IT-504-C Java Programming - Nov 2022 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   a"Java is object-oriented language". Give reasons to supporting the given argument.
   How to answer

   • Define object-oriented programming features
   • Show Java supports encapsulation, inheritance, polymorphism, abstraction
   • Explain classes, objects, data hiding in Java
   • Conclude with reasons why Java is called purely object-oriented with exceptions
2. 7 Marks
   bHow to create a package in Java? Explain with an example.
   How to answer

   • Define Java package and its purpose
   • Steps to create package using package statement
   • Compilation and directory structure
   • Example of creating and importing package
3. 7 Marks
   aExplain in brief about event sources and event listeners.
   How to answer

   • Define event, event source and event listener
   • List common event sources e.g. Button, Checkbox
   • Explain listener interfaces and registration
   • Brief event handling flow with example
4. 7 Marks
   bExplain the implementation process of multiple inheritance in Java.
   How to answer

   • State Java does not support multiple inheritance via classes
   • Explain use of interfaces to achieve it
   • Steps to implement multiple interfaces
   • Example program with two interfaces
5. 7 Marks
   aExplain Exception-handling in Java with the suitable example.
   How to answer

   • Define exception and exception hierarchy
   • Explain try, catch, finally, throw, throws
   • Provide suitable example program
   • Explain unchecked vs checked exceptions
6. 7 Marks
   bExplain about AWT facilities of Java.
   How to answer

   • Define AWT and its role in GUI
   • List AWT components: Frame, Button, TextField etc.
   • Explain containers, layout managers
   • Mention event handling with AWT
7. 7 Marks
   aWhat are the basic steps for using JDBC to access database? Explain briefly with syntax.
   How to answer

   • List basic JDBC steps: load driver, connect, statement, execute, close
   • Give syntax for each step with DriverManager
   • Brief explanation of ResultSet and Statement types
   • Example code snippet
8. 7 Marks
   bExplain the term "try", "catch", "throw" and "assertions" with examples.
   How to answer

   • Define try, catch, throw and assertions
   • Explain syntax and purpose of each
   • Give small example for each
   • Differentiate throw vs throws and assertion use
9. 7 Marks
   aWrite a Java program to illustrate communication between client and server.
   How to answer

   • Explain Socket and ServerSocket classes
   • Write server program accepting client
   • Write client program sending/receiving data
   • Show output of communication
10. 7 Marks
    bExplain thread synchronization with an example program.
    How to answer

    • Define synchronization and need in multithreading
    • Explain synchronized method and block
    • Provide example program with shared resource
    • Explain output without vs with synchronization
11. 7 Marks
    aExplain the life cycle of Applet.
    How to answer

    • Define applet and its lifecycle stages
    • Explain init, start, stop, destroy, paint methods
    • Draw lifecycle diagram
    • Explain sequence with example
12. 7 Marks
    bWrite a java program to demonstrate multithreading operation.
    How to answer

    • Explain Thread class and Runnable interface
    • Write program creating multiple threads
    • Show start, run, sleep/join methods
    • Show output demonstrating concurrency
13. 7 Marks
    aWrite a program to copy content of one file to another using character stream class.
    How to answer

    • Explain FileReader and FileWriter character streams
    • Steps to open, read, write and close files
    • Write complete Java program for file copy
    • Handle IOException with try-catch
14. 7 Marks
    bDiscuss various levels of access protection available for packages and their Implementations.
    How to answer

    • Define private, default, protected, public levels
    • Explain visibility for packages and subclasses
    • Explain implementation with example
    • Summarize access table
15. 7 Marks
    aWhat is a Stream? What is the difference between byte streams and character streams? How are they used to capture input from the user?
    How to answer

    • Define stream as flow of data
    • Differentiate byte streams vs character streams
    • List classes: InputStream/OutputStream vs Reader/Writer
    • Explain capturing user input with System.in and BufferedReader/Scanner
16. 7 Marks
    bExplain any two of the following:

    1. i)Copy Constructor
    2. ii)JDBC-ODBC Bridge
    3. iii)Abstract Class
    4. iv)Interface
    How to answer

    • Select any two topics from the list
    • Define each with syntax and purpose
    • Give example program/snippet
    • Mention use cases