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Java Example - List Sublist Extraction

Java Examples

The following example demonstrates how to use the indexOfSubList() and lastIndexOfSubList() methods of the Collections class to check if a sublist is present in a list and to find the positions of the sublist within the list:

Main.java File

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 output of the above code is:

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

Java Examples

❮ Java Date Time Java Hashtable Class ❯