It isn’t correct to compare Java to PHP. Since PHP is a server-side scripting language whereas Java is a general-purpose language. In other words, PHP is only used as a server-side language where Java is both for server-side and desktop programming language. Moreover, Java is compiled and strongly-typed language. On other hand, PHP is a dynamic typed language. Hence, only for server-side programming, the comparison between Java and PHP makes sense.
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Among Computer Science educators, hardly any topic inspires more heated debate than the choice of programming language in the introductory sequence. In the late 80s, the uniformly accepted choice was Pascal, but since then, a host of alternatives have come into use. C++ seems to have emerged as the winner, while Pascal, C, Ada, Scheme, and Modula-3 split most of the remaining market.
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This book shows you how to write programs for the MRG Messaging component of the Red Hat Enterprise MRG distributed computing platforming using the Apache Qpid API. It also gives basic information on downloading and installing MRG Messaging. For more complete information on how to download and install MRG Messaging see the MRG Messaging Installation Guide.
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In 1991, a group of Sun Microsystems engineers led by James Gosling decided to develop a language for consumer devices (cable boxes, etc.). They wanted the language to be small and use efficient code since these devices do not have powerful CPUs. They also wanted the language to be hardware independent since different manufacturers would use different CPUs. The project was code-named Green.
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The Java language has revolutionized the way we program applications for the Internet. Two great ideas make this language so promising:
• Applications written using Java run on multiple different platforms.
• Automatic memory management or garbage collection (GC) comes as a great relief for developers.
Other than these two issues, most of the remaining Java features can be implemented using the majority of other languages. Since its first public release in 1995, the Java language has been maturing and consolidating its position in the market as an increasing number of organizations realize its built-in strengths.
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Most modern programming languages rely on exceptions for dealing with abnormal situations. Although exception handling was a significant improvement over other mechanisms like checking return codes, it is far from perfect. In fact, it can be argued that this mechanism is seriously limited, if not, flawed. This paper aims to contribute to the discussion by providing quantitative measures on how programmers are currently using exception handling. We examined 32 different applications, both for Java and .NET. The major conclusion for this work is that exceptions are not being correctly used as an error recovery mechanism. Exception handlers are not specialized enough for allowing recovery and, typically, programmers just do one of the following actions: logging, user notification and application termination. To our knowledge, this is the most comprehensive study done on exception handling to date, providing a quantitative measure useful for guiding the development of new error handling mechanisms.
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Solutions | J2EE to .NET 2.0 Migration
Since almost two years, there has been an active debate over the endurance of the two giant enterprise platforms, Microsoft‘s .NET and Sun‘s Java 2 Platform, Enterprise Edition (J2EE). Which technology would emerge as the leading platform for developing new web applications?

Now that the combat has settled down a bit, each platform has managed to capture a substantial share of market for itself. In fact, many organizations have arranged for a strategy for one or the other of these frameworks. But many (e.g. those which have large investments in the legacy systems) are still evaluating the merits of the two platforms. The IT personnel in those businesses is questioning as to what extent would choosing .NET or J2EE influence their host strategy, etc.
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This document is designed to accompany the “Eclipse And Java: Using the Debugger” video tutorial, which is available at http://eclipsetutorial.sourceforge.net/. Before starting this tutorial, please download the following files from the website:
? Debugger-Tutorial-Companion-Document.PDF – this document.
? debugger_tutorial_project.zip – zip file for importing the Eclipse “DebuggerTutorial” project. This is done as part of Lesson 1.
? debugger-lesson01.zip through debugger-lesson07.zip – zip files for the 7 lessons in the tutorial
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