Mr. X owns a store that sells almost everything you think about. Now he wants a inventory management system to manage his inventory. Mr. X feels that controlling his inventory through SMS from his mobile will be revolutionary. So as a prequel, he decides that he wants a system that accepts one line commands and performs the respective operation.
Below is the list of commands he needs in the system:
a) create itemName costPrice sellingPrice Whenever Mr. X wants to add a new item to his store he issues a create command. This command creates a new item in the inventory with the given cost price and selling price. The prices are rounded off to two decimal places.
b) delete itemName If Mr. X decides not to sell an item anymore, then he simply issues a delete command. This command will remove the item from the inventory.
c) updateBuy itemName quantity Whenever Mr. X purchases additional quantity of the mentioned item, then he issues a updateBuy command. This command should increase the quantity of the mentioned item.
d) updateSell itemName quantity Whenever Mr. X sells some item, then he issues a updateSell command. This command should deduct the quantity of the mentioned item.
e) report Whenever Mr. X wants to view his inventory list he issues the report command. This command should print the current inventory details in the specified format sorted by alphabetical order. Apart from printing the inventory it has to report on the profit made by Mr. X since last report generation. Where profit is calculated by: ∑ (sellingPrice-costPrice) of the sold items multiplied by no. of items sold- costPrice of the deleted items.
create Book01 10.50 13.79
create Food01 1.47 3.98
create Med01 30.63 34.29
create Tab01 57.00 84.98
updateBuy Tab01 100
updateSell Tab01 2
updateBuy Food01 500
updateBuy Book01 100
updateBuy Med01 100
updateSell Food01 1
updateSell Food01 1
updateSell Tab01 2
report
delete Book01
updateSell Tab01 5
create Mobile01 10.51 44.56
updateBuy Mobile01 250
updateSell Food01 5
updateSell Mobile01 4
updateSell Med01 10
report
create Book01 10.50 13.79
create Food01 1.47 3.98
create Med01 30.63 34.29
create Tab01 57.00 84.98
updateBuy Tab01 100
updateSell Tab01 2
updateBuy Food01 500
updateBuy Book01 100
updateBuy Med01 100
updateSell Food01 1
updateSell Food01 1
updateSell Tab01 2
report
delete Book01
updateSell Tab01 5
create Mobile01 10.51 44.56
updateBuy Mobile01 250
updateSell Food01 5
updateSell Mobile01 4
updateSell Med01 10
report
INVENTORY REPORT
Item Name Bought At Sold At AvailableQty Value
--------- --------- ------- ----------- -------
Book01 10.50 13.79 100 1050.00
Food01 1.47 3.98 498 732.06
Med01 30.63 34.29 100 3063.00
Tab01 57.00 84.98 96 5472.00
---------------------------------------------------------------------------
Total value 10317.06
Profit since previous report 116.94
INVENTORY REPORT
Item Name Bought At Sold At AvailableQty Value
--------- --------- ------- ----------- -------
Food01 1.47 3.98 493 724.71
Med01 30.63 34.29 90 2756.70
Mobile01 10.51 44.56 246 2585.46
Tab01 57.00 84.98 91 5187.00
---------------------------------------------------------------------------
Total value 11253.87
Profit since previous report -724.75
INVENTORY REPORT
Item Name Bought At Sold At AvailableQty Value
--------- --------- ------- ----------- -------
Book01 10.50 13.79 100 1050.00
Food01 1.47 3.98 498 732.06
Med01 30.63 34.29 100 3063.00
Tab01 57.00 84.98 96 5472.00
---------------------------------------------------------------------------
Total value 10317.06
Profit since previous report 116.94
INVENTORY REPORT
Item Name Bought At Sold At AvailableQty Value
--------- --------- ------- ----------- -------
Food01 1.47 3.98 493 724.71
Med01 30.63 34.29 90 2756.70
Mobile01 10.51 44.56 246 2585.46
Tab01 57.00 84.98 91 5187.00
---------------------------------------------------------------------------
Total value 11253.87
Profit since previous report -724.75
You can run the main method located in the java.com.inventory.InventoryApplication class or run the
following maven command mvn exec:java
Because there is no dependecy integrated for persistance, a Singleton object is used for simulate it. However, when you exit a running program, all data registered will be lost. Take into account that each Exception thrown may exit the program.
You can run unit test with the following command mvn test.
You will get a code coverage under HTML report under ./target/site/jacoco/*.html