BSc IT Sem IV 2018 19 Apr 2018-19 CORE JAVA Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 Attempt of the following: 15 marks
   • a. What is Java Virtual Machine (JVM)? Explain JVM components
   • b. the following
   • c. Define Identifier. Explain rules for identifiers in Java
   • d. of and explain any five features of Java
   • e. Explain the following methods of String
   • f. | How is main() method of Java written? Explain it in detail
2. Q2 Attempt of the following: 15 marks
   • a. | we use switch-case statement? Explain it with example
   • b. List and explain the types of classes in Java
   • c. What is a constructor? Explain characteristics of constructor
   • d. Write a program to illustrate the concept of method overloading
   • e. do you mean by variable arguments? Explain it with example
   • f. | When do we use ‘foreach’ loop? Explain it with example
3. Q3 Attempt of the following: 15 marks
   • a. Differentiate between classes and interfaces
   • b. is a package? Write steps to create a package in Java
   • c. | What is an interface? How can we implement interface in a class?
   • d. Explain the following with example
   • (i) this (ii) super
   • e. Write a program to illustrate the concept of abstract method and abstract class
   • f. Write a program to implement multilevel inheritance with default constructor in each
4. Q4 Attempt any three of the following: 15 marks
   • a. Write a short note on exception handling in Java
   • b. life cycle of a Thread
   • c. Howisa Vector different from an array? How can you create a Vector in Java?
   • d. Explain the use of enumeration datatype in Java
   • e. Define Stream. Explain how we can write binary data to a file
   • f. | What are the different ways of creating a new Thread in Java?
5. Q5 Attempt of the following: 15 marks
   • a. Create an applet to display “Java World”, Change the text color to Red
   • b. Create an AWT application to create a frame with a Button named a Label and a TextField. Enter a number in the TextField .Click of the Button should display square of that number in the Label
   • c. What is the use of LayoutManager? Explain GridLayout and BorderLayout
   • d. Explain the following Listener interfaces
   • e. Explain checkbox class along with its constructors in detail
   • f. | What is the use of adapter classes? Explain any one Adapter class in detail

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