“Programm zur Demonstration der Kapselung in Python” Code-Antworten

Programm zur Demonstration der Kapselung in Python

# Python program to
# demonstrate protected members
 
# Creating a base class
class Base:
    def __init__(self):
 
        # Protected member
        self._a = 2
 
# Creating a derived class
class Derived(Base):
    def __init__(self):
 
        # Calling constructor of
        # Base class
        Base.__init__(self)
        print("Calling protected member of base class: ",
              self._a)
 
        # Modify the protected variable:
        self._a = 3
        print("Calling modified protected member outside class: ",
              self._a)
 
 
obj1 = Derived()
 
obj2 = Base()
 
# Calling protected member
# Can be accessed but should not be done due to convention
print("Accessing protedted member of obj1: ", obj1._a)
 
# Accessing the protected variable outside
print("Accessing protedted member of obj2: ", obj2._a)
mathiasgodwin

Programm zur Demonstration der Kapselung in Python

# Python program to
# demonstrate private members
 
# Creating a Base class
 
 
class Base:
    def __init__(self):
        self.a = "GeeksforGeeks"
        self.__c = "GeeksforGeeks"
 
# Creating a derived class
class Derived(Base):
    def __init__(self):
 
        # Calling constructor of
        # Base class
        Base.__init__(self)
        print("Calling private member of base class: ")
        print(self.__c)
 
 
# Driver code
obj1 = Base()
print(obj1.a)
 
# Uncommenting print(obj1.c) will
# raise an AttributeError
 
# Uncommenting obj2 = Derived() will
# also raise an AtrributeError as
# private member of base class
# is called inside derived class
mathiasgodwin

Programm zur Demonstration der Kapselung in Python

# illustrating public members & public access modifier 
class pub_mod:
    # constructor
    def __init__(self, name, age):
        self.name = name;
        self.age = age;
 
    def Age(self): 
        # accessing public data member 
        print("Age: ", self.age)
# creating object 
obj = pub_mod("Jason", 35);
# accessing public data member 
print("Name: ", obj.name)  
# calling public member function of the class 
obj.Age()
codelearner

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