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Showing content from https://www.tutorialspoint.com/javaexamples/collection_sublist.htm below:

How to find a sublist in a List using Java

How to find a sublist in a List?

Following example uses indexOfSubList() & lastIndexOfSubList() to check whether the sublist is there in the list or not & to find the last occurance of the sublist in the list.

import java.util.*;

public class Main {
   public static void main(String[] args) {
      List list = Arrays.asList("one Two three Four five six one three Four".split(" "));
      System.out.println("List :"+list);
      
      List sublist = Arrays.asList("three Four".split(" "));
      System.out.println("SubList :"+sublist);
      System.out.println(
         "indexOfSubList: " + Collections.indexOfSubList(list, sublist));
      
      System.out.println(
         "lastIndexOfSubList: " + Collections.lastIndexOfSubList(list, sublist));
   }
}

The above code sample will produce the following result.

List :[one, Two, three, Four, five, six, one, three, Four]
SubList :[three, Four]
indexOfSubList: 2
lastIndexOfSubList: 7

java_collections.htm

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