import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.pureprogrammer.Utils;

public class Lists1 {

	public static void main(String[] args) {
		final int NUM_SQUARES = 5;
		List<Integer> squares = new ArrayList<>();
// Put the squares into the list
		for (int i = 0; i < NUM_SQUARES; ++i) {
			squares.add(i * i);
		}
// Print out the squares from the list
		for (int i = 0; i < squares.size(); ++i) {
			System.out.println(Utils.format("{0:d}^2 = {1:d}", i, squares.get(i)));
		}

		System.out.println(Utils.listToString(squares));
	}
}