What is PrintWriter and getWriter in servlet?

PrintWriter: prints text data to a character stream. getWriter :Returns a PrintWriter object that can send character text to the client.

What is the use of PrintWriter out response getWriter ()?

getWriter(); returns the object of PrintWriter Class, in which print(String args) method is declared to print any thing on the browser’s page as a response. If you use a get method, you obtain a reference to whatever that object already has as a field.

What is PrintWriter in Java servlet?

Java PrintWriter class is the implementation of Writer class. It is used to print the formatted representation of objects to the text-output stream.

What is the use of out Println in servlet?

How in Servlets, out. println writes the html text to container’s response object where normally in System.

What is PrintWriter?

public class PrintWriter extends Writer. Prints formatted representations of objects to a text-output stream. This class implements all of the print methods found in PrintStream . It does not contain methods for writing raw bytes, for which a program should use unencoded byte streams.

What is the purpose of RequestDispatcher object?

The servlet container creates the RequestDispatcher object, which is used as a wrapper around a server resource located at a particular path or given by a particular name. This interface is intended to wrap servlets, but a servlet container can create RequestDispatcher objects to wrap any type of resource.

What is the use of PrintWriter class?

Class PrintWriter. Prints formatted representations of objects to a text-output stream. This class implements all of the print methods found in PrintStream . It does not contain methods for writing raw bytes, for which a program should use unencoded byte streams.

What are the functions of Servlet container?

Q 24. What are the main functions of Servlet container?

• Servlet life cycle management.
• Maintains the interaction between servlet and webserver.
• Providing multithreading support for processing more than one request simultaneously.
• Managing of deployment descriptor web. xml file.

What happen when PrintWriter method receives a string type argument?

print() method prints a string. If the argument is null then the string “null” is printed. Otherwise, the string’s characters are converted into bytes according to the platform’s default character encoding, and these bytes are written in exactly the manner of the write(int) method.

What is the purpose of the RequestDispatcher in Java servlets?

The RequestDispatcher interface provides the facility of dispatching the request to another resource it may be html, servlet or jsp. This interface can also be used to include the content of another resource also. It is one of the way of servlet collaboration.

What is the use of RequestDispatcher in servlet?