What modifiers may be used with top-level class?public, abstract and final can be used for top-level class.   What are inner class and anonymous class?Inner class : classes defined in other

What is Garbage Collection and how to call it explicitly?When an object is no longer referred to by any variable, java automatically reclaims memory used by that object. This is known as garbage colle

1. Why do you prefer Java? Answer: write once ,run anywhere. 2. Name some of the classes which provide the functionality of collation? Answer: collator, rulebased collator, collationkey, collationele

Question1: What is a Servlet? Answer: Servlets are modules of Java code that run in a server application (hence the name "Servlets", similar to "Applets" on the client side) to ans

Q:In Java, what is the difference between an Interface and an Abstract class? A: An Abstract class declares have at least one instance method that is declared abstract which will be implemented by the

1) What is the purpose of garbage collection in Java, and when is it used? The purpose of garbage collection is to identify and discard objects that are no longer needed by a program so that their res

QUESTION: What is a JavaBean? (asked by Lifescan inc) ANSWER: JavaBeans are reusable software components written in the Java programming language, designed to be manipulated visually by a software de

Q: What are the most common techniques for reusing functionality in object-oriented systems? A: The two most common techniques for reusing functionality in object-oriented systems are class inheritanc

Question 1: What is the three tier model? Answer: It is the presentation, logic, backendQuestion 2: Why do we have index table in the database? Answer: Because the index table contain the information

Q1: How can we store the information returned from querying the database? and if it is too big, how does it affect the performance? In Java the return information will be stored in the ResultSet objec