About the List Interface in Java

The List interface in Java is from java.util package and the interface name is java.util.List, which is a child interface of Collection in Java programming language.

The List in Java is an ordered collection of objects, which means it preserve the order of insertion. The List in java allows the storing of duplicate values.

The List preserves the insertion order and it can be used for the positional access and insertion of elements.

In Java programming the List Interface is implemented by ArrayList, LinkedList, Vector and Stack.

So, if you are using any of the above List in your program then no need to worry as it preserver the order of insertion.

Thanks

Hi,

Yes List is ordered in Java. The implementation of List interfaces are ArrayList, LinkedList, Vector and Stack, which provides order access of data.

The values added to List preserves the order of insertion.

Thanks

Hi,

This is sample example:

package example.code;

import java.util.ArrayList;
import java.util.List;

public class OrderedListExample {

    public static void main(String[] args) {
        //Create Array List object
        List list = new ArrayList();
        //Add 10 Values
        for(int i=0;i<10;i++){
            list.add(i);
        }

        //print the values stored in List
        for(int i=0;i<10;i++){
            System.out.println(list.get(i));
        }       
/*
Program Output:
0
1
2
3
4
5
6
7
8
9
 */
    }
}

Thanks