Python Exercise: Reverse a string
Python Functions: Exercise-4 with Solution
Write a Python program to reverse a string.
Sample String: "1234abcd"
Expected Output: "dcba4321"
Sample Solution-1:
Python Code:
def string_reverse(str1):
rstr1 = ''
index = len(str1)
while index > 0:
rstr1 += str1[ index - 1 ]
index = index - 1
return rstr1
print(string_reverse('1234abcd'))
Sample Output:
dcba4321
Pictorial presentation:
Flowchart:

Visualize Python code execution:
The following tool visualize what the computer is doing step-by-step as it executes the said program:
Sample Solution-2:
Python Code:
def reverse(itr):
return itr[::-1]
str1 = '1234abcd'
print("Original string:",str1)
print("Reverse strig:",reverse('1234abcd'))
str1 = 'reverse'
print("\nOriginal string:",str1)
print("Reverse strig:",reverse(str1))
Sample Output:
Original string: 1234abcd Reverse strig: dcba4321 Original string: reverse Reverse strig: esrever
Flowchart:

Visualize Python code execution:
The following tool visualize what the computer is doing step-by-step as it executes the said program:
Python Code Editor:
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Python: Tips of the Day
Decapitalizes the first letter of a string:
Example:
def tips_decapitalize(s, upper_rest=False): return s[:1].lower() + (s[1:].upper() if upper_rest else s[1:]) print(tips_decapitalize('PythonTips')) print(tips_decapitalize('PythonTips', True))
Output:
pythonTips pYTHONTIPS
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