import weiss.util.Comparator;

class OrderRectByArea implements Comparator<SimpleRectangle>
{
    public int compare( SimpleRectangle r1, SimpleRectangle r2 )
    {
        return r1.getWidth( ) * r1.getLength( )
             - r2.getWidth( ) * r2.getLength( );
    }
}

class OrderRectByWidth implements Comparator<SimpleRectangle>
{
    public int compare( SimpleRectangle r1, SimpleRectangle r2 )
    {
        return( r1.getWidth() - r2.getWidth() );
    }
}

public class CompareTest
{
    public static <AnyType> AnyType findMax( AnyType [ ] a, Comparator<? super AnyType> cmp )
    {
        int maxIndex = 0;
        for( int i = 1; i < a.length; i++ )
            if( cmp.compare( a[ i ], a[ maxIndex ] ) > 0 )
                maxIndex = i;
        
        return a[ maxIndex ];
    }
    
    public static void main( String [ ] args )
    {
        SimpleRectangle [ ] rects = new SimpleRectangle[ 4 ];
        rects[ 0 ] = new SimpleRectangle( 1, 10 );
        rects[ 1 ] = new SimpleRectangle( 20, 1 );
        rects[ 2 ] = new SimpleRectangle( 4, 6 );
        rects[ 3 ] = new SimpleRectangle( 5, 5 );
    
        System.out.println( "MAX WIDTH: " + findMax( rects, new OrderRectByWidth( ) ) );
        System.out.println( "MAX AREA: " + findMax( rects, new OrderRectByArea( ) ) );
    }
}
