import javax.swing.JOptionPane;

public class CalculateArea
{
    public static void main(String[] args)
    {
        final int COST_PSF = 8;       // Cost of $5 per square foot
        final int INSTALL_FEE = 500;  // $500 installation fee

        String input;
        int length;
        int width;
        int area;
        int totalCost;

        input = JOptionPane.showInputDialog("Input length:");
        length = Integer.parseInt(input);

        input = JOptionPane.showInputDialog("Input width:");
        width = Integer.parseInt(input);

        area = length * width;
        totalCost = (area * COST_PSF) + INSTALL_FEE;

        System.out.println("Total area: " + area + " square feet");
        System.out.println("Total cost: $" + totalCost);
    }
}