JAVA PROGRAMMING LANGUAGE-SEMESTER 2 (2020)

JAVA PROGRAMMING LANGUAGE-SEMESTER 2 (2020)

GROUP A

GROUP A is compulsory. 

Q.1  Write a short notes on the following:       1x10=10

 (a) Operators

 (b) Garbage Collection

 (c) TCP/IP

 (d) Scanner Class

 (e) Multithreading

 (f ) Java Applet

 (g) JDBC

 (h) String Buffer

 (i) Final Class

 (j) Iterative statement

Q.2  Explain the importance of Java machine(JVM) in JRE.         5

GROUP B

 Answer any three questions 

3.      (a) Explain what is type conversion and how it is different from Type casting?         5

         (b) Write the difference between byte and character stream.           5

         (c) Explain the different data types of Java.            5

4.      (a) Write the difference between instance variable and class variable with suitable example.         5

         (b) Can constructor be overloaded? Write a program in Java in support of your answer.       5

         (c) write a program in Java to find sum of all elements of an array.          5

5.    (a) Write the difference between method overloading and method overriding with the help of suitable example.        5

       (b) What are packages?  How they are created and used.         5

       (c) What is an interface? How it is different from abstract class?          5

6.    (a) What are exceptions? How are they handled in Java?            5

       (b) What is thread priority? How can it be set for a thread?        5

       (c) What is synchronisation and why it is important?         5

7.    (a) Write the difference between Applet and Application programs.      5

       (b) Write the feature of Java swing.         5

       (c) Write short notes on any two of the followings:           5

  (i) Listener interfaces

  (ii) Servlet

  (iii)Adaptor and inner classes