B.Sc. (Computer Science) Sem 3 JAVA Programming Nov 2024 Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 Attempt any four: A} Describe how Java acineves portability and architecture-neutrality Explain ‘overloading’ and ‘overriding’ in java 20 marks
   • C) Explain five built-in of Java Library Write a in Java to create a class called ‘Rational’ for performing arithmetic with fractions. Provide appropriate constructors to initialize the fraction. Implement methods to add and multiply two fraction objects Write a program in Java to create a class called Complex for performing addition aind multiplication of two complex numbers. Implement the
   • F) Write & program in Java to create a class called Point. Implement the appropriate constructor. methods for returning the distance of the calling point from another point passed as an argument of the method A} Describe 5 methods of ‘ArrayList’
   • B) Explain the {ComboBox component of Swing
   • C) Explain with examples the creation of threads in Java D} Write a program in Java to create a GUI application for converting meters to kilometers. Provide the appropriate GUI elements for the application
   • E) Write a program in java which creates two threads. One printing ‘Pass’ and the other printing ‘fail’
   • F) Write a program in Java to insert a record in the Student table. The Student table has the following fields: Id, first_name, last_name, course, Attempt any four: (20)
   • A) Explain the life cycle of a servlet Explain five methods of Session’ class
   • C) Explain the scripting elements in JSP with examples
   • D) Write a serviet which calcv.lates the Gross salary of the person. Assume tnat basic pay is available from the previous HTML page and DA is 10%, HRA is 20% of the basic pay
   • E) Write a JSP page which checks if number is even or add. The number is available in the current page through the variable name
   • F) Write a JSP page which displays the number and its square. The number is in the current page through the variable name ‘num’
2. Q4 Attempt any five: 15 marks
   • A) Explain with examples three looping structures in Java
   • B) Explain integral literals in Java
   • C) Explain. the ‘PreparedStatemer.t’ with an example Explain the purpose of adaptor classes E} Explain 3 implicit objects in JS}
   • F) Write a note on JSON with Java

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