Add dataclasses exercise

Author: AliQassab

prep-exercises/dataclasses_exercise.py

@@ -0,0 +1,25 @@
+from dataclasses import dataclass
+from datetime import date
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    date_of_birth: date
+    preferred_operating_system: str
+
+    def is_adult(self) -> bool:
+        current_date = date.today()
+        age = current_date.year - self.date_of_birth.year - (
+            (current_date.month, current_date.day) < (self.date_of_birth.month, self.date_of_birth.day)
+        )
+        return age >= 18
+
+# Example usage:
+imran = Person("Imran", date(2001, 5, 15), "Ubuntu")
+print(imran)
+print(imran.is_adult())
+
+eliza = Person("Eliza", date(1990, 3, 20), "Arch Linux")
+print(eliza)
+print(eliza.is_adult())
+