JSP Expression Language (EL) is useful and is evaluated in JSP pages by default since Servlet 2.4. However, sometimes we would not want to evaluate  [ ... ]

Before Java SE 7, we have to write code to create new instances of generic types as follows:   List<Integer> numbers = new ArrayList< [ ... ]

Since Java SE version 1.7 (released on July 2011), developers can use Strings in the switch-case statement. This simple feature had been waiting for [ ... ]

Handling form data represented in HTML page is a very common task in web development. A typical scenario is the user fills in fields of a form and s [ ... ]

To use log4j in a Struts2 application, simply put log4j configuration file (log4j.properties or log4j.xml) under the root of the classpath. For a St [ ... ]

Log4j is a popular and widely-used logging framework for Java development. It’s pretty easy to setup and use log4j in a Spring MVC application, ju [ ... ]

Following is code example of a sample Java web application that demonstrates how to implement file upload functionality based on Apache Common File  [ ... ]

Although it is possible to use Java networking API (by using the interfaces and classes available in the packages java.net and javax.net) to write c [ ... ]

To write Java code that uploads a file from local computer to a remote FTP server, the Apache Commons Net API is a preferred choice of developers. I [ ... ]

Swing provides class javax.swing.JFileChooser that can be used to present a dialog for user to choose a location and type a file name to be saved, u [ ... ]

With the help of Apache Commons Net API, it is easy to write Java code for downloading a file from a remote FTP server to local computer. In this ar [ ... ]

This article describes steps for listing content of a directory on a FTP server using Apache Commons Net API. If you have not been familiar with FTP [ ... ]

This article introduces a utility class that makes a connection to a HTTP server by sending a GET/POST request and receiving response from the serve [ ... ]

This tutorial shows how to implement a Java web application that uploads files to server and save the files into database. Table of content: C [ ... ]

While working with a FTP server using Apache Commons Net API, it’s important to keep in mind that many operations are working based on the working [ ... ]