Problem Statement
A company stores sales data in a single, cumbersome file.
Each line of the file represents one sale and is formatted as:
CLIENT_ID CNT_1 PRODUCT_1 CNT_2 PRODUCT_2 ...
This indicates that CNT_1 units of PRODUCT_1 were sold to the client
whose id is CLIENT_ID, and CNT_2 units of PRODUCT_2 and so on. You
have been tasked with figuring out how many units of a particular
product have been sold over time to a particular client. You will be
given a String[] sales, a String,
client, and a String, product. You are to
return an int representing how many units of
product were sold to client in sales.
Definition
- Class:
- SalesFigures
- Method:
- getCount
- Parameters:
- String[], String, String
- Returns:
- int
- Method signature:
- int getCount(String[] sales, String client, String product)
- (be sure your method is public)
Constraints
- sales will contain between 1 and 50 elements, inclusive.
- Each element of sales will be formatted as described in the problem statement, with at least 1 product and at most 50 characters.
- CLIENT_ID and each PRODUCT_* will contain between 1 and 10 uppercase letters ('A'-'Z'), inclusive.
- Each CNT_* will represent an integer between 1 and 999, inclusive, with no leading zeros.
- client will contain between 1 and 10 uppercase letters ('A'-'Z'), inclusive.
- product will contain between 1 and 10 uppercase letters ('A'-'Z'), inclusive.
Examples
{"BOB 1 SHOE", "JOHN 2 SHOE", "BOB 3 SHOE 1 HORSE"}"BOB"
"SHOE"
Returns: 4
{"MEG 1 TV 1 VCR 10 DVD 3 DVD", "HARRY 2 TV 6 DVD", "MEG 11 DVD", "MEG 2 TV", "HARRY 101 DVD"}"MEG"
"DVD"
Returns: 24
Note that "DVD" occurs twice in the first element.{"GEORGE 999 PETS"}"BOB"
"SHOE"
Returns: 0
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