import java.util.*;
import java.awt.*;

/**
 * Write a description of class RectangleData here.
 * 
 * @
 * @
 */
public class RectangleData
{
    public static void main(String[] args)
    {
        Rectangle r1 = new Rectangle(10, 10, 2, 4);
        Rectangle r2 = new Rectangle(12, 15, 5, 6);
        Rectangle r3 = new Rectangle(20, 20, 10, 15);
        Rectangle r4 = new Rectangle(30, 20, 10, 5);
        Rectangle r5 = new Rectangle(20, 15, 12, 10);
        Rectangle r6 = new Rectangle(15, 10, 5, 5);
        
        ArrayList<Rectangle> bigRectangle = new ArrayList<Rectangle>();
        
        bigRectangle.add(r1);
        bigRectangle.add(r2);
        bigRectangle.add(r3);
        bigRectangle.add(r4);
        bigRectangle.add(r5);
        bigRectangle.add(r6);
        
        
        int n = bigRectangle.size();
        for(int i = 0; i < n; i++)
        {
            System.out.println(bigRectangle);
        }
        
        class CompareRectangle implements Comparator<Rectangle>
        {
            public int compare();
    }
    
}


This is what my inner class is looking like


        class RectangleComparison implements Comparator<Rectangle>
        {
            public boolean result(Rectangle rect1, Rectangle rect2)
            {
                return compare(rect1.getHight(), rect2.getHight());
            }
        }
        
         if(RectangleComparison.result = -1)
                system.out.println("Rectangle one is shorter then rectangle two.");
         else if(RectangleComparison.result = 1)
                system.out.println("Rectangle one is taller then rectangle two.");
         else
                system.out.println("Both rectangles share the same height");
    }