[cpcs 203 - برمجة 2] لديك سؤال , أفكار , شيء غير مفهوم ,,, تفضل هنا , موضوع مفيد

[SAUDI 2009]

السلام عليكم ورحمة الله وبركاته

حبيت أسال عن فكرة السؤال لأني ما فهمته
Q3. Part (A) Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces of information as instance variables a part number (type String), a part deion (type String), a quantity of the item being purchased (type int) and a price per item (double). Your class should have a constructor that initializes the four instance variables. Provide a set and a get method for each instance variable.

In addition, provide a method named getInvoiceAmount that calculates the invoice amount (i.e., multiplies the quantity by the price per item), then returns the amount as a double value. If the quantity is not positive, it should be set to 0. If the price per item is not positive, it should be set to 0.0.

Part (B) Write a test application named InvoiceTest that demonstrates class

Invoice's capabilities.

وفكرة السؤال الثاني

Q6. Use the concept of looping to draw the following pyramids.

كود PHP:

(a)

1.    Output of the example would be
2.    *
3.    
4.    *
5.    
6.    *
7.    *
8.    
9.    *
10. 
11. * 


(b)

1. Output of the example would be
2. 1
3. 12
4. 123
5. 1234
6. 12345