Assignment 1 Skills
Using Arrays
Writing methods given a speci cation
Assignment 1 Background
Consider a software system that models a StoreShelf. A StoreShelf has M shelves, each with N spaces for holding a Product. We can model this with an MxN array.
The Product class was discussed in class.
The incomplete declaration for the StoreShelf is shown below. You will complete the declaration and write two unrelated methods for the StoreShelf class.
1 public c l a s s S t o r e S h e l f f
/
3
The
s p a c e s on
t h e
s h e l f . Each
a r r a y
e l e m e n t h o l d s a r e f e r e n c e
4
t o
a
Product
t h a t
i s d i s p l a y e d
i n t h a t s p a c e .
5
A
n u l l r e f e r e n c e
i n d i c a t e s an
empty
s p a c e .
/
7
private
Product [ ] [ ] s p a c e s ;
8
S t o r e S h e l f ( int m, int n ) f
9
public
10
s p a c e s = new Product [m] [ n ] ;
g
/
14
Method t o add P r o d u c t s t o t h e S t o r e S h e l f
/
public void addProduct ( int m, int n , Product p ) f
17
s p a c e s [m] [ n ] = p ;
g
/
21
Returns
t h e
p r i c e o f
t h e
Product
w i t h
t h e
s p e c i f i e d
name .
22
Returns
1
i f t h e r e
i s no
Product
w i t h
t h e
s p e c i f i e d
name .
NO 2 PRODUCTS WILL HAVE THE SAME NAME
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25
public double g e t P r i c e ( S t r i n g productName )fg
26
/
28
Checks each
space , i f
t h e Product
c o u n t i s
b e l o w 10 ,
29
t h e
Product
I n f o r m a t i o n s h o u l d be
p r i n t e d
t o St an da rd Out
30
Once
a l l
s p a c e s have
been c h e c k e d
t h e l i n e
31
’ End
o f
L i s t ’ s h o u l d
be p r i n t e d .
/
33
public void p r i n t R e s t o c k L i s t ( ) fg
34
g
Assignment 1 Requirements
40% - Write the StoreShelf method getPrice.
50% - Write the StoreShelf method printRestockList.
10% - Provide comments where appropriate.
Assignment 1 Submission Submit on Blackboard:
1. StoreShelf.java
Required Each submitted le should include your name and a statement that this is your own work. This should appear as a comment at the beginning of any code le.
