NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
JUNE/JULY 2013 EXAMINATION

COURSE CODE:                                                                              CIT351                                                                

COURSE TITLE:                                                                             C# Programming

DURATION:                                                                                     3 Hours

INSTRUCTIONS:                                                                            Answer any Four (4) Questions

Q1.       Study the source code in the window below carefully and answer the questions that follow:

      a.   What is the main purpose of defining the ‘MyForm’ class?                                           (7½ marks)

      b.   State the common way of deriving naming standards in C# programming.                   (5 marks)

      c.    What is the significance of employing the right standard in naming objects in C# programming?   (5 marks)

Q2.a     Describe how memory leaks are handled in C# programming?                                               (7½ marks)

      b.   State the guiding principle for accomplishing the following:

(i)        Designating an end statement                                                                      (5 marks)

(ii)       Enhancing a source code legibility                                                               (5 marks)

Q3a.     In the event where an application is saved as Learning.cs, state the procedure required to produce and run this application.         (10 marks)

     b.    Specify the categories of Static Properties commonly employed in C# programming.                                           (7½ marks)

Q4.       Go through the FibObj.cs source code below carefully, before answering the questions that follow:

     a.    What does the source code describe and how is it used?                                                         (7½ marks)

     b.    State the key steps required to build a code library using the source code above.       (10 marks)      

Q5.a     Write 3 standard programming tasks carried out in VisualStudio.NET.                                    (12 marks)

      b.   State the key role of the Solution Explorer in C# programming.                                              (5½ marks)