The central new idea in OOP is to allow classes to express similarities among objects that share some, but not all, of their structure and behavior. Such similarities can be expressed using inheritance and polymorphism. Explain how the special variables this and super help manage the inheritance relationship between classes and sub-classes. Do they (i.e., this and super) also help polymorphism? Explain....

how to perform operation like sorting searching on records in a text file in java. record may contain stud name,marks etc

Hi All,

We r automating our buid process i wanted to know how to start the weblogic using command promptt or ant task to include in build xml.
Our server is on differdnt machine .......

Plz provide suggestion

It will be a great help for me

Thanks in advance

I am developing a project for video recording through Applet using JMF(Java Media Framework) package. I need to know if I can record video without JMF package using java?Or if I can include JMF package in my jar with all its dlls.

How to get bookmarks from firefox using java.I want to get bookmarks from firefox and store them into database.I want some sample code.

Tool-tip text not visible when run applet in a browser in windows but it work on mac so plz provide any solution for this.

What is the strictfp modifier for? How it isuseful?

What is the difference between synchronization() & static Synchronization() in the thread?

Why we are not using String as a primitive datatypes where we are using it as a Class? Explain this?

Why does Java automatically do the "extends object" even if you don't declare it?

How to implement multi-threading using Java in single threaded Operating System (ie., on Operating System that does not support multi-threading)

What is the purpose of inventing interface class and abstract class in Java though they have same purpose?

How will you handle the event in case if there is no Eventlisteners in Java.

How to run package programs in Java?

Why default constructor is not provided by when paramaterised constructor is present?

Why SingleTon object is not garbage colleted?

Is it possible to have another instance in the case we are applying Singleton pattern? If yes, how?

What is mean by Abstract Interface?