Finding the Last Occurrence of a Character in a Python String

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Summary: Learn how to find the last occurrence of a specific character in a Python string using the `rfind()` method. Explore examples and understand how this method differs from the standard `find()` method.
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When working with strings in Python, it's common to search for the position of a specific character. While the find() method helps in locating the first occurrence of a character, what if you need to find the last occurrence? Enter the rfind() method.

The rfind() Method

The rfind() method is a built-in string method in Python that is used to find the highest index of the specified substring or character. It starts the search from the end of the string towards the beginning, providing the index of the last occurrence.

Here's the basic syntax of the rfind() method:

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substring: The substring or character to search for.

start (optional): The starting index of the search.

end (optional): The ending index of the search.

If the substring is found, the method returns the highest index where it occurs. If not found, it returns -1.

Examples

Let's dive into some examples to understand how to use the rfind() method:

Example 1: Finding the Last Occurrence of a Character

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Output:

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Example 2: Specifying Start and End Index

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Output:

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Conclusion

The rfind() method in Python provides a convenient way to locate the last occurrence of a character in a string. By understanding its usage and incorporating it into your code, you can enhance your string manipulation capabilities.

Experiment with different examples to solidify your understanding of this method and consider how it can be applied in your specific use cases.