M.C.A. (Science) (Semester III) (CBCS) Examination, 2017
JAVA PROGRAMMING
Day Date: Thursday, 20-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
Instruction: Question No.1 and are compulsory.
Attempt any 3 questions from Q. No.3 to Q. No.7.
Figures to the right indicate full marks.
Q.1 Choose correct alternative: 10
What is used to execute parameterized query?
Statement interface PreparedStatement interface
ResultSet interface None of the above
Variables declared within a method or block are called
static variable local variable
instance variable global variable
Which of the following is true in the case of abstract class?
Abstract constructors cannot be created.
Abstract classes cannot be inherited.
An abstract class contains only abstract methods.
All of the above.
A is a component that can hold other components.
A window A container A control A frame
Which of the following are passed as an argument to the paint
method?
A Canvas object A Graphics object
An Image object A paint object
What are the sequences of method executed when an Applet starts
execution?
destroy()
unload()
activate(), deactivate(), destroy()
destroy(), stop()
method is used to perform DML statements in JDBC?
execute() executeQuery()
executeUpdate() executeResult()
is the ability of an application to perform multiple tasks at the
same time.
Page 2 of 2
Multiprogramming Multithreading
Multiprocessing Multitasking
Which of the following is not a wrapper class?
Vector Character Boolean Integer
10) A applet tag is written in body tag of
WWW HTTP HTML Applet
State whether true or false 04
Final() method is used to garbage collect an object.
The suspend()method is used to terminate a thread.
Any user-defined exception class is a subclass of the Exception
class.
User-defined package cannot import like the standard packages.
Q.2 Write short notes on the following: 08
Differentiate overloading and overriding.
Importance of finally block.
Answer the following: 06
What is JVM? State its purposes.
Differentiate threads and processes.
Q.3 Answer the following: 14
What do you mean by synchronization? Explain with example.
What is the main advantage of PreparedStatement class in Java?
Explain with an example.
Q.4 Answer the following: 14
What is Exception? Explain any three built-in exceptions.
What is Applet? Explain Applet lifecycle in detail.
Q.5 Answer the following: 14
Explain Adapter class with suitable example.
Explain the AWT controls.
Checkbox ii) Text Field
Q.6 Answer the following:
Explain BorderLayout class with suitable example. 14
Explain different features if Java.
Q.7 Answer the following: 14
What is a package? List the steps for creating a package with example.
Explain Event Delegation Model in detail.