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Reverse String

String Easy 17 views
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Ever wanted to flip a word backwards just to see how it looks? In the world of string manipulation, we call this Reverse String! You’re given a string s, and your task is to produce a brand-new string that mirrors the original character order. The first character becomes the last, and the last becomes the first!

The "secret sauce" here is Character Orientation. While most languages have built-in methods for this, the core logic involves reordering the sequence such that the final character becomes the initial one. Think of it like a mirror reflection: the exact character set and casing stay the same, but the chronological order is inverted. This process is essential for tasks like checking for palindromes or performing structural transformations.

This challenge is a great way to master basic string indexing and loops. It’s a simple but effective exercise that builds the foundation for more complex text-processing tasks!

For text and token tasks, be precise with index movement and substring boundaries. Most hidden failures come from partial-match handling and boundary cuts, so keep comparisons explicit and avoid assumptions about implicit separators or formatting not guaranteed by the input contract.

Examples

Example 1
Input
s = "hello"
Output
"olleh"
Explanation

Example 1: Reverse "hello" to "olleh"

Example 2
Input
s = "world"
Output
"dlrow"
Explanation

Example 2: Reverse "world" to "dlrow"

Example 3
Input
s = "abc"
Output
"cba"
Explanation

Example 3: Reverse "abc" to "cba"

Algorithm Flow

Recommendation Algorithm Flow for Reverse String - Budibadu
Recommendation Algorithm Flow for Reverse String - Budibadu

Best Answers

java
class Solution {
    public String reverse_string(String s) {
        return new StringBuilder(s).reverse().toString();
    }
}