Within your Java programs, you can create a URL object that represents a URL address. The URL object always refers to an absolute URL but can be constructed from an absolute URL, a relative URL, or from URL components.

A URL takes the form of a string that describes how to find a resource on the Internet. URLs have two main components: the protocol needed to access the resource and the location of the resource. Creating a URL. Within your Java programs, you can create a URL object that represents a URL address.

When the virtual machine creates a URL object, it looks for a protocol handler that understands the protocol part of the URL such as "http" or "mailto". If no such handler is found, the constructor throws a MalformedURLException.

The URLConnection class contains many methods that let you communicate with the URL over the network. URLConnection is an HTTP-centric class; that is, many of its methods are useful only when you are working with HTTP URLs.

Connection to the remote object represented by the URL is only initiated when the URLConnection.connect method is called. When you do this you are initializing a communication link between your Java program and the URL over the network.

This module explains about communicating with web servers using URL and URLConnection class in Java. This module also discusses about how to retrieve information and send information to servers with examples.

Aug 29, 2024 · Java Networking is a concept of connecting two or more computing devices together so that we can share resources. Java socket programming provides facility to share data between different computing devices. Do You Know ? How to perform connection-oriented Socket Programming in networking ? How to display the data of any online web page ?

Learn applications of networking programming in Java. Explore protocols that underlie the Internet, such as TCP/IP and UDP/IP. Work with protocols such as SOAP and REST and send JSON data to the client. Create server applications with symmetric and asymmetric encryptions. Prior working experience of Java Programming is expected.

Feb 24, 2022 · This PDF contains notes on Network Programming of Chapter Five – URL Connections. This note is searched and provided to you by us. Here on this PDF, you can get notes of the topics stated above. If you like this note you can share it with your friends. For more information related to it, you can like and follow our Facebook page.

A URI can identify a resource by its network location, as in a URL, or by its name, number, or other characteristics. The URL class is the simplest way for a Java program to locate and retrieve data from the network.