Urgent Assistance needed on this

Question

Hi, I am fairly new to Java and this assignment is way over my knowledge, if anyone able to assist me on the whole coding, that would be great. Thanks all.
I am thinking on using array and the file heading on hardware.dat can be omitted.
Task-
Imagine that you are an owner of a hardware store and need to keep an inventory that can tell you what different kind of tools you have how many of each you have on hand and cost of each one.
Now do the following:
(1) Write a program (Tool.java) that,
(1.1) Initializes (and creates) a file ?hardware.dat?
(1.2) lets you input that data concerning each tool, i.e. the program must ask the user for input and each of the user input is written back in the file.
The file must have the following format:
Record# Tool Name Qty Cost per item (A$)
1 Electric Sander 18 35.99
2 Hammer 128 10.00
3 Jigsaw 16 14.25
4 Lawn mower 10 79.50
5 Power saw 8 89.99
6 Screwdriver 236 4.99
7 Sledgehammer 32 19.75
8 Wrench 65 6.48
(1.3) Exception handling that must be taken into account-
(1.3.1) User must not input incorrect data
(1.3.2) Cost of the item must be a number
(2) Write another program (ListToolDetails.java) that,
(2.1) lets you list all the tools, i.e. it will read the data from ?hardware.dat? in a proper manner (you can choose the display format), File name should not be hard coded.
(2.2) lets you delete a record for a tool, as an example- you can delete all the details pertaining to the tool ? Wrench. Once you delete the information, records must be updated in the ?dat? file.
(2.3) List the total price(rounded to two decimal places) of each tool, as an example, the total price of all the Hammers is A$128 * 10 = A$1280.00
(2.4) Exception handling that must be taken into account-
(2.3.1) In case user inputs an incorrect file name
(2.3.2) In case user inputs incorrect Tool name (when the user wants to delete something)
Bonus Task
This task deals with the inclusion of Javadoc comments and generation of documentation pages.
Task-
Your task is to add meaningful javadoc comments in all the programs and generate HTML documentation pages.

Answer 1

Hi, I am fairly new to Java and this assignment is
way over my knowledge, if anyone able to assist me on
the whole coding, that would be great. Thanks all.
I am thinking on using array and the file heading on
hardware.dat can be omitted.
Task-
Imagine that you are an owner of a hardware store and
need to keep an inventory that can tell you what
different kind of tools you have how many of each you
have on hand and cost of each one.
Now do the following:
(1) Write a program (Tool.java) that,
(1.1) Initializes (and creates) a file
?hardware.dat?
(1.2) lets you input that data concerning each tool,
i.e. the program must ask the user for input and each
of the user input is written back in the file.
The file must have the following format:
Record# Tool Name Qty Cost per item (A$)
1 Electric Sander 18 35.99
2 Hammer 128 10.00
3 Jigsaw 16 14.25
4 Lawn mower 10 79.50
5 Power saw 8 89.99
6 Screwdriver 236 4.99
7 Sledgehammer 32 19.75
8 Wrench 65 6.48
(1.3) Exception handling that must be taken into
account-
(1.3.1) User must not input incorrect data
(1.3.2) Cost of the item must be a number
(2) Write another program (ListToolDetails.java)
that,
(2.1) lets you list all the tools, i.e. it will read
the data from ?hardware.dat? in a proper manner (you
can choose the display format), File name should not
be hard coded.
(2.2) lets you delete a record for a tool, as an
example- you can delete all the details pertaining to
the tool ? Wrench. Once you delete the information,
records must be updated in the ?dat? file.
(2.3) List the total price(rounded to two decimal
places) of each tool, as an example, the total price
of all the Hammers is A$128 * 10 = A$1280.00
(2.4) Exception handling that must be taken into
account-
(2.3.1) In case user inputs an incorrect file name
(2.3.2) In case user inputs incorrect Tool name (when
the user wants to delete something)
Bonus Task
This task deals with the inclusion of Javadoc
comments and generation of documentation pages.
Task-
Your task is to add meaningful javadoc comments in
all the programs and generate HTML documentation
pages.First of all , If its your assignment you are ment to do it your self !!
if u have a problem understanding stuff ask your tutor or prof.
they are paid to teach u this stuff....
second : break the problem in to small task as suggested before, it will help u understand the stuff better
Last thing : No one here is gona do your home work for u
so better start doing some research and if u have an implementation or a logic problem then post them here, sure people will help.
now from what i read i think u need to start looking up on
1) get data from the user : u need some thing like bufferedreader
2) validate the input : check with the upper and lower bounds
3) File handing : research on how to write to a file there are a milion pages there on the web teaching you this stuff