Synchronized array in JAVA

gistfile1.java

import java.util.ArrayList;


/**
 * Created by bbooshan on 2/3/15.
 */
public class FTSynchronizedArray<T> {

    private ArrayList<T> itemStore;

    public FTSynchronizedArray()
    {
        itemStore = new ArrayList<T>();
    }


    public  synchronized void addItem(T item)
    {
        itemStore.add(item);
    }

    public  synchronized void clearAll()
    {
        itemStore.clear();
    }

    public  synchronized void swapItems(int index1, int index2)
    {
        int totalItems = itemStore.size();
        if( index1 < totalItems && index2 < totalItems)
        {
            T temp = itemStore.get(index1);
            itemStore.set(index1, itemStore.get(index2));
            itemStore.set(index2, temp);
        }
    }

    public synchronized T getItem(int index)
    {
        int totalItems = itemStore.size();
        T item = null;
        if( index < totalItems)
        {
            item =  itemStore.get(index);
        }
        return item;
    }

    public synchronized int totalItems()
    {
        return itemStore.size();
    }
}