Program to find smallest substring in between specified character or string in Java

package com.javainhouse; import java.util.HashSet; import java.util.LinkedList; import java.util.List; import java.util.Set; public class findSmallestSubstring { public static void main(String[] args) { String test="i am rajesh kumar attapattu"; String stest=test.substring(test.indexOf("a")+1, test.lastIndexOf("a")); System.out.println(stest); String arr[]=stest.split("a"); String smallestsubString=arr[0]; int minimumLength=arr[0].length(); for (int i = 0; i < arr.length; i++) { if(arr[i].length() < minimumLength) { minimumLength=arr[i].length(); smallestsubString=arr[i]; } } System.out.println("Smallest string between a is "+smallestsubString); } }

OutPut: 

Smallest SubString