ArrayList intro

import java.util.ArrayList;
public class arrayList
{
    public static void main (String args []){
        ArrayList <Integer> myList = new ArrayList <Integer>(10);
        myList.add(199);
        myList.add(4);
        myList.add(100);
        myList.add(555);
        myList.add(40);
        myList.add(49);

        for (Integer x : myList){
            System.out.println(x);

        }

        //size does not indicate the intitial size only the amount of items stored
        System.out.println("size="+myList.size());

        myList.remove(1);

        //size does not indicate the intitial size only the amount of items stored
        System.out.println("size="+myList.size());

        myList.set(1, 50);//myList.set(index, value), changes value of index in the ArrayList

        /* trims the size of the arrayList to how many items are stored
         * if the initial size was 10 but there were 6 items stored the
         * trimToSize method would reduce the initial size to 6.
         * */
        myList.trimToSize();

        myList.clear();//clears the contents of the arrayList
}
}