NALANDA OPEN UNIVERSITY QUESTION (2017) , BCA, Part-III,Paper- XXI (Introduction to Internet Programming)

NALANDA OPEN UNIVERSITY QUESTION (2017) , BCA, Part-III,Paper- XXI (Introduction to Internet Programming) 

                                                                           2017
                                                                    Time: 3 hours
                                                                   Full marks: 80
                                      Answer any Five questions. All questions carry equal marks.

1. What is the relationship between JAVA and HTML? Why do we use interfaces in JAVA? Explain withe example.

2. Comment on " Java is a robust programming language? What is the java virtual machine?

3. Differentiate between:
    a) Thread and process
    b) Window and panel
    c) This and Super
    d) Private and protected

4. What is meant by serialization? Also differentiate between Transient and Volatile keywords.

5. Write a java program to display a button labeled " Nalanda Open University".

6. Why java is called platform independent? Is C++ also platform independent? Justify your answer?

7. When do we declare a member of class static? Explain with the help of a suitable example.

8. Write a program in java to copy a file to another file. Name of the files are entered at command line? For example copy File1, File2.

9. Write a recursive function in java to find GCD of two integers entered at command line.

10. Write a program in java to print the following pattern
       1
       2 2
       3 3 3
       4 4 4
       5 5 5 5 5