Difference between ServletConfig and ServletContext in JSP Servlet? Answer

Difference between ServletConfig and ServletContext

ServletContext and ServletConfig these two are the important interface of Servlet API which is used by Java J2EE programmer during web application development. Correct understanding of What is ServletContext and ServletConfig is very important for any J2EE application developer. Apart from that Difference between ServletContext and ServletConfig are a popular Servlet JSP interview questions and mostly asked on both fresher and experienced Java programmer during J2EE interviews. 

Difference between include directive, include action and JSTL import tag in JSP? Answer

There are three main ways to include the content of one JSP into another:

include directive

JSP include action

and JSTL import tag

The include directive provides static inclusion. It adds the content of the resource specified by its file attribute, which could be HTML, JSP, or any other resource at translation time.

Any change you make in the file to be included after JSP is translated will not be picked up by the include directive.

How to escape HTML Special characters in JSP and Java? Example

Escaping HTML special characters in JSP or Java is a common task for Java programmers. There are many ways to escape HTML metacharacters in Java, some of which we have already seen in the last article escaping XML metacharacters in Java.  For those who are not familiar with HTML special characters, there are five e.g. <, >, &, ' and '' and if you want to print them literally just like here, Than you need to escape those characters so < becomes &lt;, > becomes &gt; and so on.