translate array list

import java.util.ArrayList;

public class ListOfPictures
{
    public static void main(String[] args)
    {
        ArrayList gallery = new ArrayList();
        gallery.add(new Picture("degas1.jpg"));
        gallery.add(new Picture("gaugin1.jpg"));
        gallery.add(new Picture("monet1.jpg"));
        gallery.add(new Picture("monet2.jpg"));
        gallery.add(new Picture("renoir1.jpg"));

        for (int i = 0; i < gallery.size(); i++)
        {
            Picture pic = gallery.get(i);
            pic.translate(100 * i, 0);
            pic.draw();
        }
    }
}

fixed it

import java.util.ArrayList;

public class ListOfPictures
{
    public static void main(String[] args)
    {
        ArrayList gallery = new ArrayList();
        gallery.add(new Picture("degas1.jpg"));
        gallery.add(new Picture("gaugin1.jpg"));
        gallery.add(new Picture("monet1.jpg"));
        gallery.add(new Picture("monet2.jpg"));
        gallery.add(new Picture("renoir1.jpg"));

        for(int i = 1; i < gallery.size(); i++)
        {
            Picture pic = gallery.get(i);
            Picture left = gallery.get(i - 1);
            pic.translate(left.MaxX() + 10, 0);
        }
        
        for (int i = 0; i < gallery.size(); i++)
        {
            Picture pic = gallery.get(i);
            pic.draw();
        }
    }
}

Picture old = gallery.get(2);
gallery.set(2, gallery.get(1));
gallery.set(1, old);

Picture pic = gallery.get(1);
gallery.set(2, pic)
gallery.add(0, pic)
gallery.remove(2);

Picture last = gallery.remove(gallery.size() - 1);
gallery.add(0, last);

import java.util.ArrayList;
public class test
{
    public static void main(String[] args)
    {
        ArrayList<String> booksToRead = new ArrayList<String>();

        booksToRead.add("The Eyre Affair by Jasper Fforde");
        booksToRead.add("Night Watch by Terry Pratchett");
        booksToRead.add("Next by Michael Crichton");
        booksToRead.add("The Brain That Changes Itself by Norman Doidge");
        booksToRead.add("Effective Java by Joshua Bloch");
        booksToRead.add("The Visual Display of Quantitative Information by Edward R. Tufte");

        String anotherBook = "Why zebras don't get ulcers by Robert M. Sapolsky";
        booksToRead.add(2, anotherBook);

        System.out.println(booksToRead);
    }
}

using "set" for replace

import java.util.ArrayList;
public class test
{
    public static void main(String[] args)
    {
        ArrayList<String> booksToRead = new ArrayList<String>();

        booksToRead.add("The Eyre Affair by Jasper Fforde");
        booksToRead.add("Night Watch by Terry Pratchett");
        booksToRead.add("Next by Michael Crichton");
        booksToRead.add("The Brain That Changes Itself by Norman Doidge");
        booksToRead.add("Effective Java by Joshua Bloch");
        booksToRead.add("The Visual Display of Quantitative Information by Edward R. Tufte");

        String anotherBook = "Why zebras don't get ulcers by Robert M. Sapolsky";
        booksToRead.add(2, anotherBook);

        String sequel = "Lost in a Good Book by Jasper Fforde";
        booksToRead.set(0, sequel);

        // Please don't modify the following line:
        System.out.println(booksToRead);
    }
}