By Monica Pawlan
Hundreds of thousands of programmers are looking to examine Java quick, hands-on -- with as little complexity and conception as attainable. For them, necessities of the JavaaA A Programming Language is the ideal start line. in response to Monica Pawlan's wildly-popular net educational, this obtainable, "learn-by-doing" consultant covers all of the basics via strolling via an easy application that delicately grows right into a full-fledged eCommerce software which illustrates Java 2's most crucial programming concepts and ideas. within the first 1/2 the ebook, builders grasp key necessities similar to: development simple consumer interfaces; studying and writing info to records and databases; sending and receiving info throughout networks through RMI and sockets; compiling and working courses; and the variations among purposes, applets, servlets, and JavaServer Pages. subsequent, Pawlan introduces extra complex strategies. in precisely three hundred pages, builders get a whole, exact, real-world grounding in Java -- all they should get effects speedy, and shorten their studying curve as they circulation into extra subtle Java improvement. for each programmer trying to research Java quick and simply.
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Extra info for Essentials of the Java Programming Language: A Hands-On Guide
Using application-specific error text that you provide will also make it much easier to internationalize the application later on because you will have access to the text. txt"); } If you want to make your code even more user friendly, you could separate the write and read operations and provide two try and catch blocks. txt. As an exercise, change the code to handle the read and write operations separately. Give it a try before peeking at the solution. java application, but shows how to use the APIs for handling data in character streams instead of byte streams.
In this example, RemoteServer is started from the /home/zelda/public_html/classes directory. The lines beginning at java should be all on one line with spaces where the lines break. The properties specified with the -D option to the java interpreter command are program attributes that manage the behavior of the program for this invocation. codebase property specifies where the publicly accessible classes are located. hostname property is the complete host name of the server where the publicly accessible classes reside.
2000 12:30:20] Java(TM) Language Basics, Part1, Lesson 5: Writing Servlets The ExampServlet class is declared public so the web server that runs the servlet, which is not local to the servlet, can access it. The ExampServlet class defines a doPost method with the same name, return type, and parameter list as the doPost method in the HttpServlet class. By doing this, the ExampServlet class overrides and implements the doPost method in the HttpServlet class. The doPost method performs the HTTP POST operation, which is the type of operation specified in the HTML form used for this example.