayOfChristmasDate = christmasDate.getDayOfYear();
+
+    System.out.println("Wochentag: " + inputDate.getDayOfWeek());
+    if (dayOfInputDate > dayOfChristmasDate) {
+      System.out.println("Tage bis Weihnachten: " + (dayOfInputDate - dayOfChristmasDate));
+    } else {
+      System.out.println("Tage bis Weihnachten: " + (dayOfChristmasDate - dayOfInputDate));
+    }
   }
 }