10.

public class DiscountBill extends GroceryBill
	{

    private boolean preferred;
    private int numDiscountedItems;
    private double discountAmount;
    private double total;
    private double discountPercent;

    public DiscountBill(Employee name, boolean pref)
	{
        super(name);
        preferred = pref;
    }

    public int getDiscountCount()
		{
        for(int i = 0; i < itemsInGroceryList.size(); i++)
			{
            if(itemsInGroceryList.get(i).getDiscount() > 0)
			{
                numDiscountedItems++;
            }
        }
        return numDiscountedItems;
    }

    public double getDiscountAmount()
		{

        for(int i = 0; i < itemsInGroceryList.size(); i++)
			{
            if(itemsInGroceryList.get(i).getDiscount() > 0)
			{
                discountAmount = discountAmount + itemsInGroceryList.get(i).getDiscount();
            }
        }
        return discountAmount;
    }

    public double getTotal()
		 {
        if(isPreferredShopper == true)
		{
            total = super.getTotal() - discountAmount;
            return total;
        }
        else{
            total = super.getTotal();
            return total;
        }
    }

    public double getDiscountPercent(){
        discountPercent = (1 - (total/super.getTotal())) * 100;
        return discountPercent;
    }
}


15.

Public class Octagon implements Shape
{
    private double length;

    public Rectangle(double iniLength)
    {
        length = iniLength;
    }
    public double getArea()
    {
        return 2*(1+Math.sqrt(2))*length*length;
    }
    public double getPerimeter()
    {
        return 8*length;
    }
}



14.

Public boolean Equals(Rectangle A)
{
    if (width = A.width && height  = A.height)
    {
        return true;
    }
    else
    {
        return false;
    }
}

Public boolean Equals(Circle A)
{
    if (radius  = A.radius)
    {
        return true;
    }
    else
    {
        return false;
    }
}
Public boolean Equals(Triangle pass)
{
    if (a = pass.a && b = pass.b && c = pass.c)
    {
        return true;
    }
    else
    {
        return false;
    }
}



13.

Public boolean Equals(Cash A)
{
    if (amount = A.amount)
    {
        return true;
    }
    else
    {
        return false;
    }
}