d) The destroyer() method is called after the filter has executed. Explanation: destroy() is an end of life cycle method so it is called at the end of life cycle.
Which method of servlet gets called?
Q 7 – When service method of servlet gets called? A – The service method is called when the servlet is first created.
How servlet destroy event is handled?
The servlet is in new state if servlet instance is created. After invoking the init() method, Servlet comes in the ready state. In the ready state, servlet performs all the tasks. When the web container invokes the destroy() method, it shifts to the end state.
Which method is called for unloading the servlet?
Call the Servlets destroy() Method
When a servlet is unloaded by the servlet container, its destroy() method is called. This step is only executed once, since a servlet is only unloaded once.
What is the difference between servlets and applets?
A servlet is a Java programming language class used to extend the capabilities of a server. Applets are executed on client side. Servlets are executed on server side. Applets are used to provide interactive features to web applications that cannot be provided by HTML alone like capture mouse input etc.
What is servlet in Java?
A servlet is a Java programming language class that is used to extend the capabilities of servers that host applications accessed by means of a request-response programming model. Although servlets can respond to any type of request, they are commonly used to extend the applications hosted by web servers.
What is doPost and doGet method in servlet?
The doGet() method is used for getting the information from server while the doPost() method is used for sending information to the server.
Which servlet method is called first?
The init Method. The init method is called when the servlet is first created; it is not called again for each user request.
What is request and response in servlet?
Servlet handles various client requests and provides their responses. It provides two interfaces i.e ServletRequest and ServletResponse for this purpose.
What is destroy () method in Java?
The destroy() method is used to stop the execution of thread groups and subgroups after the completion of the run() method, which executes without any cleanup. It can also cause deadlock during thread execution similar to suspend() .
What JSP means?
Jakarta Server Pages (JSP; formerly JavaServer Pages) is a collection of technologies that helps software developers create dynamically generated web pages based on HTML, XML, SOAP, or other document types. Released in 1999 by Sun Microsystems, JSP is similar to PHP and ASP, but uses the Java programming language.
What is the difference between JSP and servlet?
Servlet is faster than JSP. JSP is slower than Servlet because the first step in JSP lifecycle is the translation of JSP to java code and then compile. Servlet can accept all protocol requests. JSP only accept http requests.
Which method is always called before destroy method in java?
The onDestroy() method runs immediately before the activity is destroyed. The onDestroy() method enables you to perform any final cleanup such as freeing up resources. After the onDestroy() method has run, the activity is destroyed.
What is session Tracking?
Session Tracking tracks a user’s requests and maintains their state. It is a mechanism used to store information on specific users and in order to recognize these user’s requests when they connect to the web server. HTTP is a stateless protocol where each request to the server is treated like a new request.
What is the difference between GenericServlet and HttpServlet?
The main difference between GenericServlet and HttpServlet is that the GenericServlet is protocol independent that can be used with any protocol such as HTTP, SMTP, FTP, CGI etc. while HttpServlet is protocol dependent and is only used with HTTP protocol.
Which class includes getSession method?
A. The class HttpServletRequest defines the getSession method.
