CS508 Modern Programming Languages Assignment No.4 Fall Semester 2013

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CS508 Modern Programming Languages Assignment No.4 Fall Semester 2013


Modern Programming Languages (CS508)
Assignment No. 4
Total Marks: 20 Dead line: 15th January, 2013
Purpose of Assignment:
Intended purpose of this assignment is to give students an exercise that can facilitate them while
working in any professional software development environments. After attempting this
assignment students will be able to:
• Familiarize with the core concepts of a declarative programming language ‘Prolog’ and
object oriented language ‘Java’.
• Learn basic syntax of both languages.
• Students will get comprehensive understanding of important concepts of Prolog
(Inference mechanism, facts, rules and queries) and Java (Arrays).
Application:
IdevSpot-Solutions for Software Companies
IdevSpot provides a range of innovative and reliable eBusiness softwares for companies
intending to start their own online business and earn profits by offering membership services.
IdevSpot is specifically designed for software markets, It’s scalable and integrated solution
includes a full-featured, modular and secure eCommerce platform, a partner order and revenue
management system, as well as a constantly expanding worldwide affiliate network.
IdevSpot market-proven eCommerce solution enables software companies to rapidly embrace
industry shifts, reach customers effectively, and adopt new business models with a view to
optimizing profitable revenue across online and offline channels.
Scenario:
IdevSpot-RoadWeather-Application
IdevSpot-RoadWeather is a 24-hour weather prediction system for snow and ice control on
highways. RoadWeather Pro consists of four components.
1. The first component is a numerical weather prediction system that forecasts from
specified initial (radio sound and surface observations) and boundary conditions (detailed
terrain effects) using a system of hydrodynamic and thermodynamic differential equations.
This part of the system is written in FORTAN.
2. The second component is a graphical user interface (GUI) written in Prolog, which the
developers say is fully interactive and displays predicted weather phenomena as symbolic
objects.
3. The third component is an Expert Weather Advisor, written in Prolog, which permits
mouse point and click manipulation of weather "objects" thereby allowing forecast
upgrades based of recent observational data received from sensors or human observers.
4. The final component is an Expert GIS system, written in Java, which detects the
presence of rain or snow from an image. Based on their physical properties and the type of
visual effects they produce, weather conditions can be identified.
Evaluation:
Suppose you received the following observational data about weather.
�� It’s raining in Islamabad.
�� It’s raining in Sturt.
�� It’s raining in Newell.
�� It’s raining in Mansehra.
�� It’s raining in Peshawar.
�� It’s cold in Strut.
�� It’s cold in Newell.
�� It’s cold in Mansehra.
�� It’s cold in Quetta.
�� It’s cold in Chaman.
�� It’s cold in Karakoram.
�� It’s sunny in Quetta.
�� It’s sunny in Larsi.
�� It’s sunny in Chaman.
�� It’s sunny in Multan.
1. Now being a prolog programmer answer the following questions:
A. Write the prolog rules for the followings. [5]
a. If it’s raining and cold then it’s snowy.
b. If it’s cold and sunny then it’s pleasant.
c. If it’s only sunny then it’s hot.
d. If it’s raining and sunny it’s rainbow.
e. If it’s raining only it’s lovely.
B. Write the prolog queries for the followings. These queries will be executed according to
the facts and rules defined for the above given data and perform all steps to write the output
of the given queries. [10]
a. Is it snowy in Y?
b. Is it pleasant in X?
c. Is it hot in Z?
d. Is it raining in Islamabad?
e. Is it sunny in Larsi?
f. Is it cold in W?
Note: In queries where variables are used along with answer write all the possible matches either
they are true or not.
2. Considering yourself as a Java programmer who is working on fourth component of this
application, write a small program in Java that copies contents from data array into result array
without using loops or conditionals. It should start copying from position 4 of data array into
result array. [5]
Hint:
a. Use proper API function available in Java to perform this operation.
b. Data array is of length 9
c. Starting position in result array is 0
d. Result array is of length 5
Uploading Instructions:
• Your assignment must be in MS Word format.
• Use this compiler, to compile your code section.
• Paste screen shot of your compiled code after the code.
• No assignment will be accepted through email.
Rules for Marking:
It should be clear that your assignment will not get any credit if:
• The assignment is submitted after due date.
• The submitted assignment does not open or file is corrupted.
• Your assignment is copied from internet, or from any other student (Strict disciplinary
action will be taken in this case).
Note:
• You should consult recommended books to clarify your concepts.
• It’s better for you to submit the assignment well before the deadline.
• If you have any query about assignment then email