Question: Can I create multi-dimensional arrays in JavaScript? Do you have an example? Answer: Yes and no. You can’t create multi-dimensional arrays (as such) in JavaScript. What you can do
Question: I want to validate a form so that three radio buttons may be checked, but no more. This will be used in a “what are your top three choices”
Question: Both Enterprise JavaBeans and Servlets are server side components. What are the major differences between them? Specifically, what is the difference between a Session Bean and a Servlet? Answer:
Question: What is the difference between an interface and an abstract class? Answer: Within the confines of Java syntax, an interface is a type that only defines abstract methods and
Question: Can I retrieve the position of the mouse on the screen? I need to know the X and Y coordinates because I want to position a layer at that
Question: Is the JDBC Connection class thread safe? In other words, can a connection be shared between multiple threads without using synchronization? Answer: java.sql.Connection is actually an interface and not
Question: I’m opening a file for reading, and after reading its contents I write it all to other file. Now I want to delete the original file. How do I
Question: What is the SocketImpl class used for? Answer: SocketImpl is an abstract class that provides an interface for customizing socket implementations. Subclasses of SocketImpl are not intended to be
Question: How can I dynamically load a class and call its constructor which has a primitive data type as one of its parameters? Answer: Using reflection to dynamically instantiate a