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ArrayList.size Method

Visual Studio 2005

Provides the number of elements in a ArrayList object.

Package: java.util

Assembly: vjslib (in vjslib.dll)

public int size();

The number of elements in a ArrayList object.

The following example prints the size of an ArrayList object.

// arraylist_size.jsl

import java.util.*;

public class Program
    public static void main(String[] args)
        // Create an ArrayList containing elements 1, 2, 3.
        ArrayList initialArray = new ArrayList();
        initialArray.add(new Integer(1));
        initialArray.add(new Integer(2));
        initialArray.add(new Integer(3));

        // Determine the size of the ArrayList.
        int size = initialArray.size();
        System.out.println("ArrayList contains " + size +
            " elements.");

ArrayList contains 3 elements.