diff --git a/README.md b/README.md
index df3297e..6b9a953 100644
--- a/README.md
+++ b/README.md
@@ -167,11 +167,3 @@ print("cetak perulangan kelipatan 5 yang < 50 :  ")
 for i in range(5,50,+5):
     print(i)
 ```
-
-### Perulangan While
-```python
-i = 0
-while i < 10:
-    print("*_* " + " -_-")
-    i=i+1
-```
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diff --git a/encapsulation_oop.py b/encapsulation_oop.py
new file mode 100644
index 0000000..1e25054
--- /dev/null
+++ b/encapsulation_oop.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Wed Nov 20 21:22:28 2019
+
+@author: DELL
+"""
+class Computer:
+    def  __init__(self):
+        self._maxprice=900
+        
+    def sell(self):
+      print("Selling price: {}".format(self._maxprice))
+    
+    def setMaxPrice(self,price):
+        self._maxprice=price
+        
+c= Computer()
+c.sell()
+
+# Change The Price 
+c._maxprice=1000
+c.sell()
+
+#Using Setter Function
+c.setMaxPrice(1500)
+c.sell()
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diff --git a/inheritance_oop.py b/inheritance_oop.py
new file mode 100644
index 0000000..2366135
--- /dev/null
+++ b/inheritance_oop.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Wed Nov 20 21:36:14 2019
+
+@author: DELL
+"""
+#Parent class
+
+class bird:
+    def  __init__(self):
+        print("Bird Is ready ")
+        
+    def whoisthis (self):
+        print("Bird")
+        
+    def swim(self):
+        print("Swim Faster")
+        
+#Child Class
+        
+class Penguin(bird):
+    def  __init__ (self):
+        super(). __init__()
+        print("Penguin is Ready")
+        
+    def whoisthis(self):
+        print("Penguin")
+        
+    def run(self):
+        print("Run Faster")
+
+imam=Penguin()
+imam.whoisthis()
+imam.swim()
+imam.run()
+    
\ No newline at end of file
diff --git a/method_oop.py b/method_oop.py
new file mode 100644
index 0000000..cea0858
--- /dev/null
+++ b/method_oop.py
@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Wed Nov 20 21:43:46 2019
+
+@author: DELL
+"""
+class Employee:
+    'common base class for all emplyes'
+    empCount =0
+    
+    def  __init__(self,name,salary):
+        self.name =name
+        self.salary=salary
+        Employee.empCount+=1
+        
+    def displaycount(self):
+        print("Total Employee %d "%Employee.empCount)
+        
+    def displayemployee(self):
+        print("name :",self.name,",salary :",self.salary)
+
+emp1=Employee("meng",1000000)
+emp=Employee("yogi",2000000)
+emp.displaycount()
+emp.displayemployee()
+emp1.displayemployee()
+Employee.empCount
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diff --git a/oop1.py b/oop1.py
new file mode 100644
index 0000000..1d19e96
--- /dev/null
+++ b/oop1.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Wed Nov 20 22:24:39 2019
+
+@author: DELL
+"""
+
+class Employee:
+    'common base class for all emplyes'
+    empCount =0
+    def Employee(self):
+        print("Total Employee %d"%Employee.empCount)
+        
+    def  __init__(self,name,salary):
+        print("Constructor created")
+        self.name =name
+        self.salary=salary
+        Employee.empCount+=1
+        
+    def displaycount(self):
+        print("Total Employee %d "%Employee.empCount)
+        
+    def displayemployee(self):
+        print("name :",self.name,",salary :",self.salary)
+"This would create first object employee class"
+emp1=Employee("zara",2000)
+emp1.displayemployee()
+"This would create second object employee class"
+emp2=Employee("yogi",4000)
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diff --git a/overloading_oop.py b/overloading_oop.py
new file mode 100644
index 0000000..0e1071e
--- /dev/null
+++ b/overloading_oop.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Wed Nov 20 22:04:01 2019
+
+@author: DELL
+"""
+
+class A:
+    def  __init__ (self,a):
+        self.a =a
+    # adding two Object
+    def __add__(self,o):
+        return self.a + o.a
+    
+ob1=A(1)
+ob2=A(2)
+ob3=A("geeks")
+ob4=A("For")
+
+print(ob1 + ob2)
+print(ob3 + ob4)
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diff --git a/polymorphism_oop.py b/polymorphism_oop.py
new file mode 100644
index 0000000..e915f76
--- /dev/null
+++ b/polymorphism_oop.py
@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Wed Nov 20 22:11:36 2019
+
+@author: DELL
+"""
+
+class Parrot :
+    def fly(self):
+        print("Parrot can fly ")
+    def swim (self):
+        print("Parrot can't Swim")
+class Penguin:
+    def fly(self):
+        print("Penguin can't fly")
+    def swim(self):
+        print("Penguin can swim")
+        
+#Common Interface
+def flying_test(bird):
+    bird.fly()
+    
+#instance object
+blu=Parrot()
+peggy=Penguin()
+#passing the object
+flying_test(blu)
+flying_test(peggy)
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