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Assume we have a server A waiting for searching request, when such request comes the server A will multicast it to many other servers Bs each of which has a directory contains many text files and as a response to the request each of Bs servers will search inside these files for the requesting word and return the results to server A which in turn will return the file name and the location of each result to the requesting client
so
notes:
1- Server A must be multithreaded i.e. the thread which multicasts the request differs from the one which receives the results, so there must be an ID for each request.
2- Servers B also are multithreaded.
3- Multicast will be over MulticastSocket with UDP
so help me in coding that in java
????? 
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You need to be rather more specific about what help you expect. It's unlikely that anyone will provide a complete implementation for you.
One of these days I'm going to think of a really clever signature.
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i am developing a email server in java i want to know should i use some dbms to store user emails or simple files
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It depends on the complexity of your system. If you anticipate needing to store lots of data then a proper database system is the obvious answer.
One of these days I'm going to think of a really clever signature.
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a database is fine. I would use derby[^].
It's well documented, integrates completely and is easy to handle.
You can also use a file based system. But that is much more complicated.
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Hi everyone!!
I'd like to ask how to use this library to make project in java which will make a file.pdf. Do you know is it possible to do this?
Thanks in advance : D
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You can get the source from http://www.mupdf.com/[^], so you would just need to write an interface between your Java code and the library. Take a look at the Java Native Interface[^] for details.
One of these days I'm going to think of a really clever signature.
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Hi all.
i want to get the equiment type eg.router,switch,pc,fire
i don't know how to use snmp to get it
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hi guys i have a question, im doing a very simple thread application that increments a value everytime a thread runs, i've got 4 threads running at the same time, but everytime all threads increment the count var, its allways 1 it doesn't change on each thread execution i use synchronized to allow 1 thread increments the var at a time but after all threads die count var outputs same value,
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Please show your code, we cannot guess what may be happening.
One of these days I'm going to think of a really clever signature.
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My guess is that you made the counter an instance variable in the thread, so they all have their own copy. But you haven't posted enough to be sure.
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BobJanova wrote: made the counter an instance variable in the thread
That was my guess too!
5+
Cheers!
"I had the right to remain silent, but I didn't have the ability!"
Ron White, Comedian
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Hello Everyone
I'm trying to convert this java code to C#, could someone please help me on this because I am very new into programming.
Here is the Java code...
import java.awt.Component;
import javax.swing.JOptionPane;
public class ConfirmDeleteDialog {
public static final int YES = JOptionPane.YES_OPTION;
public static final int NO = JOptionPane.NO_OPTION;
public static final int CANCEL = JOptionPane.CANCEL_OPTION;
static final int OK = JOptionPane.OK_OPTION;
static final int CLOSED = JOptionPane.CLOSED_OPTION;
public static int showMessage(Component parent, String message, String title) {
return JOptionPane.showConfirmDialog(parent, message, title, JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
}
}
thanks in advance
lapeci
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That seems to be a custom message box. Hence in C# (if you are using Windows Forms), you could use MessageBox.Show as a replacement for ConfirmDeleteDialog.showMessage. The return value in C# is a DialogResult.
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Hi Bernhard Hiller
Thanks for replaying to my java question. I'm using WPF Window Form (not the Windows Forms). Is there anyway you could help me to convert that java code I'm very new to programming and I don't have a clue how to do it honestly...
Kind Regards
lapeci
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What are you trying to do?
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If you are new to programming then why are you concerned about trying to convert Java to C# when creating a WPF program? Forget Java and spend some time studying how to do things properly in WPF. There are lots of useful samples in the WPF articles section[^].
One of these days I'm going to think of a really clever signature.
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There is no simple equivalent of this in C# as it refers to Java specific components. It would be better if you started with Windows forms[^] in C# and build your program from scratch.
One of these days I'm going to think of a really clever signature.
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It can almost be completely converted to C#:
using System.Windows.Forms;
public class ConfirmDeleteDialog
{
public static readonly int YES = DialogResult.Yes;
public static readonly int NO = DialogResult.No;
public static readonly int CANCEL = DialogResult.Cancel;
internal static readonly int OK = DialogResult.OK;
internal static readonly int CLOSED = JOptionPane.CLOSED_OPTION;
public static int showMessage(Component parent, string message, string title)
{
return MessageBox.Show(parent, message, title, MessageBoxButtons.YesNo, MessageBoxIcon.Question);
}
}
Dave Doknjas
Convert between VB, C#, C++, & Java
www.tangiblesoftwaresolutions.com
Instant C# - VB to C# Converter
Instant VB - C# to VB Converter
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need coding of tower of hanoi game in java(netbeans) .......!!!
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Then please go and search[^] for it. Do not expect other people to do your work for you.
One of these days I'm going to think of a really clever signature.
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Java(netbeans) does not exist.
There is Java SE[^], which you probably meant, and there is a IDE called Netbeans[^](beside of Eclipse[^] ).
The Tower of Hanoi[^] is a common puzzle. You will find an animation on the right side of the wikipedia page - check that one out and find a code to describe it.
EDIT The text is also not bad - pretty good described what's going on.
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