List of Development tools for Java applications

There are a number of different kinds of tools to facilitate the workings of complex Java applications. Some of the most popular and well-known development tools are as follows:

ANTLR: Known as Another Tool for Language Recognition, this language tool offers a framework for building compilers, interpreters, translators and recognizers from different kinds of grammatical descriptions that contain actions in different target languages.

Apache Abdera: Apache Abdera is a simple serve based framework that acts as a server side filter and checks requests and even takes care of security concerns.

Apache DS: This is an embedded directory server that offers directory solutions, which are entirely written in Java.

CGLIB: This is a high performance and powerful code generation library, which is utilized, to extend Java classes and even executes interfaces at runtime.

JEXL: This is also a library meant to help in implementing dynamic and scripting characteristics in frameworks and applications.

Advantages of tools

There are many advantages related to the usage of java application development tools. These tools help in serving a number of functions and can prevents the java developer from creating complicated coding each time a particular feature is required. These java tools need to be downloaded and configured according to the application and one can start using them immediately. They come with a variety of choices and options thereby ensuring java developers get the option to customize and set the preferences according to the requirements of the application. Java application development tools truly help in simplifying the development of various kinds of applications.

Danish Kanojia

Introduction

Wireless communications is a huge field, encompassing everything from radio and television broadcasting through pagers, mobile phones, and satellite communications. The field of mobile phones is expanding very fast at the same time that standards and protocols are being adopted, used, updated, and sometimes discarded.

Platform and OS used by a mobile phone are as Follows:

Symbian is an operating system for cell phones. Later versions of Symbian do support J2ME. Actually Symbian is the company name, its a joint venture originally set up by Ericsson, Nokia and Psion to develop an industry standard operating system for mobile multimedia terminals. Symbian is currently owned by Ericsson (15.6%), Nokia (47.9%), Panasonic (10.5%), Samsung (4.5%), Siemens AG (8.4%), and Sony Ericsson (13.1%).
Windows Mobile is Microsoft’s mobile solution. This platform is aimed at relatively high-end devices and developers with Windows expertise. ex-imate
BREW is a C++ based framework that has support from Verizon. Developers for this platform can rely upon the phone carrier for billing and deployment. However, the certification process required for such support is an obstacle for small companies. IBM has built a JVM for BREW.
WAP is an excellent cell phone platform. Some form of it is supported on almost all modern phones; this is a strong selling point. The markup which sits on top of WAP 2.0 is XHTML. Due to that fact, there is very little caching or data validation that can be done on the client.
J2ME is a Java based platform for cell phones. It includes everything needed to solve the traffic congestion service problem set: a GUI, persistent data storage, and network access. It is supported by a majority of cell phone carriers in the US, has no licensing issues, and is well documented.

Overview of the Java 2 Platform

The Java 2 Platform comprises three elements:

The Java programming language is syntactically similar to C++ but differs fundamentally. While C++ uses unsafe pointers and programmers are responsible for allocating and freeing memory, the Java programming language uses type safe object references, and unused memory is reclaimed automatically. Furthermore, the Java programming language eschews multiple inheritance (a likely source of confusion and ambiguity in C++) in favor of a cleaner construct, interfaces.
A virtual machine forms the foundation of the Java platform. This architecture offers several attractive features: The virtual machine can be implemented to run a top a variety of operating systems and hardware, with binary-compatible Java applications operating consistently across many implementations. In addition, the virtual machine provides tight control of executed binaries, enabling safe execution of untrusted code.
Finally, an extensive set of standard application programming interfaces(APIs) rounds out the Java platform. These support almost everything you might want your applications to do, from user interface through cryptography, from CORBA connectivity through internationalization.

Taken together, the Java language, Java virtual machine1, and Java APIs compose the Java platform. Moreover, the Java platform is designed to encompass a wide range of computer hardware, everything from smart cards through enterprise servers. Therefore, the Java platform comes in three flavors:

Java 2, Standard Edition (J2SE) is designed for desktop computers. Most often it runs on top of OS X, Linux, Solaris, or Microsoft Windows.

Java 2, Enterprise Edition (J2EE) is a comprehensive platform for multiuser,  enterprise-wide applications. It is based on J2SE and adds APIs for server-side computing.

Java 2, Micro Edition (J2ME) is a set of technologies and specifications developed for small devices like pagers, mobile phones, and set-top boxes. J2ME uses subsets of J2SE components, such as smaller virtual machines and leaner APIs.

Overview of J2ME

Unlike J2SE, J2ME is not a piece of software, nor is it a single specification. This difference can be confusing, even for developers who are already familiar with J2SE. Instead, J2ME is a platform, a collection of technologies and specifications that are designed for different parts of the small device market. Because J2ME spans such a variety of devices, it wouldn’t make sense to try to create a one-size-fits-all solution.

J2ME, therefore, is divided into configurations, profiles,and optional packages.

J2ME has two main branches.The first is based on the Connected, Limited Device Configuration (CLDC). This configuration is for small wireless devices with intermittent network connections, like pagers, mobile phones, and Personal Digital Assistants (PDAs). The other major branch of the J2ME tree is based on the Connected Device Configuration (CDC). This configuration is for larger devices (in terms of memory and processing power) with robust network connections. Set-top boxes and internet appliances are good examples of CDC devices.

Why Java on Cellphones?

If your cellphone already supports WML or another markup language (like HDML or Compact HTML), is there any advantage to being able to run Java programs on it as well? What can a Java program do that a set of WML decks can’t?

The first advantage is that Java is a proper programming language, in the procedural/object-oriented sense, and is used on a wide variety of platforms. WML is a declarative language, to which you graft some procedural logic using WMLScript, and is used only on cellphones. Java is more suited for complicated programming tasks.

The second advantage is that Java lets you work offline. With a Java-enabled cellphone it’s possible to download and install an application that you can then run without incurring connection charges, something you can’t really do when you’re browsing websites with the phone’s microbrowser. You can even run applications when you’re out of coverage, something that may be foreign to Europeans but something that we North Americans — with our vast geographical areas and competing, incompatible networks — have to deal with on a regular basis.

Of course, you can work offline to a degree with WML by using cached decks, but only if the decks are designed to be cached. And you really don’t have much control over what gets cached, since it’s all under the control of the browser and the deck creator.

Building a Java application

There are two files needed for a J2ME application. One is the jar file, the typical zipped archive of classes and resources. The other is the jad file, the jad file contains information about the midlet (A MIDlet is a Java program for embedded devices, more specifically the Java ME virtual machine) which is used by the phone on installation.

Popular java applications for mobiles

Opera Mini: the revolutionary browser for nearly any mobile phone.

MemoryUp Personal is a handy mobile RAM monitoring & boosting tool specially designed for smartphone users

The Moblica Picasa photo browser enables you to view multiple public and private Picasa Web Albums and search for photos from your Internet enabled mobile device

Gmail for mobile 2.0 is designed to be more reliable in low signal areas and provides basic offline support for phones like the Nokia N95, Sony Ericsson W910i, and BlackBerry Curve

Java EE (Java Platform, Enterprise Edition). Java Training enterprise version help you develop and deploy portable, robust, scalable, and secure server-side Java applications. Building on the foundation of Java SE, Java EE provides Web services, component-model, management, and communications APIs for implementing enterprise class SOA and Web 2.0 applications.

I don’t think that it will be possible to extract any installation file from the mobile phone. As you have installed Google Map from the internet with the help of GPRS, you need to again download the same file with the help of internet. But, for this time you need to save that jar file on your mobile phone, so that your can use it for your future use. So, just make use of internet Java Training for getting that jar file and save it.

A proposal Java Training describing requirements and suggested changes to an API will be made to the expert group responsible for the pertinent API. If the changes can be agreed to and can be adopted in a maintenance release in a timely fashion, the Games Profile expert group will work closely with the other expert group to produce the change. The Games Profile would then incorporate the maintenance revision of the existing API by reference.

“Monitor and diagnose performance in Java SE 6″ describes performance and monitoring enhancements in Java SE 6. “Create rich applications with Java Training FX Script” introduces a scripting language that runs on top of Java SE 6 and makes it easy to code sophisticated user interfaces. The two-part article “Invoke dynamic language dynamically” introduces a Java SE 6 API that enables Java code to execute dynamic scripting code, and vice versa. (See How does Java technology relate to dynamic languages and functional programming? below, for more information on using scripting languages with the Java platform.)

“Get to know Java EE 5″ and “Java EE 5: Power and productivity with less complexity” introduce you to the latest version of the Java EE platform. Check out The Spring series to learn about a popular framework for building build lightweight, robust Java EE applications.

Java ME (Java Platform, Micro Edition). Java Training provides an environment for applications running on a broad range of mobile and embedded devices, such as mobile phones, PDAs, TV set-top boxes, and printers. The Java ME platform includes flexible user interfaces, a robust security model, a broad range of built-in network protocols, and extensive support for networked and offline applications that can be downloaded dynamically. Applications based on Java ME specifications are written once for a wide range of devices yet exploit each device’s native capabilities.

Learn more in the comprehensive Java Training four-part series of two tutorials and two companion articles that focus on J2ME and the Mobile Information Device Profile (MIDP).

Fresherlab.com is a young organization, based at India’s IT hub, Bangalore.
It’s a dynamic and competitive world with full of ups and downs in IT sector and therefore; the fresh engineers require just more than theoretical knowledge to get themselves ready for the industry.

Why do people need JAVA?

There are lots of applications and websites that won’t work unless you have Java installed, and more are created every day. Java is fast, secure, and reliable. From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet, Java is everywhere!

Characteristics of JAVA

The programs you create are portable in a network
The code is robust, here meaning that, unlike programs written in C++ and perhaps some other languages, the Java objects can contain no references to data external to themselves or other known objects.
Java is object-oriented, which means that, among other characteristics, an object can take advantage of being part of a class of objects and inherit code that is common to the class.
In addition to being executed at the client rather than the server, a Java applet has other characteristics designed to make it run fast.
Relative to C++, Java is easier to learn. (However, it is not a language you’ll pick up in an evening!)

Difference between JAVA and JAVASCRIPT

JavaScript should not be confused with Java. JavaScript, which originated at Netscape, is interpreted at a higher level and is easier to learn than Java, but lacks some of the portability of Java and the speed of bytecode. Because Java applets will run on almost any operating system without requiring recompilation and because Java has no operating system-unique extensions or variations, Java is generally regarded as the most strategic language in which to develop applications for the Web. (However, JavaScript can be useful for very small applications that run on the Web client or server.)

Editions

Sun has defined and supports four editions of Java targeting different application environments and segmented many of its APIs so that they belong to one of the platforms. The platforms are:

Java Card for smartcards.
Java Platform, Micro Edition (Java ME) — targeting environments with limited resources.
Java Platform, Standard Edition (Java SE) — targeting workstation environments.
Java Platform, Enterprise Edition (Java EE) — targeting large distributed enterprise or Internet environments.

Download

Java is free to download. You can get the latest version at http://java.com.

If you are building an embedded or consumer device and would like to include Java, please contact Oracle for more information on including Java in your device.

Why must you stay updated?

The latest Java version contains important enhancements to improve performance, stability and security of the Java applications that run on your machine. Installing this free update will ensure that your Java applications continue to run safely and efficiently.

Overall JAVA is a must for internet users to ensure a rich and wonderful experience on the web !

Java EE (Java Foundation, Enterprise Edition). Java Training business version assist you to create and deploy transportable, effective, scalable, and secure server-side Java applications. Making around the foundation of Java SE, Java EE delivers Net services, component-model, supervision, and communications APIs for applying company course SOA and Web 2. applications.

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A proposal Java Training describing demands and suggested changes to an API will likely be created towards qualified group responsible for the pertinent API. When the improvements is usually agreed to and is usually adopted in the preservation release in a timely fashion, the Games Profile expert group will work closely with all the other expert party to generate the change. The Online games Report would then incorporate the preservation revision of the existing API by reference.

“Monitor and diagnose performance in Java SE 6″ describes performance and monitoring enhancements in Java SE 6. “Create wealthy applications with Java Training FX Script” introduces a scripting language that runs on major of Java SE 6 and can make it effortless to code superior individual interfaces. The two-part content “Invoke vibrant language dynamically” introduces a Java SE 6 API that allows Java code to execute vibrant scripting code, and vice versa. (See How does Java technologies relate to vibrant languages and functional programming? below, for more information on utilizing scripting languages with all the Java foundation.)

“Get to understand Java EE 5″ and “Java EE 5: Energy and productivity with a lesser amount of complexity” introduce you to the most current version with the Java EE base. Examine out The Spring sequence to discover about a well-liked framework for making develop lightweight, strong Java EE applications.

Java ME (Java Foundation, Micro Edition).<br> Java Training provides an natural environment for applications operating on the broad array of mobile and embedded equipment, just like mobile cell phones, PDAs, Television set-top boxes, and printers. The Java ME program comes with flexible consumer interfaces, a sturdy protection type, a broad selection of built-in network protocols, and extensive support for networked and offline applications that could be downloaded dynamically. Applications depending on Java ME specs are written the moment for just a wide selection of equipment nonetheless exploit every device’s native capabilities.

Find out far more in the thorough Java Training four-part string of two tutorials and two companion content articles that focus on J2ME plus the Mobile Data Gadget Report (MIDP).

Fresherlab.com is a young organization, based at India’s IT hub, Bangalore.
It’s a dynamic and competitive world with full of ups and downs in IT sector and therefore; the fresh engineers require just more than theoretical knowledge to get themselves ready for the industry.

Mainly three languages are used and they are PHP programing, ASP or VB dot Net programing and the Java Programing. This article doesn’t aim at comparing these languages as they all are rich by their own way and used with great faith. This article aims at exploring the advantages of the language.

Java is a high-level object-oriented programming language, influenced in various ways by C, C++, and Smalltalk, with ideas borrowed from other languages as well and was originally developed by James Gosling at Sun Micro-systems and released in 1995 as a core component of Sun Micro-systems Java platform. It is proven that Java is a versatile programming language which is used in mobile phone applications on the down ends as well as on the upper end, Java is used in highly performing servers and in the super computers.

Despite many criticisms, Java is generally understood to be the most popular general-purpose computing language in use today. It is a widely used standard in enterprise programming, and in 2005, it replaced C++ as the language most used by projects on Source Forge.

Benefits of Java

1. Complex dynamic web applications are possible in Java programming.
2. Java is multi threaded programming language so is used in high performance applications.
3. As Java applets are platform independent, it can easily be accessed by software developers.
4. Users do not keep the fear for heavy license fees as Java is an open source language.
5. EJB (Enterprise Java Beans) and RMI (Remote method Invocation) are the globally recognized Java architecture for distributed applications.
6. Automatic garbage collection is possible in Java applications.
7. As Java is a platform independent language, the codes which is written Java, can be run in different platforms.
8. Java is a highly secured, robust and portable programming language in nature.
9. In the database end, Java can use all kind of databases (free and paid) according to the client’s requirements.
10. DAO, CORBA, Hibernate are widely recognized Java architectures which supports internationalization (i18n) for business enterprise applications.
11. Java has the set of well-designed, intuitive and multi tasking APIs which help the Java programmers to do better coding without any hassle.

The computer world currently has many platforms. This has its pros and cons. On the one hand it gives more choices to people; on the other hand it becomes more and more difficult to produce software that runs on all platforms. With its Java Virtual Machine and API, the Java Platform provides an ideal solution to this. The Java Platform is designed for running highly interactive, dynamic, and secure applets and applications on networked computer systems.

Being interactive, dynamic and architecture-neutral, the Java Platform has benefits not only for the developer and support personnel, but also for the end user. For the end users, the platform provides live, interactive content on the World Wide Web, with just-in-time software access. Applications are readily available on all operating systems at once. Users do not have to choose operating systems based on the applications, they can run the applications on their favorite machines.

Developers can develop applications on one platform to deliver to that same platform — the Java Platform, which is available on a wide variety of operating systems and hardware platforms. This much reduces the developing cost. For support personnel, version control and upgrades are much simplified because Java-enabled application can be kept in a central repository and served from there for each individual use.

Java, in the context of software, means numerous computer software products and specifications. Taken together these provide a system for developing application software and deploying it in a cross platform environment. Java is provided by Sun Microsystems. Computer Software, or simply software, refers to digital data which can be stored, processed and displayed by a computer. JavaEE application development is software designed to help the user perform a particular task.
Java finds application on a wise range of computing platforms. These range from super – computers and enterprise servers on the high end to mobile cell phones and embedded devices on the low end. Java applets are used in desktop computers to obtain secure World Wide Web services. However it is not commonly used on desktops. Java is most widely used in web servers, mobiles and enterprise applications.
Java EE refers to Java Enterprise Edition. It is the industry standard for developing robust, portable, scalable and secure server side Java applications. This encompasses the Java Standard Edition or Java SE and other APIs which are useful for applications related to multi tier client server enterprise like web services, component model, management, and communication APIs. These features make it the standard edition in the industry for implementing enterprise class service oriented architecture (SOA) and Web 2.0 applications. Apache is the general term used to denote the Apache HTTP Web Server software which played a key role in the initial development of the World Wide Web. Application development with apache has been most widely used HTTP Server software since April 1996.

Development

The Apache Tomcat open source application server is used to develop Java EE application. Tomcat is based on how Java Server Pages (JSP) and Java Servlet specifications were originally implemented. These specifications were donated to the Apache Software Foundation in the year 1999. The participation of Sun Microsystems in the development of Apache Tomcat is a continuous process. The focus of this process is to keep Tomcat updated with the new versions that keep coming out of the Java Community Source Process (SM). The precise role of Sun Microsystems is to adapt and integrate the current version of the Tomcat source code (current at that point of time) into the new releases of the Java Enterprise Edition.
Apart from this, Apache Geronimo uses Open JPA for providing Java Persistence API to Java EE applications deployed in the server. In spite of being a part of EJB 3.0, JPA is independent of it. Therefore, JPA can be used in Java SE, web and ejb applications in the same uniform manner. The JSF application has an ejb application and a web application. The ejb application uses JPA to manipulate entities in the database, while the java development with apache uses JSF to look up ejbs that trigger operations on the entities. An embedded derby database, which comes with Geronimo, is used. Environments required to develop, deploy and run the said application include Sun JDK 5.0+ (J2SE 1.5), Web Tools Platform (WTP) 2.0.1, Data tools Platform (DTP) 1.5.1, Apache Geronimo 2.1, Eclipse Modeling Framework (EMF ) 2.3.1 etc.

In some procedural language, you could even obtain the memory location of a data structure. Armed with this location, you could read and write to the data at a later time, or accidentally overwrite the contents.

Java is an object-oriented language. An object-oriented language deals with objects. Objects contain both data (member variables) and code (methods). Each object belongs to a particular class, which is a blueprint describing the member variables and methods an object offers. In Java, almost every variable is an object of some type or another – even strings. Object-oriented programming requires a different way of thinking, but is a better way to design software than procedural programming.

There are many popular object-oriented languages available today. Some like Smalltalk and Java are designed from the beginning to be object-oriented. Others, like C++, are partially object-oriented, and partially procedural. In C++, you can still overwrite the contents of data structures and objects, causing the application to crash. Thankfully, Java prohibits direct access to memory contents, leading to a more robust system.
Portable

Most programming languages are designed for a specific operating system and processor architecture. When source code (the instructions that make up a program) are compiled, it is converted to machine code which can be executed only on one type of machine. This process produces native code, which is extremely fast.

Another type of language is one that is interpreted. Interpreted code is read by a software application (the interpreter), which performs the specified actions. Interpreted code often doesn’t need to be compiled – it is translated as it is run. For this reason, interpreted code is quite slow, but often portable across different operating systems and processor architectures.

Java takes the best of both techniques. Java code is compiled into a platform-neutral machine code, which is called Java bytecode. A special type of interpreter, known as a Java Virtual Machine (JVM), reads the bytecode, and processes it. Figure One shows a disassembly of a small Java application. The bytecode, indicated by the arrow, is represented in text form here, but when compiled it is represented as bytes to conserve space. Learn more about these techniques with free white papers at IT Knowledge Hub.

Figure One – Bytecode disassembly for “HelloWorld”

The approach Java takes offers some big advantages over other interpreted languages. Firstly, the source code is protected from view and modification – only the bytecode needs to be made available to users. Secondly, security mechanisms can scan bytecode for signs of modification or harmful code, complimenting the other security mechanisms of Java. Most of all though, it means that Java code can be compiled once, and run on any machine and operating system combination that supports a Java Virtual Machine (JVM). Java can run on Unix, Windows, Macintosh, and even the Palm Pilot. Java can even run inside a web browser, or a web server. Being portable means that the application only has to be written once – and can then execute on a wider range of machines. This saves a lot of time, and money.
Multi-threaded

If you’ve ever written complex applications in C, or PERL, you’ll probably have come across the concept of multiple processes before. An application can split itself into separate copies, which run concurrently. Each copy replicates code and data, resulting in increased memory consumption. Getting the copies to talk together can be complex, and frustrating. Creating each process involves a call to the operating system, which consumes extra CPU time as well.

A better model is to use multiple threads of execution, referred to as threads for short. Threads can share data and code, making it easier to share data between thread instances. They also use less memory and CPU overhead. Some languages, like C++, have support for threads, but they are complex to use. Java has support for multiple threads of execution built right into the language. Threads require a different way of thinking, but can be understood very quickly. Thread support in Java is very simple to use, and the use of threads in applications and applets is quite commonplace.
Automatic garbage collection

No, we’re not talking about taking out the trash (though a computer that could literally do that would be kind of neat). The term garbage collection refers to the reclamation of unused memory space. When applications create objects, the JVM allocates memory space for their storage. When the object is no longer needed (no reference to the object exists), the memory space can be reclaimed for later use.

Languages like C++ force programmers to allocate and deallocate memory for data and objects manually. This adds extra complexity, but also causes another problem – memory leaks. When programmers forget to deallocate memory, the amount of free memory available is decreased. Programs that frequently create and destroy objects may eventually find that there is no memory left. In Java, the programmer is free from such worries, as the JVM will perform automatic garbage collection of objects.
Secure

Security is a big issue with Java. Since Java applets are downloaded remotely, and executed in a browser, security is of great concern. We wouldn’t want applets reading our personal documents, deleting files, or causing mischief. At the API level, there are strong security restrictions on file and network access for applets, as well as support for digital signatures to verify the integrity of downloaded code. At the bytecode level, checks are made for obvious hacks, such as stack manipulation or invalid bytecode. The strong security mechanisms in Java help to protect against inadvertent or intentional security violations, but it is important to remember that no system is perfect. The weakest link in the chain is the Java Virtual Machine on which it is run – a JVM with known security weaknesses can be prone to attack. It is also worth noting that while there have been a few identified weaknesses in JVMs, they are rare, and usually fixed quickly.
Network and “Internet” aware

Java was designed to be “Internet” aware, and to support network programming. The Java API provides extensive network support, from sockets and IP addresses, to URLs and HTTP. It’s extremely easy to write network applications in Java, and the code is completely portable between platforms. In languages like C/C++, the networking code must be re-written for different operating systems, and is usually more complex. The networking support of Java saves a lot of time, and effort.

Java also includes support for more exotic network programming, such as remote-method invocation (RMI), CORBA and Jini. These distributed systems technologies make Java an attractive choice for large distributed systems.
Simplicity and ease-of-use

Java draws its roots from the C++ language. C++ is widely used, and very popular. Yet it is regarded as a complex language, with features like multiple-inheritance, templates and pointers that are counter-productive. Java, on the other hand, is closer to a “pure” object-oriented language. Access to memory pointers is removed, and object-references are used instead. Support for multiple-inheritance has been removed, which lends itself to clearer and simpler class designs. The I/O and network library is very easy to use, and the Java API provides developers with lots of time-saving code (such as networking and data-structures). After using Java for awhile, most developers are reluctant to return to other languages, because of the simplicity and elegance of Java.

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Why do people need JAVA?

There are lots of applications and websites that won’t work unless you have Java installed, and more are created every day. Java is fast, secure, and reliable. From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet, Java is everywhere!

Characteristics of JAVA

The programs you create are portable in a network
The code is robust, here meaning that, unlike programs written in C++ and perhaps some other languages, the Java objects can contain no references to data external to themselves or other known objects.
Java is object-oriented, which means that, among other characteristics, an object can take advantage of being part of a class of objects and inherit code that is common to the class.
In addition to being executed at the client rather than the server, a Java applet has other characteristics designed to make it run fast.
Relative to C++, Java is easier to learn. (However, it is not a language you’ll pick up in an evening)

Difference between JAVA and JAVASCRIPT

JavaScript should not be confused with Java. JavaScript, which originated at Netscape, is interpreted at a higher level and is easier to learn than Java, but lacks some of the portability of Java and the speed of bytecode. Because Java applets will run on almost any operating system without requiring recompilation and because Java has no operating system-unique extensions or variations, Java is generally regarded as the most strategic language in which to develop applications for the Web. (However, JavaScript can be useful for very small applications that run on the Web client or server.)

Editions

Sun has defined and supports four editions of Java targeting different application environments and segmented many of its APIs so that they belong to one of the platforms. The platforms are:

Java Card for smartcards.
Java Platform, Micro Edition (Java ME) — targeting environments with limited resources.
Java Platform, Standard Edition (Java SE) — targeting workstation environments.
Java Platform, Enterprise Edition (Java EE) — targeting large distributed enterprise or Internet environments.

Download

Java is free to download. You can get the latest version at http://java.com.

If you are building an embedded or consumer device and would like to include Java, please contact Oracle for more information on including Java in your device.

Why must you stay updated?

The latest Java version contains important enhancements to improve performance, stability and security of the Java applications that run on your machine. Installing this free update will ensure that your Java applications continue to run safely and efficiently.

Overall JAVA is a must for internet users to ensure a rich and wonderful experience on the web !

For developing enterprise applications Java is the best fit. As it is flexible object oriented programming language for robust enterprise application development. JAVA is having huge acceptability in building enterprise applications. JAVA is having worldwide acceptance and giant community. JAVA has replaced C++ in enterprise application development by its uniqueness of compiling and debugging the code. Java is very useful for not only developers but also for the end users because of its interactive, dynamic and neutral architectural quality. The end users can get live up to date content on the web. JAVA is having a wide community support which is helpful in solving all kind of problems with in very short time.

There are many benefits for using JAVA in enterprise applications. We know that enterprise applications are difficult to develop with sound object oriented knowledge. JAVA is platform independent that makes its favorable for enterprise applications. Some of very popular architecture Enterprise JAVA Beans (EJB) and Remote Method Invocation (RMI) has made JAVA as the best solution in enterprise application. One can run application on multiple platforms as JAVA easily adapts various platforms. JAVA software development makes sure of highly secured and easy coding. Java has well-designed, instinctive and multi tasking APIs that help in to do better-quality hassle free coding. For internationalization JAVA has some popular architecture such as Hibernate, CORBA, and Data Access Object (DAO).