Question 49: Write a Python program to create a class to print an integer and a character with two methods having the same name but different sequence of the integer and the character parameters. For example, if the parameters of the first method are of the form (int n, char c), then that of the second method will be of the form (char c, int n). Download hole Program / Project code, by clicking following link: State the difference between method overriding and overloading ?Here's a comparison table outlining the key differences between method overriding and method overloading in Python: Aspect Method Overriding Method Overloading Definition Occurs when a subclass provides a specific implementation of a method that is already defined in its superclass. Occurs when multiple methods in the same class or subclass have the same name but different parameters. Inheritance Involves a parent-child relationship, where the subclass inherits the method from the superclass. Is not dependent on inheritance and can be used within a single class or a subclass. Signature In method overriding, the method in the subclass must have the same name, return type, and parameters as the method in the superclass. In method overloading, methods with the same name must have a different number or type of parameters (distinct signatures). Purpose Used to provide a specific implementation of a method in the subclass, which may be different from the implementation in the superclass. Used to define multiple methods with the same name for various scenarios or input parameter combinations. Dynamic Polymorphism Occurs at runtime and is associated with dynamic method dispatch, allowing the choice of the method implementation to be determined at runtime. Decided at compile time based on the method's parameters, and the appropriate method is selected during compilation. Example class Parent: def show(self): print("Parent's show method") class Child(Parent): def show(self): print("Child's show method") child = Child() child.show() # Calls Child's show method
class MyClass: def show(self, x=None, y=None): if x is not None and y is not None: print("Two arguments provided") elif x is not None: print("One argument provided") else: print("No arguments provided") obj = MyClass() obj.show() # Calls the appropriate method based on the number of arguments provided
Method overriding is primarily used in the context of inheritance, where a subclass provides its own implementation of a method defined in its superclass. Method overloading, on the other hand, is used to define multiple methods with the same name but different parameter lists to handle various input scenarios. Both techniques contribute to the flexibility and extensibility of code in Python. Programming Code: Following code write in: BP_P49.py # Python Program
# Methods having same name but different sequence of parameters
# Define Class
class Display():
# Define Methods
def output(self, n = int, c = chr):
print(n, "\t", c)
def output(self, c = chr, n = int):
print(c, "\t", n)
# Creating class instance
dsp = Display()
# Call the Methods
dsp.output(15, "Programming Skills")
dsp.output("Programming Skills", 10)
print("----------------------------------------------")
# Actually Python does not support Method Overloading
# Thanks for Reading.
Output:
Aspect | Method Overriding | Method Overloading |
---|---|---|
Definition | Occurs when a subclass provides a specific implementation of a method that is already defined in its superclass. | Occurs when multiple methods in the same class or subclass have the same name but different parameters. |
Inheritance | Involves a parent-child relationship, where the subclass inherits the method from the superclass. | Is not dependent on inheritance and can be used within a single class or a subclass. |
Signature | In method overriding, the method in the subclass must have the same name, return type, and parameters as the method in the superclass. | In method overloading, methods with the same name must have a different number or type of parameters (distinct signatures). |
Purpose | Used to provide a specific implementation of a method in the subclass, which may be different from the implementation in the superclass. | Used to define multiple methods with the same name for various scenarios or input parameter combinations. |
Dynamic Polymorphism | Occurs at runtime and is associated with dynamic method dispatch, allowing the choice of the method implementation to be determined at runtime. | Decided at compile time based on the method's parameters, and the appropriate method is selected during compilation. |
Example | class Parent: def show(self): print("Parent's show method") class Child(Parent): def show(self): print("Child's show method") child = Child() child.show() # Calls Child's show method | class MyClass: def show(self, x=None, y=None): if x is not None and y is not None: print("Two arguments provided") elif x is not None: print("One argument provided") else: print("No arguments provided") obj = MyClass() obj.show() # Calls the appropriate method based on the number of arguments provided |
# Python Program # Methods having same name but different sequence of parameters # Define Class class Display(): # Define Methods def output(self, n = int, c = chr): print(n, "\t", c) def output(self, c = chr, n = int): print(c, "\t", n) # Creating class instance dsp = Display() # Call the Methods dsp.output(15, "Programming Skills") dsp.output("Programming Skills", 10) print("----------------------------------------------") # Actually Python does not support Method Overloading # Thanks for Reading.
Output:
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