What is the default value of session attribute in JSP?

true
This attribute checks whether JSP page is in a particular HTTP session or not. It can have true or false value. Default value is true.

What is the default value for char?

u0000
Default Values

Data Type Default Value (for fields)
double 0.0d
char
String (or any object) null
boolean false

What is Session attribute in JSP?

The session attribute indicates whether or not the JSP page uses HTTP sessions. A value of true means that the JSP page has access to a builtin session object and a value of false means that the JSP page cannot access the builtin session object.

Which of the following is true for session attribute in JSP?

Q 13 – Which of the following is true about session Attribute? A – The session attribute indicates whether or not the JSP page uses HTTP sessions.

What is ‘\ u0000 in Java?

is the null character in Unicode. It’s different from null in Java, but has a similar meaning. @testerjoe2 Your code means that if the path contains the null character, it’s status is INVALID , otherwise it’s CHECKED .

What is default value of char array in Java?

For type char, the default value is the null character, that is, ” .

What is Jakarta El used for?

The Jakarta Expression Language (EL; formerly Expression Language and Unified Expression Language) is a special purpose programming language mostly used in Jakarta EE web applications for embedding and evaluating expressions in web pages.

How can we use session variable in JSP?

Session Implicit Object in JSP with examples

  1. setAttribute(String, object) – This method is used to save an object in session by assigning a unique string to the object.
  2. getAttribute(String name) – The object stored by setAttribute method is fetched from session using getAttribute method.

What is autoFlush in JSP?

The autoFlush attribute specifies whether the buffered output should be flushed automatically when the buffer is filled, or whether an exception should be raised to indicate the buffer overflow. A value of true (default) indicates automatic buffer flushing and a value of false throws an exception.

What is the session attribute in JSP?

The session attribute indicates whether or not the JSP page uses HTTP sessions. A value of true means that the JSP page has access to a builtin session object and a value of false means that the JSP page cannot access the builtin session object.

What is JSP info attribute in JSP?

By default, a container automatically imports java.lang.*, javax.servlet.*, javax.servlet.jsp.*, and javax.servlet.http.*. The info attribute lets you provide a description of the JSP. The following is a coding example − The isThreadSafe option marks a page as being thread-safe. By default, all JSPs are considered thread-safe.

What is HttpSession object in JSP?

The JSP engine exposes the HttpSession object to the JSP author through the implicit session object. Since session object is already provided to the JSP programmer, the programmer can immediately begin storing and retrieving data from the object without any initialization or getSession ().

Why do we add the <%@ page session=false> directive?

We add the <%@ page session=”false” %> directive so that a session is not created on each poll. If we did not use this directive, we would have thousands of sessions created over 4 hours time for no reason.