Find the Index of the First Occurrence in a String
As a Systems Engineer at Tata Consultancy Services, I deliver exceptional software products for mobile and web platforms, using agile methodologies and robust quality maintenance. I am experienced in performance testing, automation testing, API testing, and manual testing, with various tools and technologies such as Jmeter, Azure LoadTest, Selenium, Java, OOPS, Maven, TestNG, and Postman.
I have successfully developed and executed detailed test plans, test cases, and scripts for Android and web applications, ensuring high-quality standards and user satisfaction. I have also demonstrated my proficiency in manual REST API testing with Postman, as well as in end-to-end performance and automation testing using Jmeter and selenium with Java, TestNG and Maven. Additionally, I have utilized Azure DevOps for bug tracking and issue management.
Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
LeetCode Problem - 28
class Solution {
// This method finds the starting index of the first occurrence of a substring (needle) within another string (haystack).
public int strStr(String haystack, String needle) {
// Check if the haystack contains the needle.
if (haystack.contains(needle)) {
// If it does, return the starting index of the first occurrence of the needle in the haystack.
return haystack.indexOf(needle);
}
// If the needle is not found in the haystack, return -1.
return -1;
}
}
