What are the life cycle methods of servlet?
Life Cycle of a Servlet (Servlet Life Cycle)
- Servlet class is loaded.
- Servlet instance is created.
- init method is invoked.
- service method is invoked.
- destroy method is invoked.
What is the life cycle of a servlet Mcq?
MCQs: Which default exception handler that performs the following tasks: 1: Prints out exception description. 2: Prints the stack trace (Hierarchy of methods where the exception occurred). 3: Causes the program to terminate.
What is a servlet in Java with example?
Simply put, a Servlet is a class that handles requests, processes them and reply back with a response. For example, we can use a Servlet to collect input from a user through an HTML form, query records from a database, and create web pages dynamically.
What is servlet explain in detail?
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 servlet What are the different types of servlet?
There are two main types of Servlet. They are Generic and HTTP servlets. We can use the constructor method to initialize the Servlets with the help of init() and the destructor method to remove the servlet from the resources using destroy().
What is servlet explain its types?
What is servlet and its types?
What are the two main types of servlet?
There are two main servlet types, generic and HTTP:
- Generic servlets. Extend javax. servlet. GenericServlet. Are protocol independent.
- HTTP servlets. Extend javax. servlet. HttpServlet. Have built-in HTTP protocol support and are more useful in a Sun Java System Web Server environment.
How many types of servlets are there in Java?
How many servlets are there in Java?
There can be any number of servlets in a web application.It is not like that there should be only one servlet in a web application. If not so wat is there use of Servlet Context then. . But in general you can have any number of servlets in a web application.
What is JSP and its life cycle?
A JSP life cycle is defined as the process from its creation till the destruction. This is similar to a servlet life cycle with an additional step which is required to compile a JSP into servlet.
Can you explain lifecycle of JSP explain in detail?
What are types of servlet in Java?
What is types of servlet in Java?
What is servlet life cycle?
Servlet life cycle can be defined as the stages through which the servlet passes from its creation to its destruction. Life cycle methods are those methods which are used to control the life cycle of the servlet.
How servlet is terminated in Java?
The servlet is terminated by calling the destroy () method. Finally, servlet is garbage collected by the garbage collector of the JVM. Now let us discuss the life cycle methods in detail.
Which method is used to initialize the Servlet in Java?
The init method is used to initialize the servlet. It is the life cycle method of the javax.servlet.Servlet interface. Syntax of the init method is given below: The web container calls the service method each time when request for the servlet is received.
What is servlet in Java?
We know that, javax.servlet.Servlet is the super interface, having the methods… In the first request, the container will creates the object of the servelt and executes the init () method first, remember this init () method will be executed only once…