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Python Program to Reverse a String
This article covers multiple programs in Python that find and prints the reverse of a string, entered by user at run-time of the program. Here are the list of programs covered in this article:
- Reverse a string in Python
- Reverse a string in Python using for loop
- Reverse a string in Python using user-defined function
- Reverse a string in Python using recursion
Python Reverse a String
The question is, write a Python program to find and print the reverse of a given string. The program given below is its answer:
print("Enter the String: ", end="") str = input() strRev = str[::-1] str = strRev print("\nReverse =", str)
The snapshot given below shows the sample run of above Python program, with user input codescracker as string to find and print its reverse:
Here is another sample run with user input codes cracker dot com:
Python Reverse a String using for Loop
This program does the same job as of previous program. But this program is created using for loop.
print("Enter the String: ", end="") str = input() strRev = "" for ch in str: strRev = ch + strRev str = strRev print("\nReverse =", str)
Here is its sample run with user input, Welcome to Python:
Reverse a String using Function
Here is another program in Python, that find and print the reverse of a given string, using a user-defined function named revStr():
def revStr(s): sReverse = s[::-1] return sReverse print("Enter the String: ", end="") str = input() str = revStr(str) print("\nReverse =", str)
You'll get the similar output as of previous program.
Reverse a String using Recursion
This is the last program of this article, created using recursive function or recursion to reverse a string.
def revStr(s): if len(s) == 0: return s else: return revStr(s[1:]) + s[0] print("Enter the String: ", end="") mystr = input() mystr = revStr(mystr) print("\nReverse =", mystr)
Same Program in Other Languages
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