Click here to watch in Youtube : https://www.youtube.com/watch?v=xBR-LB8CfgE
ArrayListAddIndexBasedExample.java
import java.util.ArrayList; /* * Example of add(int index, E element) method */ public class ArrayListAddIndexBasedExample { public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("Ram"); arrayList.add("Dave"); arrayList.add("Peter"); System.out.println("ArrayList : " + arrayList); /* * In Position 2 adding "Stephan" */ arrayList.add(2, "Stephan"); System.out.println("ArrayList : " + arrayList); } }
ArrayList : [Ram, Dave, Peter] ArrayList : [Ram, Dave, Stephan, Peter]
ArrayListAddAllIndexBasedExample.java
import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Set; /* * Example of addAll(int index, Collection<? extends E> c) method */ public class ArrayListAddAllIndexBasedExample { public static void main(String[] args) { List<String> list = new ArrayList<String>(); list.add("Ram"); list.add("Dave"); list.add("Peter"); System.out.println("List : " + list); Set<String> set = new HashSet<String>(); set.add("Julia"); set.add("Akram"); System.out.println("Set : " + set); /* * In Position 1 adding Set collection elements to the list collection */ list.addAll(1, set); System.out.println("List : " + list); } }
List : [Ram, Dave, Peter] Set : [Julia, Akram] List : [Ram, Julia, Akram, Dave, Peter]
To Download ArrayListDemoAddIndex Project Click the below link
https://sites.google.com/site/javaee4321/java-collections/ArrayListDemoAddIndex.zip?attredirects=0&d=1
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