ch06

ch06/oop/class.init.py

@@ -0,0 +1,23 @@
+# oop/class.init.py
+class Rectangle:
+    def __init__(self, side_a, side_b):
+        self.side_a = side_a
+        self.side_b = side_b
+
+    def area(self):
+        return self.side_a * self.side_b
+
+r1 = Rectangle(10, 4)
+print(r1.side_a, r1.side_b)  # 10 4
+print(r1.area())  # 40
+
+r2 = Rectangle(7, 3)
+print(r2.area())  # 21
+
+
+"""
+$ python class.init.py
+10 4
+40
+21
+"""