Merge pull request #92 from beladiyadarshan/exercise_16_26

Added : exercises for 16 to 26

Author: groverkds

.gitignore

@@ -3,4 +3,5 @@
 **/.idea/
 .ipynb_checkpoints/
 **/.ipynb_checkpoints/
-**/.cache/
+**/.cache/
+.vscode

Basics/Hindi/16_class_and_objects/16_class_and_object_exercise.md

@@ -0,0 +1,22 @@
+## Exercise: Class and Objects
+
+1. Create a sample class named Employee with two attributes id and name 
+
+```
+employee :
+    id
+    name
+```
+object initializes id and name dynamically for every Employee object created.
+ 
+```
+emp = Employee(1, "coder")
+```
+
+2. Use del property to first delete id attribute and then the entire object
+
+
+[Solution](https://github.com/codebasics/py/blob/master/Basics/python_basics/16_class_and_objects/16_class_and_objects.py)
+
+
+

Basics/Hindi/16_class_and_objects/16_class_and_objects.py

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+class Employee:
+
+    def __init__(self, id, name):
+        self.id = id
+        self.name = name
+
+    def display(self):
+        print(f"ID: {self.id} \nName: {self.name}")
+
+
+# Creating a emp instance of Employee class
+emp = Employee(1, "coder")
+
+emp.display()
+# Deleting the property of object
+del emp.id
+# Deleting the object itself
+try:
+    print(emp.id)
+except NameError:
+    print("emp.id is not defined")
+
+del emp
+try:
+    emp.display()  # it will gives error after deleting emp
+except NameError:
+    print("emp is not defined")

Basics/Hindi/17_inheritance/17_inheritance.md

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+## Exercise: Inheritance
+
+1. create inheritance using animal Dog relation.
+
+
+```
+for example, 
+    Animal and Dog both has same habitat so create a method for habitat 
+```
+
+2. use super() constructor for calling parent constructor.
+
+```
+class Animal:
+    #code
+
+class Dog(Animal):
+    super()-it refers Animal class,now you can call Animal's methods.
+```
+
+[Solution](https://github.com/codebasics/py/blob/master/Basics/python_basics/17_inheritance/17_inheritance.py)
+
+
+

Basics/Hindi/17_inheritance/17_inheritance.py

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+class Animal:
+    def __init__(self, habitat):
+        self.habitat = habitat
+
+    def print_habitat(self):
+        print(self.habitat)
+
+    def sound(self):
+        print("Some Animal Sound")
+
+
+class Dog(Animal):
+    def __init__(self):
+        super().__init__("Kennel")
+
+    def sound(self):
+        print("Woof woof!")
+
+
+x = Dog()
+x.print_habitat()
+x.sound()

Basics/Hindi/18_multiple_inheritance/18_multiple_inheritance.md

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+## Exercise: Multiple Inheritance
+
+Real Life Example :
+1. Create multiple inheritance on teacher,student and youtuber.
+
+
+```
+Q. if we have created teacher and now one student joins master degree with becoming teacher then what??
+
+Ans :  just make subclass from  teacher so that student will become teacher
+```
+
+2. Now student is teacher as well as youtuber then what???
+
+
+```
+-just use multiple inheritance for these three relations
+
+```
+
+
+
+[Solution](https://github.com/codebasics/py/blob/master/Basics/python_basics/18_multiple_inheritance/18_multiple_inheritance.py)
+
+
+

Basics/Hindi/18_multiple_inheritance/18_multiple_inheritance.py

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+class Teacher:
+    def teachers_action(self):
+        print("I can teach")
+
+
+class Engineer:
+    def Engineers_action(self):
+        print("I can code")
+
+
+class Youtuber:
+    def youtubers_action(self):
+        print("I can code and teach")
+
+
+class Person(Teacher, Engineer, Youtuber):
+    pass
+
+
+coder = Person()
+coder.teachers_action()
+coder.Engineers_action()
+coder.youtubers_action()

Basics/Hindi/19_raise_exception_finally/19_raise_exception_finally.md

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+## Exercise: Raise Exception And Finally
+
+1. Create a custom exception AdultException.
+
+2. Create a class Person with attributes name and age in it.
+
+3. Create a function get_minor_age() in the class. It throws an exception if the person is adult otherwise returns age.
+
+4. Create a function display_person() which prints the age and name of a person.
+```
+let us say,
+
+if age>18 
+    he is major
+else
+    raise exception
+
+create cusomException named ismajor and raise it if age<18.
+```
+
+
+
+[Solution](https://github.com/codebasics/py/blob/master/Basics/python_basics/19_raise_exception_finally/19_raise_exception_finally.py)
+
+
+

Basics/Hindi/19_raise_exception_finally/19_raise_exception_finally.py

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+# for making exception just make subclass of Exception
+class AdultException(Exception):
+    pass
+
+
+class Person:
+    def __init__(self, name, age):
+        self.name = name
+        self.age = age
+
+    def get_minor_age(self):
+        if int(self.age) >= 18:
+            raise AdultException
+        else:
+            return self.age
+
+    def display(self):
+        try:
+            print(f"age -> {self.get_minor_age()}")
+        except AdultException:
+            print("Person is an adult")
+        finally:
+            print(f"name -> {self.name}")
+
+
+# No exception
+Person("Bhavin", 17).display()
+
+# AdultException is raised
+Person("Dhaval", 23).display()

Basics/Hindi/20_Iterators/20_Iterators.md

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+## Exercise: Iterators
+
+1. Create an iterator for fibonacci series in such a way that each next returns the next element from fibonacci series.
+2. The iterator should stop when it reaches a `limit` defined in the constructor.
+
+
+
+[Solution](https://github.com/codebasics/py/blob/master/Basics/python_basics/20_Iterators/20_Iterators.py)