I'm having trouble executing a jar file I created using Eclipse.  I
have two projects set up in Eclipse... one with all the main source
code (no Main classes) and another with a main class that utilizes code
from the other project.  I created a jar of the first project and added

Can I simplify this code?
for (Iterator iter = this.children.iterator(); iter.hasNext(); )
{
  String obj = (String)iter.next();

I am writing simple client-server network game using RMI.
Client side has three classes:
- view: simple GUI
- model: engine, which invokes methods on server

Appreciate if anyone can help.
Exported UTF-8 data in  CSV file not working as expected.
i am exporting the utf-8(chineese charater) data from my jsp code into
the CSV file ,it is not  saving the data in the expected behaviour.the

I am a beginner of Java.
  I don't understand what the the "import" statement do for the
program  clearly.
  For example, I just write a program like this:

After interviewing for a number of positions I found that I've a
problem answering questions along the lines of:
  "Design me a scalable trading/pricing system."
The typical aim being to "see how your mind works". Now I don't have a

I am using the Jakarta Commons FileUpload library to upload a file from
an Intranet site to a directory on the UNIX box.  This is working
correctly.
Except, when the file is transferred to the UNIX box, it is named with

I have a big class from somebody:
public class BigClass
{
    public void A()

we are trying to write a java program, in which will enter a key to
keyboard when it gets a specific string from user. In short, we are
trying to find a way in java which will be equvalent to SendKey Method
in Visual Basic. Does anybody can help in this process?

I always thought the method called depended on the type of the object,
so when I define superclass X and its subclass Y:
class X{
   void speak(){

I notice that when we try to write a value back to the property file,
the original comment in the property file will be removed.
Any idea how to keep the comment in the property file and yet updating
the key with the new value?

I'm busy building my build file, when I realised i dont even know what
JVM version to compile to.
what version should i set the "target" to?
1.4?

I have a very long string in which i need to remove new lines (\\r\\n)
etc.Managed to remove new lines but in my output i still get '', which kind
of escape character is this?Is it EOF? how to remove it?Thanks

The following is not my code, but I have to maintain it.
The two classes have been simplified to get to the point,
try-catch blocks, among other things,  are omitted.
MyStuff has a main thread run().  And clients call

I have developed a web App sample (project Proposal Purpose) that
creates various Charts (bar, pie, time series...) using JFreeChart API.
I need to have Japanese text in all the labels of the Chart.
I gave hard coded Japanese text to the method that creates the chart