Summary: Suppose we have 2 strings of n alphabets. Through the below code, we are going to find out whether the second string, i.e. S2 is the rotation of the elements provided in string S1 or not.

Solution:

Explanation:

1. The areRotations method takes two parameters: s1 and s2, representing the two strings to be checked for rotation.

Inside the method:

• It creates a StringBuilder object named temp.

• It appends the first string s1 to temp twice, effectively creating a string that contains all possible rotations of s1.

• It checks if s2 exists within the concatenated string using the lastIndexOf method of StringBuilder. If s2 is not found (lastIndexOf returns -1), it means s2 is not a rotation of s1, so the method returns false.

• If s2 is found within the concatenated string, it means s2 is a rotation of s1, so the method returns true.

2. The class Solution encapsulates this functionality, allowing users to check if two strings are rotations of each other using the areRotations method.

Answered by: >dip20sur

Credit: >GeekforGeeks

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