Core Java| JSP| Servlets| XML| EJB| JEE5| Web Services| J2ME| Glossary| Questions?

Search Tutorials

Latest Questions

no driver
i am having problem connecting to DB2 database fro netbeans: program: import java.sql.*; import java.lang.*; i
min project with vb
i have do the min project with VB Frantend and oracle backend
Some additions for my previous question
This is the question I posted several hours ago: "I'm trying to write a program that has a text field for input, two bu
Writing a GUI program
Hello everyone! I'm trying to write a program that has a text field for input, two buttons and the output text area. A
How to display current date in textbox
Hi guys, I'm really need your help. This is my source code. <% if (status.equals("pending") && penanda==0)
Methods in Java
Hello. Currently i am involved in a group project and we have each been given a specific part of code to create our joi
how to record qvga video using j2me
hello if it is possible how i can record qvga video usin j2me?
how to record qvga video using j2me
hello if it is possible how i can record qvga video usin j2me?
streams
a program which illustrate the use of streams
runtime polymorphism
how run time polymorphism is achieved
All Questions...

Comments

Interface in JSP
In interface none of its methods are implemented. All the methods are abstract. There is no code associated with an interface.

Interface in JSP

In interface none of its methods are implemented. All the methods are abstract. There is no code associated with an interface. In an interface all the instance methods are public and abstract. Interfaces are always implemented in the class. They provide extra behaviors to the class.

In this example we are going to make use of interface in our jsp application.

The code of the program is given below:

<html>
    <head>
        <title>Creating a Java Interface</title>
    </head>

    <body>
        <h1>Creating a Java Interface</h1>
        <%!
            javax.servlet.jsp.JspWriter jw;
	    interface Add 
            {
                int add() throws java.io.IOException;
            }
            class Addition implements Add
            {
		int a = 10;
		int b = 20;  
       public int add() throws java.io.IOException
        {
		  jw.println("The addition of  " +  a + "  and  "  
           +  b + "  is equal to  ");
                return (a+b);
                }
            }
        %>     
        <%
            jw = out;     
	    Addition addition = new Addition();
            int a = addition.add();
			out.println(a);
        %>
    </body>
</html>

The output of the program is given below:

Download this example:

ť View all related tutorials

Related Tags: java c library error ide io vi core tag lock this id action block write invoke like handle if solution

Leave your comment:
Name:
Email:
URL:
Title:
Comments:
Enter Code:
	Note: Emails will not be visible or used in any way, and are not required. Please keep comments relevant. Any content deemed inappropriate or offensive may be edited and/or deleted. No HTML code is allowed. Line breaks will be converted automatically. URLs will be auto-linked. Please use BBCode to format your text.