What kind of thread is the Garbage collector thread?
Garbage collector thread is a daemon thread.
What are the components of J2EE application?
A J2EE component is a self-contained functional software unit that is assembled into a J2EE application with its related classes and files and communicates with other components. The J2EE specification defines the following J2EE components:
- Application clients and applets are client components.
- Java Servlet and JavaServer Pages technology components are web components.
- Enterprise JavaBeans components (enterprise beans) are business components.
- Resource adapter components provided by EIS and tool vendors.
Why empty tag is required in Java Struts?
When the requested variable does not contain any information, (null or empty) then this tag is used to know the contents present in the other body parts of the tag. If the tag is nested then it is advisable to use this tag as it may contain a bit of information.
How the struts dispatch action works?
Org.apache.struts.actions.Dispatchaction interface gives the user to collect all the information and functions into a single action file. This interface is very useful because it helps you in developing a common action for all the functions.