Add teacher_class to solution

Author: Citrus716

2_intermediate/chapter12/solutions/teacher_class.py

@@ -0,0 +1,37 @@
+# Create a class called Teacher. Add 3 variables to this
+# class: Name, Age, and an array of Student classes from student_class.
+# The user can input these 3 variables. Add 2 Methods to the class: A
+# displayClass method that prints out the names of all the students.
+# A graduate method that increments the age of all of his/her students by 1.
+# Then prints out all the ages.
+
+# Student class implemented below. Teacher class uses it.
+
+class Student:
+
+    def __init__(self, name, age):
+        self.name = name
+        self.age = age
+
+    def raiseHand(self):
+        print(self.name + " is now raising their hand.")
+
+    def growOlder(self):
+        self.age += 1
+        
+class Teacher:
+
+    def __init__(self, name, age, students):
+        self.name = name
+        self.age = age
+        self.students = students
+
+    def displayClass(self):
+        for student in self.students:
+            print(student.name)
+
+    def graduate(self):
+        for student in self.students:
+            student.age += 1
+            print(student.age)
+