Java Support Systems

Java Support:
It is clear from the discussion we had tip to now that the operation of Java and Java-enabled browsers on the Internet requires a variety of support systems. Table lists the systems necessary to support Java for delivering information on the Internet.

          Java Support Systems

Support System                      Deseriptilm
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Internet Connection                           Local computer should be connected to the Internet.

Web Server                                     A program that accepts requests for information and sends the required                       

                                                         documents.

Wehlirowser                                   A program that provides access to WWW and runs Java applets.

lITNIL                                           A language for creating hypertext for the Web.

APPLFT Tag                               For placing Java applets in FITML document.

Java Code                                   Java code is used for defining Java applets                                               

Bytecode                                   Compiled Java code that is referred loin the APPLET tag and transferred to             

                                                  the user computer..

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Hardware And Software Requirement

Java - Hardware And Software Requirement :

Java is currently supported on Windows 95, Windows NT, Sun Solaris, Macintosh, and UNIX machines. Though, the programs and examples in this book were tested under Windows 95, the most popular operating system today, they can be implemented on any of the above systems.

The minimum hardware and software requirements for Windows 95 version of Java are as follows:

• IBM-compatible 486 system

• A hard drive

• Minimum of 8 MB memory

• A CD-ROM drive

• Windows 95 software

• A Microsoft-compatible mouse

• A Windows-compatible sound card, if necessary

HotJava

Hot Java:

HotJava is the Web browser from Sun Microsystems that enables the display of interactive content on the Web, using the Java language. HotJava is written entirely in Java and demonstrates the capabilities of the Java programming language.
When the Java language was first developed and ported to the Internet, no browsers were available that could run Java applets. Although we can view a Web page that includes Java applets with a regular browser, we will not gain any of Java's benefits. HotJava is currently available for the SPARC/Solaris platform as well as Windows 95 and Windows NT. So far as being a Web browser goes, it is nothing special and does not offer anything special that most other Web browsers don't offer. Its biggest draw is that it was the first Web browser to provide support for the .Java language, thus making the Web more dynamic and interactive.

Netscape Navigator

Netscape N:ivigator, from Netscape Communications Corporation, is a general-purpose browser that can run Java applets. With versions available for Windows 95, NT, Solaris and Apple Macintosh, Netscape Navigator is one of the most widely used browsers today.
Netseape Navigator has many useful features such as visual display about downloading process and indication of the number bytes downloaded. It also supports JavaScript, a scripting language used in HTML documents.

Internet Explorer

Internet Explorer is another popular browser developed by Microsoft for Windows 95 and NT Workstations. Both the Navigator and Explorer use tool bars, icons, menus and dialog boxes for easy navigation. Explorer uses a just-in-time (JIT) compiler which greatly increases the speed of execution.