What is out Println in JSP?
out , it’s a variable in the effective method that wraps our JSP page. System. out writes to the servlet container’s console (usually a log file); out is a different class entirely which writes to the output stream for the generated response.
Can we use system out Println in JSP?
IN a JSP, out. println *does* write to the JSP page, because “System. out” and “out” are two completely different variables, which you’d see if you printed either of them to the JSP. Or the system console.
What does <% mean in JSP?
<%@ is the directive attribute. You may include a page or may declare a tag-library using <%@ More on it here.
How do you comment out in JSP?
There are multiple way to comment in a JSP file.
- < %– comment –%> A JSP comment. Ignored by the JSP engine.
- An HTML comment. Ignored by the browser.
- < % my code //my comment %> Java Single line comment. Ignored by the Compiler.
- < % my code /** my comment **/ %>
Can we write java code in JSP?
In JSP, java code can be written inside the jsp page using the scriptlet tag.
How can we use alert in JSP page?
The Alert Message contains the code for User Login page that include the ‘LoginName’ and ‘Password’. To apply validation we make use of javascript method in AlertMessage. jsp to validate the LoginName and password. The on submit button in JSP calls a JavaScript’s function validLogin( ).
Which syntax is correct for JSP Scriptlets?
A scriptlet tag is used to execute java source code in JSP. Syntax is as follows: <% java source code %>
Which syntax is used to comment JSP?
How to write a comment in a JSP page?
| S.No. | Syntax & Purpose |
|---|---|
| 1 | <%– comment –%> A JSP comment. Ignored by the JSP engine. |
| 2 | An HTML comment. Ignored by the browser. |
| 3 | <\% Represents static <% literal. |
| 4 | %\> Represents static %> literal. |
What Jstl means?
JavaServer Pages Standard Tag Library
JSTL, which stands for JavaServer Pages Standard Tag Library, is a collection of custom JSP tag libraries that provide common Web development functionality.
What are comments in JSP?
JSP comment marks to text or statements that the JSP container should ignore. A JSP comment is useful when you want to hide or “comment out”, a part of your JSP page.
Can we use Java comments in JSP?
But one should use only comment type 1 and 2 because java documentation suggested. these two comment types (1 & 2) are designed for JSP. When in doubt use the JSP comment.