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Sunday, 10 May 2015

How to count number of element in ArrayList

Size() Method return number of element in the arraylist.

import java.util.ArrayList;

public class CountElement {

    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);

        /*
         * Returns the number of elements in this list.
         */

        System.out.println(" size = "+arr.size());

    }

}

Output:

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

 size = 6


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