Python - Uppercase Half String

Python – Uppercase Half String

Last Updated : 05 Sep, 2020

Given a String, perform uppercase of later part of string.

Input : test_str = ‘geeksforgeek’
Output : geeksfORGEEK
Explanation : Latter half of string is uppercased.
Input : test_str = ‘apples’
Output : appLES
Explanation : Latter half of string is uppercased.

Method #1 : Using upper() + loop + len()

In this, we compute the half index, and then perform upper() to only those characters which lie in other half of string.

Python3

# Python3 code to demonstrate working of 
# Uppercase Half String
# Using upper() + loop + len()
  
# initializing string
test_str = 'geeksforgeeks'
  
# printing original string
print("The original string is : " + str(test_str))
  
# computing half index
hlf_idx = len(test_str) // 2
  
res = ''
for idx in range(len(test_str)):
      
    # uppercasing later half
    if idx >= hlf_idx:
      res += test_str[idx].upper()
    else :
      res += test_str[idx]
          
# printing result 
print("The resultant string : " + str(res)) 

Output

The original string is : geeksforgeeks
The resultant string : geeksfORGEEKS

Method #2 : Using list comprehension + join() + upper()

This is similar to above method, just the task is performed in shorthand manner using list comprehension.

Python3

# Python3 code to demonstrate working of 
# Uppercase Half String
# Using list comprehension + join() + upper()
  
# initializing string
test_str = 'geeksforgeeks'
  
# printing original string
print("The original string is : " + str(test_str))
  
# computing half index
hlf_idx = len(test_str) // 2
  
# join() used to create result string 
res = ''.join([test_str[idx].upper() if idx >= hlf_idx else test_str[idx]
         for idx in range(len(test_str)) ])
          
# printing result 
print("The resultant string : " + str(res)) 

Output

The original string is : geeksforgeeks
The resultant string : geeksfORGEEKS

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course

My Personal Notes

Related Articles

Python3

Python3