Simple Java Solution for the Leetcode question : 28. Find the Index of the First Occurrence in a String

Java Solution for Leetcode question 28. Find the Index of the First Occurrence in a String

Question : 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.

Solution : We are going to use indexOf()  method to solve this problem. 

• indexOf(String str) method : 

  Returns the index within this string of the first occurrence of the specified substring.

  
  

• class Solution {

  public int strStr(String haystack, String needle) {

  return haystack.indexOf(needle);

  }

  }

  
  

  

  
  

  
  

  It beasts 100%.

  
  

Happy Coding :)

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Create your first REST API in just 5 steps.

Today we are going to see how to create your first REST API in just 5 steps.

Before starting this article let's take go through the prerequisites.

Prerequisites : 

• Familiarity with Java Programming language.
• Any IDE, for this example I'll be using IntelliJ IDEA CE.
• Web Browser and Internet connection.
• We are good to start.

Let's go and Create our first endpoint. Just follow along and you will be able to create your endpoint within few minutes. 

1. Step 1 : Open your favourite browser and navigate to https://start.spring.io/