BSc CS Sem 4 BSc CS Semester 4 (2018 2019) Apr 2019 ADVANCED JAVA Question Paper - Mumbai University | munotes

Questions asked in this paper

• 2) Figures to the right indicate marks

1. Q3 Illustrations, in-depth answers and diagrams will be appreciated
2. Q4 Mixing of sub-questions is not allowed
3. Q1 Attempt All (Each of SMarks) 15 marks
   • (a) Multiple Choice Questions:
   • (i) | Which of these events is generated when a button is pressed?
   • (ii) Which of the following is a method of JDBC batch process?
   • (iii) code retrieves name and version of the protocol
   • (iv) tag is used to execute Java code inside the JSP
   • (v) JSON stands for
   • (C) Java Object Notation (D) None of these
   • (b) Fill in the blanks: ClassNotFoundException, no struts2, JSON, XML,
   • (i) package contains all the classes and methods required for event handling in Java exception is raised when JDBC driver fails to load
   • (ii) object of is created for each servlet, to get configuration information from web.xml file
   • (iv) A java bean class should have a _ constructor
   • (v) framework is used to develop MVC based web
   • (c) Answer in | — 2 sentences:
   • (i) JTextArea used for?
   • (ii). Write Java code to get ResultSetMetaData object
   • (iii) Write JSP code, to display today’s date and time using expression tag
   • (iv) ValueStack in struts2?
   • (v) Describe how to create an object in JSON
4. Q2 Attempt the following (Any THREE) 15 marks
   • (a) Explain how to use ButtonGroup class
   • (b) What is a combobox? Explain various constructors and methods of
   • (c) Explain JDBC architecture
   • (d) Explain Statement interface and its methods
   • (e) Write a swing program to accept temperature of the day in a textfield. Using radio buttons choose conversion: Fahrenheit to Celsius or vice versa. On click of a button, display the converted temperature in a label. [Formula:C = (F —
   • (f) Write a JDBC program to create an Employee table. Insert two records in the
5. Q3 Attempt the following (Any THREE) 15 marks
   • (a) Differentiate between GenericServlet and HttpServlet
   • (b) Write a note on Servlet life cycle
   • (c) Explain page directive in JSP
   • (d) Explain the following:
   • (e) Write a servlet program to accept name and aggregate marks from index.html if the aggregate marks is larger than 55, then print “You are selected”, else print “You are not selected”
   • (f) Write JSP program to accept a number from the user and find its factorial. If the number is negative, show error message and accept the number again
6. Q4 Attempt the following (Any THREE) 15 marks
   • (b) Explain the significance and structure of struts.xml file used in struts2
   • (c) Write a note on Struts2 interceptors
   • (d) Write the similarities and differences between JSON and XML
   • (e) What is JSON schema? Give example and illustrate
   • (f) Explain various Result Types available in Struts2
7. Q5 the following (Any THREE) 15 marks
   • (a) Describe various constructors and methods of JCheckBox class
   • (b) Explain various methods of Connection interface
   • (c) Write a note on JSP application implicit object
   • (d) Explain session tracking mechanism in servlets
   • (e) Write a note on Struts2 Action class

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