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You need to add action listeners to your buttons which get fired when the button is clicked. See here[^] for a sample. txtspeak is the realm of 9 year old children, not developers. Christian Graus
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I have right clicked on the buttons and added action listeners but I am not sure what coding to enter to establish new jpanels or new jframes. Sun's tutorials do not explain this matter either
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I think you may need the Internal Frame[^] class.
I would also suggest you try working through some of the swing tutorials, just to get familiar and comfortable with the components and how they fit together. If you are just using drag and drop through NetBeans it is not always clear how the various pieces interact.txtspeak is the realm of 9 year old children, not developers. Christian Graus
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To show a frame you call setVisible(true).
The Sun tutorial is here:
http://java.sun.com/docs/books/tutorial/uiswing/TOC.html[^]
The tutorial is pretty comprehensive. Swing is a big toolkit, and it's not really something you can learn in an afternoon, so be prepared to invest some time learning it if you want to get the best from it.
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The first thing I would do if I was you is to buy a good book on Swing programming. Sun do a very good one. If you can't afford that, there are some good tutorials on the Sun site that will lead you through the basics.
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hello guys....This is exactly the same code im copying from a book but yet it producing an exception saying "Can not format given object as Date"...while the author has shown the input in book...
import java.text.*;
import java.util.*;
class Date {
public static void main(String [] args) {
Date date = new Date();
SimpleDateFormat sdf;
sdf = new SimpleDateFormat("hh:mm:ss");
sdf = new SimpleDateFormat("dd MMM yyyy hh:mm:ss");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("E MMM dd yyyy");
System.out.println(sdf.format(date));
}
}
what is wrong with this code
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I would say : you shouldn't name the class as Date, since it can be confusing with the Date valuetype.
...
class DateTest {
...
}
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thanx....
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hello,m new in java.I m developin a login applet(client) which will send username and password to server,which will ultimately connect to database and authenticate the username and password.
how do i pass object b/w client and server???
i know the class have to implement serializable interface.
and i know the methods objectoutputstream and objectinputstream but i dont know how to actually implement them..
please help.
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Kunalpuranik wrote: i know the class have to implement serializable interface.
This interface is for saving and restoring an object's state, it has nothing to do with client/server communication. You will need to use some socket implementation to achieve your objective.txtspeak is the realm of 9 year old children, not developers. Christian Graus
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hey,i know the socket programming.but the socket programming is just to establish a link between client and the server.
i also know how to transfer strings between client and server as i have developed a chat application.
but what iam asking is how to transfer the object of my client class to my server end..
and the reason ive not written the code is because i dont know how to implement and thats why iam askin.
and if u want i can post my simple client server chat application code here.
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Kunalpuranik wrote: socket programming is just to establish a link between client and the server.
Well it's a bit more than that.
Kunalpuranik wrote: how to transfer the object of my client class to my server end.
The same way that you would transfer anything, convert it to a byte stream and squirt it down the socket.txtspeak is the realm of 9 year old children, not developers. Christian Graus
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Richard MacCutchan wrote: This interface is for saving and restoring an object's state, it has nothing to do with client/server communication
Well, strictly speaking he's right. If you want to send an object through a socket, the object must be serializable. If it isn't serializable then you have to convert its state to a serializable form (e.g. by invoking defaultWriteObject from ObjectOutputStream) before you can send it through the socket.
Think about it: the very act of sending an object from the client to the server involves saving its state at one end of the communication, and restoring it at the other.
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True, the shouting sent me veering off course. txtspeak is the realm of 9 year old children, not developers. Christian Graus
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Hey Guys,I am new bie to java3d.I want to know that am I on right message Board.Or this one is only for core java.
So,only after I can proceed with my questions.
Java3DArtist
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You are on the right board, but I do not know whether you will find many answers here. Java3D is a subject that not many people seem to be familiar with. txtspeak is the realm of 9 year old children, not developers. Christian Graus
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I amworking n importing a wsdl and displaying the methods in wsdl2.0 file in jave any ideas on this will be appreciated
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Hi I'm tring to track my packages with my program..
I should fill a textbox called barkod with a value .. then click the button in the
website : PTT Genel Müdürlü?ü-General Directorate of Turkish Post
Trace Registered Postal Items
_____________________
|___BARCODE NUMBER___| BUTTON
but I couldn't do it, the code still returns the source codes of the main page..
what should I do ??? =((((
int ch;
URL url;
url = new URL("http://www.ptt.gov.tr");
String page;
HTMLDocument myDoc = null ;
myDoc=(HTMLDocument)url.openConnection();
HTMLInputElement barkod = (HTMLInputElement)myDoc.getElementsByName("barkod");
barkod.setValue("RJ464842336GB");
HTMLInputElement buton = (HTMLInputElement)myDoc.getElementsByName("Sb22");
buton.click();
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Hey,
Anyone have an example of a J2ME 2d side scroller game code i can look at?
Thanks
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hello guys.....have you been able to find a method which could clear the screen in java?? Can we try, putting in a loop, something like
gotoxy(i,j);
where i,j are rows and columns respectively and then printing a balnk??modified on Saturday, March 13, 2010 4:37 AM
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Do you mean in a console or swing application? If it's swing then you have total control of what is drawn to the screen. In a console app there is no concept of a window. txtspeak is the realm of 9 year old children, not developers. Christian Graus
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yes...i wanted it on a console....im trying hard to find this out but still, u know. I have read somewhere that we can use System.exec("cls"); but that too is not working.
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I am not sure this is possible from Java. "cls" is an internal 'MSDOS' command so can only be run from an invocation of CMD.EXE. However I do not think that this will do what you want. Take a look at Runtime.getruntime().exec() for further information.txtspeak is the realm of 9 year old children, not developers. Christian Graus
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hello Friends
I am using java3d Library.In regarding to that I am creating a scene with Multitexture.For that I am using Combine Mode,SetCombineRGBSource function.But I am not getting the full description of SetCombineRGBSource function,specially its parameter.
Is anyone aware of all these?
Thanks & Regards
Yogesh Sikri
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Hey all,
I'm having trouble getting an applet to use the printer. Every time, it pops a message stating "The applet has requested access to the printer. Do you want to allow this action?" I check yes to an option underneath stating to always allow access, however, it seems that there is a lack of communication going on here, because the same message pops up next time. I've read that this can be fixed by adding this line to the java policy security file (java.policy):
permission java.lang.RuntimePermission "queuePrintJob";
But that solution doesn't work well for me, because I can't have everyone that uses my applet change their security files to avoid the annoying popup. The applet is signed, however, it's print method is being called directly from javascript and so I think there may be a bit of security tightening going on there causing the problem. Is there a checkbox or a setting somewhere I can have my users set, or is there something I can do on my end?
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