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A java servlet is the heart of a Java Enterprise web application. It contains most of the business logic that the web application needs. The initial web application technologies did not have capabilities to support dynamic contents in a secure and efficient way. Java Servlets were created to address this drawback. Servlets are used in many types of Java EE applications using technologies like Struts, MVC etc.
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What is the use of Servlet in java?
Java Servlet is used for Server Side programming for developing Web Applications. It easily employs Database Connectivity. We can also use JSP however it cannot replace a Java Servlet.
Differentiate Java applet and Java servlet?
Java Applet is an application designed to transmit on internet to execute on java compatible browsers. Java Servlet is a server side program used to provide services to clients.
What is the difference between networking and servlet in java?
Networking is a basic action. A servlet in Java is a single part of networking, a single task.
Can you use constructor in servlet?
Yes you can but it is not required. A Servlet is nothing but another .java file and all rules that are applicable to standard Java classes are applicable to them. Note: Even if you write a constructor in a servlet, it will not get executed.
Can insert javascript coding in servlet?
No. Javascript code can be present inside a JSP but not inside a servlet. A Servlet is a pure java class.
How do you compile servlet in java using tomcat?
Tomcat is a server. It is used to deploy and run Servlets and not compile them. A Servlet is a java file and has to be compiled just like any other Java Class.
What is THE definition of advance java?
Advance java is the implementation of servlet in web pages.
How do you give connection between HTML and java servlet?
You cannot. HTML is a static file and it cannot interact with a Java Servlet. A Servlet can always redirect to a HTML page but the other way round cannot happen.
What is JAVA Servlet Development Kit?
Java Servlet Development Kit is an integrated development kit used to build, test, and deploy Java Servlet applications. JSDK allows most standard Web server such as Netscape servers, IIS, Apache and others to load servlets . JSDK is a suite of software for easing the development of Java servlets.
What are Perl PHP and Java Servlet's?
Perl, php and Java are all examples of programming languages.
Why servlet has no constructor?
Because it is not a regular Java Class that is executed by a JVM. It is a special Java class that is executed by the Web Container which initializes and loads the servlet and the service methods get executed everytime it receives a request.
What is java servlet chaining?
Servlet Chaining means the output of one servlet act as a input to another servlet. Servlet Aliasing allows us to invoke more than one servlet in sequence when the URL is opened with a common servlet alias. The output from first Servlet is sent as input to other Servlet and so on. The Output from the last Servlet is sent back to the browser. The entire process is called Servlet Chaining.
