16064626
submission
IndioMan writes:
Python programmers shouldn't get too smug. While many people agree that Python is designed in a way that makes it a highly readable language, there can still be problems with legacy, untested Python code too. Porting legacy Perl to Python can be a daunting task. In this article, learn some of the theory behind dealing with legacy code, including what not to do.
16061346
submission
IndioMan writes:
The shift toward multicore processing has fueled an interest in concurrent programming models like fork/join, actors, agents, and executors. While these models originated within different programming languages, many of them are encapsulated in GPars, a Groovy-based concurrency library. With Alex Miller as your guide, learn how to resolve concurrency problems using techniques drawn from both the functional and object-oriented programming worlds — and do it all using Groovy's familiar, Java-friendly syntax.
15992258
submission
IndioMan writes:
The IBM AIX operating system provides a highly scalable IT infrastructure for client workloads. Learn about the latest version, AIX 7.1, an open standards-based UNIX operating system, that includes significant new capabilities for virtualization, security features, availability features, and manageability.
15777388
submission
IndioMan writes:
Security always requires a multi-layered scheme. SSH is a good example of this. Methods range from simple sshd configuration through the use of PAM to specify who can use SSH, to application of port-knocking techniques, or to hide the fact that SSH access even exists. Applying these techniques can make life much harder for possible intruders, who will have to go past three unusual barriers.
15742704
submission
IndioMan writes:
Explore techniques for handling two of the most common data formats used on the Internet—XML and JavaScript Object Notation (JSON)—on the Android platform. The first part covers the basics of XML and JSON and shows you how to build an Android application that parses and displays a Twitter status-update feed provided in both formats. Part 2 examines the manner in which Webkit-hosted JavaScript code exchanges data with Java code in an Android application.
15556766
submission
IndioMan writes:
Learn how to check the integrity of your Linux filesystems, monitor free space, and fix simple problems. Use the material in this article to study for the Linux Professional Institute (LPI) 101 exam for Linux system administrator certification—or just to check your filesystems and keep them in good working order, especially after a system crash or power loss.
15555636
submission
IndioMan writes:
Java virtual machines come with hundreds of command-line options, which more experienced Java developers can use to tune the Java runtime. Learn how to monitor and log compiler performance, disable explicit garbage collection (System.gc();), extend the JRE, and more.
15517446
submission
IndioMan writes:
Here is a 4 part demo series to show you how to implement a solution stack (Rational Application Developer, WebSphere Application Server, and DB2 Express-C) on Ubuntu Linux, as well as how to integrate them in a Java application.
15482454
submission
IndioMan writes:
This two-part tutorial introduces the structure, syntax, and programming paradigm of the Java language and platform. In Part 1, learn the essentials of object-oriented programming on the Java platform, including fundamental Java syntax and its use. In Part 2 explore the more-sophisticated syntax and libraries you will need to develop complex, real-world Java applications.
15479110
submission
IndioMan writes:
PowerHA for AIX is the new name for HACMP (High Availability Cluster Multiprocessing). HACMP is an application that makes system fault resilient and reduces downtime of applications. This article introduces PowerHA and provides a detailed explanation of how to configure a two node cluster. This document is very useful for understanding PowerHA and setting up a two node cluster.
15345308
submission
IndioMan writes:
Bazaar is used to produce the Ubuntu Linux distribution, which is an enormous software project with thousands of components. If you're using a UNIX or Linux system, chances are that your distribution offers a pre-built Bazaar package. Bazaar is flexible enough to accommodate Subversion — a centralized system and Git — a decentralized system. This article introduces you to Bazaar's many appealing features.
15238324
submission
IndioMan writes:
C++ is usually synonymous with object-oriented programming (OOP), and further replenished in no small measure by popular technical literature. This article tries something different—functional programming with C++ using the open source FC++ library from Yannis Smaragdakis and Brian McNamara. Learn how you can use FC++ to implement basic functional programming.
15234580
submission
IndioMan writes:
In last month's installment, I showed examples of using domain-specific languages (DSLs) to harvest idiomatic patterns. Internal DSLs are possible but cumbersome in the Java language because of its restrictive syntax. This article covers some of the capabilities you can exploit and issues you'll encounter when using Groovy to build internal DSLs.
15124670
submission
IndioMan writes:
Several tools exist to Resizing Linux partitions, but there are a number of potential pitfalls and restrictions that can make the task more difficult than it might at first seem. This article guides you through the task of resizing Linux partitions, beginning with basic preparations and moving on to common resizing scenarios using graphical user interface (GUI) tools.
15085486
submission
IndioMan writes:
As the kernel and user space exist in different virtual address spaces, there are special considerations for moving data between them. Explore the ideas behind virtual address spaces and the kernel APIs for data movement to and from user space, and learn some of the other mapping techniques used to map memory.
