General Java Questions I

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 General Java Questions I

 Q: Is JavaScript the same as Java?

Answer: NO! An Amazingly large number of people, including many web designers,

don t understand the difference between Java and JavaScript. Briefly it can be

summed up as follows: 

Java was developed by Sun Microsystems. Java is a full fledged object oriented

programming language. It can be used to create standalone applications and applet.

Applets are downloaded as separate files to your browser alongside an HTML

document, and provide an infinite variety of added functionality to the Web site you

are visiting. The displayed results of applets can appear to be embedded in an HTML

page (e.g., the scrolling banner message that is so common on Java enhanced

sites), but the Java code arrives as a separate file. 

JavaScript on the other hand was developed by Netscape, is a smaller and simpler

scripting language that does not create applets or standalone applications. In its most

common form today, JavaScript resides inside HTML documents, and can provide

levels of interactivity far beyond typically flat HTML pages    without the need for

server based CGI (Common Gateway Interface) programs. 

Some server software, such as Netscape s SuiteSpot, lets web application

developers write CGI programs in a server side version of JavaScript. Both

client side and server side JavaScript share the same core JavaScript language, but

each side deals with different kinds of objects. Client side objects are predominantly

the components of an HTML web page (e.g., forms, text boxes, buttons). Server side

objects are those that facilitate the handling of requests that come from clients, as

well as connectivity to databases.

 Q: Is Java open source as distributed by Sun, i.e., all the modules including

JVMs?

If not, is anyone else doing an open source implementation?

Answer: Java is not open source project. Though you can get the full source code

under a Sun license.

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