Count Occurrences Of Character In String Python
Last Updated : Mar 11, 2024
In this article we will show you the solution of count occurrences of character in string python, the aim is to determine how often a particular character appears in a given string.
Many applications, including deleting duplicates and identifying undesirable characters, benefit from this particular function on strings.
Using Python's built-in string.count() method is one of the predefined ways to count a number of instances in a string.
The function takes the number of times particular character appears in the string linked to the method for one parameter, which can be either a character or even a substring.
Go on to the idea of counting the number of times a character appears in a string in Python.
Step By Step Guide On Count Occurrences Of Character In String Python :-
Method - Naive
test_str = "Talkerscode" count = 0 for i in test_str: if i == 'e': count = count + 1 print ("Count of e in Talkerscode is : " + str(count))
- You can see that we created a Python programme in this case to show how the naive method can be used to determine occurrence frequency.
- Users are able to observe that we initialise the string referred to as Talkerscode at the beginning of the code.
- To obtain the character e's count from the existing string, we then employ a naive technique.
- You can iterate through the full string looking for that specific character through the for loop naive technique.
- after which, when we come across the specific character, raise the counter.
- Finally, using Python's print function, we output the results, which represent the character count.
Method - collections.Counter()
from collections import Counter test_str = "Talkerscode" count = Counter(test_str) print ("Count of e in Talkerscode is : "+ str(count['e']))
- You can see that we wrote the Python code in this example to use collections to show how to calculate occurrence collections.Counter().
- We import the counter package from the collections at the beginning of the code.
- Key-value pairs can be counted in an object, often known as a hashtable object, to use the Python Counter tool.
- The values for the count and the keys are represented by the items in this sentence. An iterable list's items can be counted using this method.
- Next, we use the collections after initialising the Talkerscode string.
- To determine the character count, use Counter().
- The use of collections.counter(), the less well-known Python method for determining how often an element appears in any container.
- This also does the same purpose as the first two methods, but it works with a different library, namely collections.
- As a last step, we use Python's print function to show the output in result form, which is the count of characters that are now present in the string.
Conclusion :-
So, we were able to understand the idea of counting the occurrences of a character in a string of Python.
We also discovered that the goal is to ascertain how frequently a specific character appears in such a given string.
This particular function on strings has many uses, such as removing duplicates and identifying undesired characters.
I hope this article on count occurrences of character in string python helps you and the steps and method mentioned above are easy to follow and implement.