JAVA April 2011

APRIL-2011                                                                                                                         SAE4A /SAZ4A

PART-A

1.       Define: Encapsulation

2.       List the rules for identifiers in Java.

3.       Write a note on: Increment and Decrement Operators.

4.       Give the general form of switch statement.

5.       Write the use of extends keywords.

6.       What is an interface?

7.       How do we start a thread?

8.       What are Run-Time Errors?

9.       How to draw lines in Java? Give an example.

10.   Write a note on: Input Stream Class.

11.   What is the significance of the accept() method of the ServerSocket class?

12.   What is Border Layout?

PART-B

13.   Discuss about Java constants with example.

14.   Write short notes on: Data types in Java.

15.   What are constructors? Discuss about the usage of constructors with examples.

16.   Write a Java Program to print Alphabetical ordering of strings.

17.   Write short notes on: Common Java Exceptions.

18.   Discuss briefly about character stream classes.

19.   What are the important methods in the URL class? Discuss briefly.

PART-C

20.   Write a Java Program to find the sum of the following Harmonic series for a given value of n:

    1+1/2+1/3+…….+1/n

21.   What is meant by single inheritance? Explain this with an example Java Program.

22.   Explain about creating packages and accessing a package with examples.

23.   Explain about random access files in Java with example programs.

24.   Explain the usage of any FOUR AWT controls with suitable examples.