How to insert element in arraylist

we can insert element in arraylist at a given index.for this we use add(int index,element).

import java.util.ArrayList;

public class AddElement {

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”);
arr.add(“delhi”);
arr.add(“INDIA”);

// print arraylist

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

/*
* Inserts the specified element at the
* specified position in this list
* . Shifts the element currently at that position
* (if any) and any subsequent elements to the right
*/

arr.add(1,”javascript”);

// print arraylist

System.out.println(“after insert arrayList is = ” + arr);

}
}

Output:

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

after insert arrayList is = [c, javascript, php, html, java, delhi, INDIA]

 

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