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How do you communicate between the servlets?

Servlets can communicate using the request, session and context scope objects by setAttribute() and getAttribute() method. A servlet can placed the information in one of the above scope object and the other can find it easily if it has the reefrence to that object.

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What is a servlet ?
Can we use the constructor, instead of init(), to initialize servlet?
What is servlet context ?
What is servlet mapping?
What is session?
What Difference between GET and POST ?
What mechanisms are used by a Servlet Container to maintain session information?
What are the different ways for session tracking?
What is the difference between ServletContext and ServletConfig?
How can a servlet refresh automatically?
What is Server side push?
What is the Max amount of information that can be saved in a Session Object ?
Why should we go for inter servlet communication?
What is a output comment?
What are the differences between a session and a cookie?
What is HttpTunneling?
Why in Servlet 2.4 specification SingleThreadModel has been deprecated?
How can I set a cookie?
How will you delete a cookie?
What is the difference between Context init parameter and Servlet init parameter?
What are the different ways for getting a servlet context?
What is the difference between an attribute and a parameter?
How to make a context thread safe?
What is the difference between setting the session time out in deployment descriptor and setting the time out programmatically?
How can my application get to know when a HttpSession is removed?
How many cookies can one set in the response object of the servlet? Also, are there any restrictions on the size of cookies?
When a session object gets added or removed to the session, which event will get notified ?
What is URL Encoding and URL Decoding ?
What is the difference between an applet and a servlet?
What is life cycle of servlet?
When init() and Distroy() will be called.
What is the use of setComment and getComment methods in Cookies ?
Why we are used setMaxAge() and getMaxAge() in Cookies ?
What is the use of setSecure() and getSecure() in Cookies ?
How do you communicate between the servlets?
What is Servlet chaining?
How will you communicate from an applet to servlet?
Can we call a servlet with parameters in the URL?
How do servlets handle multiple simultaneous requests?
Explain the directory structure of a web application?
What is pre initialization of a servlet?
What are the uses of ServletRequest?
What are the uses of ServletResponse interface?
How HTTP Servlet handles client requests?
Is HTML page a web component?
What is the web container?
What is deployment descriptor?
Do objects stored in a HTTP Session need to be serializable? Or can it store any object?
How can you implement singleton pattern in servlets ?
What is the difference between an application server and a web server?
What is servlet exception?
What is a WAR file?
What is a servlet filter?
What is JSP?
What is lifecycle of JSP?
What is the difference between JSP and Servlets ?
What is difference between custom JSP tags and beans?
What are the different ways for session tracking?
What mechanisms are used by a Servlet Container to maintain session information?
Difference between GET and POST
What is servlet mapping?
What is servlet context ?
How many JSP scripting elements are there and what are they?
How do I include static files within a JSP page?
How can I implement a thread-safe JSP page?
What is the difference in using request.getRequestDispatcher() and context.getRequestDispatcher()?
What are context initialization parameters?
What is a Expression?
What is a Declaration?
What is a Scriptlet?
What are the implicit objects?
What\'s the difference between forward and sendRedirect?
What are the different scopes available ?
Is JSP extensible ?
What is the difference between <%@ include ...> (directive include) and ?
Can I just abort processing a JSP?
What are the parameters for service method ?
How do I prevent the output of my JSP or Servlet pages from being cached by the browser?
How to refer the \"this\" variable within a JSP page?
Can we implement an interface in JSP ?
How do I use a scriptlet to initialize a newly instantiated bean?
What are JSP Actions?
What is the difference between ServletContext and ServletConfig?
What is a Hidden Comment?
How to pass information from JSP to included JSP?
How do you pass data (including JavaBeans) to a JSP from a servlet?
How can I set a cookie?
How will you delete a cookie?
What JSP lifecycle methods we can override?
How will you include a static file in a JSP page?
How you can perform browser redirection?
Can we use ServletOutputStream object from a JSP page?
How can I invoke a JSP error page from a servlet?