Java

Re: Streaming data through Website

8-Mar-10 22:32

Try here[^] for explanations of what you can do with Java.

txtspeak is the realm of 9 year old children, not developers. Christian Graus

Richard MacCutchan7-Mar-10 22:51

Calling main() in Java???

7-Mar-10 22:51

KenKen Wong wrote:
I read some company can provide streaming data smoothly by Java applet.

Well that would be a good place to ask your question, as they can probably explain what format the data comes in.

txtspeak is the realm of 9 year old children, not developers. Christian Graus

AmbiguousName5-Mar-10 9:12

5-Mar-10 9:12

Hello guys....have you ever thought to call main() in another mathod of the same class...let me show an example

class A {
     public static void main(String [] args) {
         some code here....     
     }

     public void someMethod() {
          here i want to call main()
     }
}

Can we do that?? Basically im trying to simulate ATM Machine on Console...and you know we need to go back to original MENU when we are done with some transaction.

Richard MacCutchan5-Mar-10 9:49

5-Mar-10 9:49

This is the wrong way to do it. Use your main() method to drive the application. If you need some function to execute repeatedly then either call it (if static) direct from main, or create a new object of the class and call its method(s) within some control loop. So in your sample above main() should create a new object of class A and repeatedly call someMethod().

txtspeak is the realm of 9 year old children, not developers. Christian Graus

TorstenH.7-Mar-10 22:54

TorstenH.

7-Mar-10 22:54

I would prefer to go further:

ALLWAYS create another object in your main and work from the object or deeper.

Maybe this can help you too:

recursion ^

greets
Torsten

I never finish anyth...

Richard MacCutchan7-Mar-10 23:56

7-Mar-10 23:56

Thanks, I know that, perhaps you could pass your advice to the OP.

txtspeak is the realm of 9 year old children, not developers. Christian Graus

David Skelly7-Mar-10 22:27

David Skelly

7-Mar-10 22:27

Well, yes, you can call main because at the end of the day it is just a static method, so you can do:

A.main(args);

But as pointed out in the previous answer, why would you want to? If you find yourself doing this it almost certainly means that there is something wrong with your design.

AmbiguousName8-Mar-10 1:36

Command Line Interface in JAVA??

8-Mar-10 1:36

yes...I started my problum from the scratch with better approach and it was working. So no need to call main() in another method of same class.

AmbiguousName4-Mar-10 5:56

Re: Command Line Interface in JAVA??

4-Mar-10 5:56

Hello guys....i have a simple question.
1) How do we use Command Line Interface (CLI) for java programs...i mean we provide arguments using CLI and main() in our java class will use them according to our instructions.
2) Lets suppose that our class has 2 functions Square() and Cube() in it. Now how provide an argument using CLI to one of these functions??

thanx for ur help.....

Richard MacCutchan4-Mar-10 21:24

Re: Command Line Interface in JAVA??

4-Mar-10 21:24

Your Java program should contain a main function defined as:

public static void main (String argv[])

The command line parameters can then be accessed from the argv array.

As to your second question, you pass parameters to other functions in the call to the function, they do not have direct access to the command line parameters.

txtspeak is the realm of 9 year old children, not developers. Christian Graus

Nagy Vilmos4-Mar-10 22:16

Nagy Vilmos

4-Mar-10 22:16

Further to Richards answer, you can take arguments when you START or accept INPUT ounce running.

A long, long time ago all programs worked like this:

Loop until input is "EXIT"
  Prompt
  Get Input
  Process Input

When you process the input you'll need to tokenize what is typed and go from there. Enjoy.

Panic, Chaos, Destruction.
My work here is done.

or "Drink. Get drunk. Fall over." - P O'H

How to zip a text file in gzip format

msubbaraodba25-Feb-10 0:51

msubbaraodba

25-Feb-10 0:51

How to zip a text file in gzip format

Re: How to zip a text file in gzip format

David Skelly25-Feb-10 1:16

David Skelly

25-Feb-10 1:16

If you want to take a text file and zip it using gzip compression you can use java.util.zip.GZIPOutputStream.

There is a good overview here:

http://java.sun.com/developer/technicalArticles/Programming/compression/[^]

Vector3d with floating values.

002comp24-Feb-10 19:28

002comp

24-Feb-10 19:28

Hello Friends
I am in a very critical situation.I am having some float values and the the method I am using to scale is setScale that accepts only vector3d(int,int,int).So how can i create vector3d by using float values.Or is there any other way to create vector3d with flaoting values?

Thanks & Regards
Yogesh

Re: Vector3d with floating values.

Cedric Moonen24-Feb-10 20:32

Cedric Moonen

24-Feb-10 20:32

As usual, your question is so vague that it is almost imposible to give an accurate reply. You should really try to give much more information about the context of your question. Here, we don't have any clue what you might be talking about (unless by guessing)...
From which "library" is this vector3d class coming from ? Why are you using float values if you need to express positions in integers and not in float values ? From where are those float values coming from ? etc...

Cédric Moonen
Software developer

Charting control [v3.0]
OpenGL game tutorial in C++

Re: Vector3d with floating values.(Solved)

002comp24-Feb-10 22:20

002comp

24-Feb-10 22:20

Hello Cedric
I am sorry If my questions are too much vague for you but I try my best to explain from myside.I guess you might be some senior member here so I respect you.Is that reason that some of mine last questions were not answered by anyone?

Actually,I got the answer to my question .but Anyway I will Explain you more in details.vector3d is from java3d Library.And I am getting float values some obj file format.Ans setScale is function of Transform3d.And SetScale are of types, one accepts float and other accepts vector3d.I was getting flaot values so my question was how to create a vector3d from flaot values.
But It solved After more googling.

AnyWay,I appreciate for your valuable time in my thread and even for answering to me . Rose | [Rose]

Thanks Once Again
Regards
Yogesh Sikri

Re: Vector3d with floating values.(Solved)

Nagy Vilmos25-Feb-10 1:34

Nagy Vilmos

25-Feb-10 1:34

yogeshs wrote:
But It solved After more googling

Maybe, just maybe, you should try google BEFORE cp.

Panic, Chaos, Destruction.
My work here is done.

or "Drink. Get drunk. Fall over." - P O'H

Re: Vector3d with floating values.

Arun Reginald Zaheeruddin1-Mar-10 0:11

Arun Reginald Zaheeruddin

1-Mar-10 0:11

It seems like you are trying to use a Java library for 3D programming. If that is the case, then there would most definitely be a class called FastMath in a package called math somewhere. You can use the FastMath.round(...) method within that class to convert the float values to an int without much overhead. This will enable you to then pass those values to the Vector3D class.

Hope this helps. I would have been of further help if I only knew what libraries you were using.

The beginning of knowledge is the fear of God

Java Concurrent Programming guidance

deed.indeed24-Feb-10 12:27

deed.indeed

24-Feb-10 12:27

Hi Everybody,
I am trying to search for a free source Java project or application which is currently sequential and could be converted to multithreaded code.Any suggestion on which application could be converted to concurrent Java code.

Thanks in advance for your help
Deed

Re: Java Concurrent Programming guidance

Nagy Vilmos24-Feb-10 21:57

Nagy Vilmos

24-Feb-10 21:57

Write a program that does something ten times.
Convert said program to do it once on each of ten threads.

Panic, Chaos, Destruction.
My work here is done.

or "Drink. Get drunk. Fall over." - P O'H

Re: Java Concurrent Programming guidance

deed.indeed25-Feb-10 3:46

deed.indeed

25-Feb-10 3:46

Thank you Nagy for the quick response.
I was actually looking for a bigger implementation which I could convert to concurrent code for Masters project.I am right now looking into sourceforge to see if there are any projects there..Any suggestions would be appreciated.

Thanks a lot
Deed

Conversion From String To Integer??

AmbiguousName24-Feb-10 3:34

Re: Conversion From String To Integer??

24-Feb-10 3:34

Hello guys.......im newbie in java. How can we conver a string to integer if it contains more than one numbers like this.......

String str = "12 23 4 35 56 ";

Do you see it has 5 numbers in one string var. How can we do this??

Dino Mulahusic24-Feb-10 3:52

Dino Mulahusic

24-Feb-10 3:52

Do you need five integers or one. You could split your string, or you could remove spaces

Let there arise out of you a band of people inviting to all that is good, enjoining what is right, and forbidding what is wrong: They are the ones to attain felicity.

Āli-'Imrān (The Family of Imran), 104.

Re: Conversion From String To Integer??

AmbiguousName24-Feb-10 3:56