Why Java is Technology?

Hello everyone,
I m very new to java, i m still learning java. At the beginning itself i got a doubt that why everyone calls java as a technology not language. Please let me know why is Java is called as technology not Programming language.

All that is true, but the word "technology" gets overused.
For example, on the page "Update: An Introduction to the Java EE 5 Platform"
http://java.sun.com/developer/technicalArticles/J2EE/intro_ee5/
I searched and found these uses of the word technology. How many uses
actually add meaning to the sentences in which they appear?
The sections on web service support and JavaServer Faces technology have been greatly expanded
Mapping Java technology classes to XML
Mapping Java technology classes to databases
Web applications that use JavaServer Pages (JSP) technology only
Example 1A shows the Java technology code for a hypothetical session bean using EJB 2.1 software.
In fact, this API can also be used outside the Java EE platform in plain Java technology programs
Because entity beans are simple Java technology classes, they can be packaged virtually anywhere in a Java EE application
Now it's as easy as placing the @WebService annotation on a Java technology class.
When starting from Java technology classes, JAXB 2.0 can generate XML Schema documents that are automatically embedded inside a Web Services Description Language (WSDL) document
Example 6 shows how the mapping of Java technology classes and methods to web services
As the standard API used to bind XML documents to Java technology objects,
The number and size of the Java technology classes generated from a given Schema has been greatly reduced.
Example 9 shows a Java technology class annotated for use with JAXB 2.0.
A common issue in developing some Java technology classes first and defining their mapping to Schema later is that some common Java technology types do not have a standard representation in XML Schema.
The JavaServer Faces technology establishes standards for component design and as a result has created a new market for third-party JavaServer Faces technology components.
One or more JSP technology pages
Duke, the Java technology mascot [oy!]

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Why java allow start() method only once for a thread

Hi ,
Why java allows start method only once for thread . suppose
Thread t = new Thread();
t.start();
say at later stage if again we call t.start() IllegalStateException is thrown , even though isAlive method returns false.
Hence the question , why start() method is allowed only once.If you need start a thread , we need to create a new instance.

Really. Why do you think that? Do you have any evidence? It is one of the first things I would think of, personally.Considering that the Thread API doesn't allow you to specify a stack address (only stack size), I think it demonstrates they wanted to remove that capability from their Thread API all together. That missing "capability" makes me believe they want me to believe it's not something I need to worry about when using their API... I think the exact semantics of the Thread class and its methods were driven by how to make it most understandable and usable for their customers. I'm certain this issue was one of many that was given considerable thought during the design and implementation of the JVM and the underlying runtime classes.
Do I have any evidence? No. But if you can point me at some first-hand information on this, I'd love to read it. Most of what I've found is second or third hand accounts. (and I mean that sincerely, not as a smart-ass remark or rebuke of your comments).
On the one hand you seem to think the Java API designers are idiots, on the other hand you think that they should be. I can't make it out.I thought my position was that the Java developers were talented enough to implement platform in whatever way their API called for; hence, the designers made a choice about how they wanted their API to be used by their customers. They decided which capabilities they wanted to include or exclude, and created an API that was consistent with their vision for this technology. While I'm certain technical limitations had an effect on the API design, I certainly don't think the API was dictated by the them.
I think the current design of the Java Thread API was a reflection of their vision to make Threading easier and more accessible to Joe Programmer, not limitations in the implementation. I never said it was wrong or that I could do better... I just said I think they could have done something different if they decided it would have made for a better customer experience. But hey, maybe I'm wrong.

Why java is free?

I don't understand why java technology is free to download, and even more of this, the source code is available.
I think sun can make a lot of money from us. (without giving ideas)

They're trying mic$ofts trick - for years micro$oft offered wondoze on easy to copy disks, with little or no security (even though they could have implemented some kind) knowing that people would pirate it, and spread it around very quickly. Then, when most of the computing world is hooked on using windoze, they upgrade to a flashy secure version that you have to pay loads for. It was a gamble, but certainly paid off. What sun are doing is the only possible tactic for them at the moment, which is to spread java as much as possible to ensure loads of people use it - they are not doing this for fun, or the love of the language, but purley and simply as a business strategy.

Why java is called platform independent

Hello
Why java is called as platform independent?Any body please give a detailed explanation since im a beginner to java technology.
ThankYou
Jk

BigDaddyLoveHandles wrote:
georgemc wrote:
SunFred wrote:
Java is not platform independent since it depends on the Java platform ;)Don't complicate matters!I always thought the phrase should have been "platform agnostic"It's a phrase I've used meself

Why java file name and class name are equal

could u explain why java file name and class name are equal in java

The relevant section of the JLS (?7.6):
When packages are stored in a file system (?7.2.1), the host system may choose to enforce the restriction that it is a compile-time error if a type is not found in a file under a name composed of the type name plus an extension (such as .java or .jav) if either of the following is true:
* The type is referred to by code in other compilation units of the package in which the type is declared.
* The type is declared public (and therefore is potentially accessible from code in other packages).
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When packages are stored in a database (?7.2.2), the host system must not impose such restrictions. In practice, many programmers choose to put each class or interface type in its own compilation unit, whether or not it is public or is referred to by code in other compilation units.

Why Java Web Start doesn't support Pack200 out-of-the-box?

Hello All,
Why Java Web Start doesn't support Pack200 out-of-the-box? I was hoping that Java 6 would make things easier by adding direct support for Pack200 in Java Web Start and JNLP without needing to use servlets, etc.? All my clients are Java 5 or above so I can't push the Pack200 compressed version of the jar to every single one of them and there is no selection process needed. But I can't do it because of the servlet or complex Apache server setup requirement (it would be a headache to get customers' web server admins to set up Apache or whatever web server that way).
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Thank you,
Mete Kural

Hallo,
I didn�t try it, but the webstart FAQ�s read:
Can I use Pack200 compression with the JnlpDownloadServlet?
Yes. The JnlpDownloadServlet distributed in the samples directory of the JDK now supports Pack200. If you deploy yourfile.jar along with yourfile.jar.pack.gz the packed file will be downloaded when the client is running Java Web Start 1.5.0 or later.
http://java.sun.com/javase/6/docs/technotes/guides/javaws/developersguide/faq.html#217
For further information you may want to look at
http://java.sun.com/javase/6/docs/technotes/guides/javaws/developersguide/downloadservletguide.html#pack200
The configuration of the server and the the servlet (as described in the second link) is as easy as it seems.
I got it working on the first try and it was my first experience with websevers at all.
Bye Schippe
Message was edited by:
Schippe

Why java is called java2

why java is called java2 and another thing that i would like to know is why it was renamed to java from its previous name OAK
Thanx
Manish

why java is called java2Not to sure about this one, but I think it was a marketing decision - I guess 'Welcome to the Java 2 platform' sounds better than saying 'Welcome to the JDK 1.2.1 platform' :=)
and another thing that i
would like to know is why it was renamed to java from
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>
Thanx
ManishA brief history of Java:
http://java.sun.com/features/1998/05/birthday.html
http://www.ils.unc.edu/blaze/java/javahist.html

Why java is platform independent ?

what is the meaning of java is platform independent ? is it just because of java code can be run in windows/linux/unix platform ? but then C/C++ also can be run in windows/linux/unix . so why those are not called platform independent ?
why java is called platform independent ?

c/c++ creates object code . similary java creates bytecode . java uses interpreter JVM to execute . similary c/c++ object code also executes in any platform. so where is the real difference ?
the classes do not need to be recompiled for different platforms. what do u mean by this ? ".....classes ( i.e bytecode) dont need recompilation ..." .....ok....but same thing is true for C/C++ object code also !! they also dont need recompilation.
where is the difference ?

Blog post: Embedded Software: Disruptions Ahead - Why Java makes sense

All,
You may be interested in this blog post I did two days ago, which talks about the challenges in embedded software design and why Java makes sense for embedded software engineering:
https://terrencebarr.wordpress.com/2013/08/05/embedded-software-disruptions-ahead/
Best,
Terrence

(bump)

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Hi
For the last 2 years, I have been developing ASP.NET applications. Therefore, I have not followed any new developments within Java industry.
However, now I just want to re-learn Java web technologies.
Therefore, could you kindly inform me whats the best book that can give me a good ground intp Java web / Enterprise development.
Thanks

Thanks for the answer.
When I was doing ASP.NET development, I found these 2 books useful:
http://www.amazon.co.uk/gp/product/1861008031/026-2514404-8364464?v=glance&n=266239
http://www.amazon.co.uk/gp/product/1861008163/026-2514404-8364464?v=glance&n=266239
These books showed how to develop a full working website with asp.net.
I wonder if there are similar books for Java. I am not a beginner with Servlets or JSP. I just want to know how to put together a full working website with the latest Java technologies.
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Kind regards

Why java only can display GIF file not jpeg and BMP ??

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any code to load the display process ??
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you can do jpegs but im not sure about bmps.
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Jim

Why Java is following Unicode & not ASCII standard?

Hi all,
I am new to Java as well as to this forum.
Could you please tell me why Java is not following ASCII format?
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Thanks,
Reni

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p?blico vac?o hagaAlgo(Secuencia s) {
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Sistema.fuera.impresi?nL?nea(i + " = " + s.car?cterEn(i));
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Message was edited by:
bsampieri

Why java is strongly typed language

Can any one help me to answer the following query:
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Hi, All
recently this question was asked in the interview that why java is not 100 % object oriented.....
plz help me regarding this
thanx inn advance...
Ravi

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Why java is giving 'attempting to assign weaker access privileges' error?

Can some one can tell me why java is giving 'attempting to assign weaker access privileges' compile error while compiling Abhishekchild.java ?
The two classes is :
public class Abhishek {
       void asd()
     System.out.println("hello");
          static String a;
          public static void main (String st[])
public class Abhishekchild extends Abhishek {
     private void asd()
     System.out.println("hello");
          static String a;
          public static void main (String st[])
}In my opinion, java compiler is showing the error , as method asd has public visibility in Abhishek. java so
(i)it should be visble to all sub classes of Abhishek.java.
But if we override this function in Abhishekchild.java, and change the visibility to private then it will not be available for child of Abhishekchild.java. But these children are also children of Abhishek.java*, but this violates rule (i).*
So java shows a compilation error.

public class Parent {
     public void asd() {
          System.out.println("Hello");
class Child extends Parent {
     public void asd() {
          System.out.println("Hello from child");
     public static void main(String st[]) {
          Parent parentReference = new Child();
          // The reference 'parentReference' knows about Parent.
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          // But if child could set the method to private,
          // invoking the code below, would hit the object Child,
          // where asd() is not accessible - and everything fails.
          // Note - the compile visibility is checked according to
          // the reference, not the object itself.
          parentReference.asd();
}See my comments in the code.
- Roy

Why Java is Technology?

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