gistfile1.java

import java.util.ArrayList;
import java.util.Random;

/**
 * Created with IntelliJ IDEA.
 * User: john
 * Date: 1/14/13
 * Time: 10:29 AM
 * To change this template use File | Settings | File Templates.
 */
public class Foo {

    static Random random = new Random();

    static int getNum() {
        return random.nextInt();
    }

    public static void main(String[] args) {
        ArrayList<Shape> shapes = new ArrayList<Shape>();
        shapes.add(new Shape("red"));
        shapes.add(new Shape("blue"));
        shapes.add(new Shape("green"));
        shapes.forEach((Shape s) -> s.setNum(getNum()));
        shapes.forEach(Foo::printShape);
        shapes.sort((Shape s1, Shape s2) -> {
            if (s1.getNum() > s2.getNum()) {
                return 1;
            } else if (s1.getNum() < s2.getNum()) {
                return -1;
            } else {
                return 0;
            }
        });
        shapes.forEach(Foo::printShape);
    }

    public static void printShape(Shape s) {
        System.out.println(s.getColor() + ", " + s.getNum());
    }
}