package collections;

import java.util.ArrayList;

import java.util.List;

public class ListEx1 {

public static void main(String[] args) {

//way to create list using implementing class called ArrayList

/*

* characteristics:

* 1.it follow insertion order

* 2.it allow duplicate

* 3.list follow indexing means with the help of index we can perform any operation an list

* a)add,remove,search,update*/

List<Integer> list=new ArrayList<Integer>();

list.add(10);

list.add(20);

list.add(3);

list.add(34);

list.add(12);

list.add(23);

//add with the help of index value

list.add(3, 45);

list.remove(2);//remove with the help of index value.

//there is one more constructor which accept another collection.

List<Integer> list1=new ArrayList<Integer>(list);

list1.add(25);

list1.add(78);

list.addAll(list1);//with the help of this method we can add collection into another collection.

System.out.println(list1);//if we try to print reference that time toString() method get automatically invoke.

}

}