Add methods exercise

Author: AliQassab

prep-exercises/methods.py

@@ -0,0 +1,22 @@
+from datetime import date
+
+class Person:
+    def __init__(self, name: str, DoB: date, preferred_operating_system: str):
+        self.name = name
+        self.DoB = DoB
+        self.preferred_operating_system = preferred_operating_system
+
+    def is_adult(self) -> bool:
+        current_date = date.today()
+        age = current_date.year - self.DoB.year - (
+            (current_date.month, current_date.day) < (self.DoB.month, self.DoB.day)
+        )
+        return age >= 18
+
+
+
+eliza = Person("Eliza", date(2010, 5, 15), "Arch Linux")
+print(f"{eliza.name} is adult: {eliza.is_adult()}")
+
+sara = Person("Sara", date(1995, 12, 20), "macOS")
+print(f"{sara.name} is adult: {sara.is_adult()}")