java.util.Collections.lastIndexOfSubList() Method

Advertisements


Description

The lastIndexOfSubList(List<?>, List<?>) method is used to get the starting position of the last occurrence of the specified target list within the specified source list.

Declaration

Following is the declaration for java.util.Collections.lastIndexOfSubList() method.

public static int lastIndexOfSubList(List<?> source, List<?> target)

Parameters

  • source--This is the list in which to search for the last occurrence of target.

  • target--This is the list to search for as a subList of source.

Return Value

The method call returns the starting position of the last occurrence of the specified target list within the specified source list, or -1 if there is no such occurrence.

Exception

  • NA

Example

The following example shows the usage of java.util.Collections.lastIndexOfSubList()

package com.tutorialspoint;

import java.util.*;

public class CollectionsDemo {
   public static void main(String args[]) {
      // create two array list objects       
      List arrlistsrc = new ArrayList();
      List arrlisttarget = new ArrayList();
      
      // populate two lists
      arrlistsrc.add("A");
      arrlistsrc.add("B");
      arrlistsrc.add("C");
      arrlistsrc.add("D");
      arrlistsrc.add("E"); 
      
      arrlisttarget.add("C");
      arrlisttarget.add("D");
      arrlisttarget.add("E");
           
      // check starting position of the last occurrenc
      int index = Collections.lastIndexOfSubList(arrlistsrc, arrlisttarget);
      
      System.out.println("Starting position is: "+index);    
   }    
}

Let us compile and run the above program, this will produce the following result.

Starting position is: 2



Advertisements
Advertisements