Java | JSP | JSF Answers

Write the signature for a method named average that has two parameters, both of type int, and returns an int value.

What are advantage in applying encapsulation feature when writing a Java program?

Is there a collection data structure that I can use to hold and manipulate different types of objects (i.e. Vector)? I have been trying an Object array, however, it is extremely limited and doesn't seem to work right.

Please suggest me topics for my minor project, I am thinking of preparing a GUI based software configuration management system, do you think it's feasible for me to prepare that? If yes, then can you please suggest me some outline of it.

I have a problem with jsp. I am developing login.jsp. in this all the code of login is written. If username and password is in database then ok, it is running, but I want to print "invalid login" when username & password doesn't match with that of database. How can I do this?

You will write a simple jsp page and servlet that will accept the name and marks of student and then display the message according to the marks of the student.

Develop array based Java program to help a local company to store their latest hand phone information. This program must have features with the following specifications:

I. The program can store new hand phone information inside the array.
II. The program can display all the hand phone information inside the system.
III. The program can search for hand phone based on given id.
IV. The program can change the hand phone detail on given web page id.
V. Include another extra method into it. It should include calculation.

How do I create a case sensitive bubble sort and selection sort for a 2 dimensional array?