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NATIONAL OPEN UNIVERSITY OF NIGERIA
UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
JANUARY 2012 EXAMINATION
COURSE CODE: CIT467
TITLE: VISUAL PROGRAMMING & APPLICATIONS
CREDIT: 3 CREDIT UNITS
TIME ALLOWED: 2HRS, 30MINS.
INSTRUCTION: ANSWER QUESTION ONE (1) AND ANY OTHER FOUR (4)
Question 1 (22 marks) Compulsory
(a) List six (6) examples of visual programming languages you know (3marks)
(b) Compare and Contrast VIPR and C++ (3marks)
(c) Outline fully the parts of a Universal Resource Locator (URL) (4marks)
(d) Distinguish between CSS and JavaScript? (2marks)
(e) Distinguish between physical and logical markup tags (3marks)
(f) Identify eight (8) features of an Object-Oriented Programming Language (4marks)
(g) Describe three limitations of Object-Oriented Programming Language (3marks)
Question 2 (12 marks)
(a) Briefly outline how to write a simple HTML code (4 marks)
(b) Give the output of this HTML code segment below and rewrite the full HTML code using Sample HTML code as the title (8mks)
<h1>You are welcome to Visual<h1>
<B>Programming</B><u>Class</u><sup>2</sup>
Question 3 (12 marks)
(a) Distinguish between order and unorder list and itemise the steps to create them. (6marks)
(b) Compare and contrast between Absolute and Relative URLs (3marks)
(c) State three benefits of bundling code into individual software object (3 marks)
Question 4 (12 marks)
(a) How are paragraph formatted in HTML (2marks)
(b) Describe the operation of alignment in paragraph formatting (5marks)
(c) Highlight the steps to create hyperlinks (5marks)
Question 5 (12 marks)
(a) Briefly explain the following concept
i. Inheritance (3marks) ii. Encapsulation (3marks)
iii. Data abstraction (3marks)
iv. Package (3marks)
Question 6 (12 marks)
(a) Write a program named ArrayDemo, that creates an array of 10 integers and put the values of 10,20,30,40,50 60, 70 80, 90 and 100 into it, and prints each value to standard output. (6 marks)
(b) Compare and contrast class and object (3 marks)
(c) List three properties of a good abstraction (3 marks)
