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Sunday, October 18, 2020

Solution Exercise 52 : python code to transform given a string into uppercase
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Exercise 52

Using Exercise 51, create a python program as a function which takes as a parameter a string s and which returns the same string in uppercase without using the upper() method. You can use the chr() and ord() methods.

Solution

def toUppercase(s):
    # by using the exercise 51 we can obtain the lists of all upercase characters and lowercase characters:
    uppercase_characters = [chr(i) for i in range(65 , 91)]
    lowercase_characters =  [chr(i) for i in range(97 , 122)]
    # then we can obtain a uppercase charcter from lowercase character by by subtracting 32 to its ascii code
    
    # initializing the searched string
    s_upper = ""
    for x in s:
        if x in lowercase_characters:
            x = chr(ord(x) -32)
            s_upper = s_upper + x
        else:
            s_upper = s_upper + x
            
    return s_upper
print(toUppercase("Python Programming"))
# The output is : PYTHON PROGRAMMING


Younes Derfoufi
my-courses.net

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