B.C.A. (Semester (CBCS) Examination No/Dec-2018
VISUAL PROGRAMMING
Time: 2½ Hours Max. Marks: 70
Instructions: All Questions are compulsory.
Figures to the right indicate full marks.
Q.1 Choose correct alternatives. 14
The operator used to access member function of class?

.
What is the need for 'conversion of data type' in
To store a value of one data type into a variable of another data type.
To get desired data.
To prevent situations of runtime error during change or conversion of data
type
None of these
is used by a single .NET application
Private Assembly Shared Assembly
Public Assembly Protected Assembly
Which of the following keyword is not a part of exception handling?
Try Thrown
Finally Catch
Which of the classes provide the operation of reading from and writing to the
console in C#.
System.Write System.Console
System.ReadLine Both a and b
statement is incorrect about the delegate.
Delegates are reference type Delegates are type safe
Delegates are object oriented None of these
Which is the correct namespace used in
System.Linq System.Process
System.Drwaing2D System.Drwaing3D s
is the default event of ListBox control.
SelectedlndexChanged SelectedTextChanged
SelectedValueChanged SelectedltemChanged
class of ADO.Net is used to execute stored procedure.
Connection Command
DataReader DataTable
10) Which of the following statement is true about destructor?
Destructor cannot be defined in structs.
Destructor cannot be inherited or overloaded.
Destructor can use sign to declare it.
All of these
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11) ArrayList class is locating within the namespace.
System.Collection System.Generics
System.Data.Generics System.Data.ArrayList
12) ComboBox allow to multiple selection of items.
True False
13) Which of these type parameters is used for generic methods to return and
accept any type of object?
K N
T V
14) Which among the following cannot be used as a datatype for an enum in
C#.Net?
short double
int all the above
Q.2 Attempt any four of the followings. 08
What is the importance of finally block?
What is the difference between SDI and MDI?
What is DataSet?
What is variable length parameter?
What is virtual method?
Write short notes on. (Any Two) 06
Abstract Method
CheckBox and RadioButton
Indexer
Q.3 Attempt any two of the followings:-
What is exception? Explain exception classes with example.
What is Interface? Explain with example.
Explain console I/O stream with example.
08
Answer the following. (Any One) 06
What is delegate? Explain multicast delegate with example.
Explain following controls with example
ColorDialog RichTextBox DateTimePicker
Q.4 Attempt any two of the followings:- 10
What is array? Write a program to find the maximum array elements from
10 elements.
What is constructor? Explain its type with example.
Explain Common Language Runtime and Common Type System.
Answer the following. (Any One) 04
What is method overriding? Explain with example.
What is event? Explain keyboard events with example.
Q.5 Attempt any two of the following:- 14
Write a program to implementation of Hashtable.
What is ADO.Net? Explain Connection and Command object with example.
What is stream? Explain Binary stream with example.