Define a class to accept a string and convert it into uppercase. Count and display thenumber of vowels in it.

To define a class that accepts a string, converts it into uppercase, counts the number of vowels, and displays the result, we can follow these steps:

Step 1: Class Definition

We will create a class named StringProcessor with methods to handle the tasks.

Step 2: Initializing the Class

The class will have an initializer that accepts a string and assigns it to an instance variable.

Step 3: Method for Conversion

A method will be defined to convert the string to uppercase.

Step 4: Method for Counting Vowels

Another method will count the vowels in the string.

Step 5: Display the Results

Finally, a method will display the uppercase string and the count of vowels.

Implementation

Here's the code that implements the above steps:

class StringProcessor:
    def __init__(self, input_string):
        self.input_string = input_string
        
    def convert_to_uppercase(self):
        self.uppercase_string = self.input_string.upper()
        
    def count_vowels(self):
        vowels = 'AEIOU'
        self.vowel_count = sum(1 for char in self.uppercase_string if char in vowels)

    def display_results(self):
        print("Uppercase String:", self.uppercase_string)
        print("Number of Vowels:", self.vowel_count)

# Example of usage:
input_string = "Hello World"
processor = StringProcessor(input_string)
processor.convert_to_uppercase()
processor.count_vowels()
processor.display_results()

Explanation

1. Class Initialization: The __init__ method initializes the class with the input string.
2. Uppercase Conversion: convert_to_uppercase converts the string to uppercase using the .upper() method.
3. Vowel Counting: count_vowels iterates through the uppercase string and counts the vowels using a generator expression.
4. Displaying Results: display_results prints out the uppercase string and the number of vowels.

This code accomplishes the task effectively by utilizing class functionalities in Python.