By Jan Graba
Since the second one version of this article, using the net and networks typically has endured to extend at a gorgeous cost. This has resulted in either a rise fashionable for community software program and to advancements within the know-how used to run such networks, with the latter evidently resulting in adjustments within the former. in this time, the Java libraries were up-to-date to maintain with the recent advancements in community expertise, in order that the Java programming language remains to be one of many mainstays of community software program development.
In supplying a truly readable textual content that avoids getting immersed in low-level technical information, whereas nonetheless offering an invaluable, useful advisor to community programming for either undergraduates and busy IT pros, this 3rd variation maintains the craze of its predecessors. To continue its foreign money, the textual content has been up to date to mirror adjustments that experience taken position in Java's community expertise over the last seven years (including the discharge of Java 7), while conserving its amazing positive aspects of various code examples, screenshots and end-of-chapter exercises.
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Extra info for An Introduction to Network Programming with Java: Java 7 Compatible
Exit(1); } } } } For the preceding client–server application to work, TCP/IP must be installed and working. How are you to know whether this is the case for your machine? Well, if there is a working Internet connection on your machine, then TCP/IP is running. In order to start the application, first open two command windows and then start the server running in one window and the client in the other. ) The example screenshots in Figs. 4 show the dialogues between the server and two consecutive clients for this application.
GetLength()); //Step 6. length(),clientAddress, clientPort); //Step 7. send(outPacket); //Step 8. printStackTrace(); } 24 2 Starting Network Programming in Java finally //If exception thrown, close connection. close(); //Step 9. } } } Setting up the corresponding client requires the eight steps listed below. 1. Create a DatagramSocket object. This is similar to the creation of a DatagramSocket object in the server program, but with the important difference that the constructor here requires no argument, since a default port (at the client end) will be used.
J. 1007/978-1-4471-5254-5_3, © Springer-Verlag London 2013 47 48 3 Multithreading and Multiplexing Though the use of threads cannot guarantee that a server will not crash, it greatly reduces the likelihood of it happening by significantly increasing the number of client programs that can be handled concurrently. 1 Thread Basics A thread is a flow of control through a program. Unlike a process, a thread does not have a separate allocation of memory, but shares memory with other threads created by the same application.
An Introduction to Network Programming with Java: Java 7 Compatible by Jan Graba
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