How to add all elements of a list to ArrayList

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

public class AddAllElement {

public static void main(String[] args) {

ArrayList<String> arr = new ArrayList<String>();

// add element in arraylist
arr.add(“c”);
arr.add(“php”);
arr.add(“html”);
arr.add(“java”);

// print arraylist
System.out.println(“arrayList is = ” + arr);

List<String> brr = new ArrayList<String>();
brr.add(“one”);
brr.add(“second”);

//Appends all of the elements in the specified collection
//to the end of this list, in the order that they are
//returned by the specified collection’s Iterator.
arr.addAll(brr);

System.out.println(“After AddAll list brr =”+arr);

List<String> linkList = new LinkedList<String>();
linkList.add(“Delhi”);
linkList.add(“Kurukshetra”);

arr.addAll(linkList);

System.out.println(“After AddAll list linklist”+arr);
}

}

Output:

arrayList is = [c, php, html, java]

After AddAll list brr =[c, php, html, java, one, second]

After AddAll list linklist[c, php, html, java, one, second, Delhi, Kurukshetra]

Related Posts: 

 

Storing Java Object In ArrayList

Leave a Reply

Your email address will not be published. Required fields are marked *

40 + = 48