I'm relatively new to Java and have been using Eclipse as my IDE.
Would someone please explain why it discourages the use of the default
package?  (This is the message that appears when creating a new class
without specifying a package.)

I am using JDK 1.5. I tried to use substring() to extract lastname,
firstname, fullname, etc. from the following 'sample' string. For some
reason, the substring() is NOT working right. Please help. Also, what's the
best way to extract fields from a string (or from a file) like ...

I need to generate an InputStream from a String containing some test data.
StringBufferInputStream is deprecated, and the documentation points to
StringReader.
However, after looking through java.io several times, I have not found

I'm trying to load a java properties file and then read from that file.
But each time I try this it returns the value of Null.
Any Ideas?
String osname;

Hi Everybody...
I have one web service ,which interacts with database and creates one
.xml file, now I want to pass this file to client...
can I return this file from web service to client....if yes plz tell me

I have a file with one floating point number per line which I have to
read into an array. I wrote a piece of code using the String Tokenizer
but it tries to tokenize the file name itself instead of the file
contents. I'm VERY new to this so please don't make fun :-P Please help

My question is: is there any way to implement "OnIdle" processing in
Java? All I want is to have a function called whenever the process is in
idle state.
It is commonly used in various C/C++ toolkits, but I couldn't find any

i find this keyword somewhere ..."Java modifiers" ....what is it ?
it seems , it modifies something....really ? what it modifies ?
say i write  int x=5 as a  class  member variable.....is there any
modifier here ?

i am new to java beans.
why is it necessary to use the default counstructor for a bean which
contains no parameters?

Is there a tutorial on how to load a properties file in JSP?
I've spent like 2 days on this and I cant even figure out how load the
stupid file using JSP.

I have following problem with my Java program:
My project folder looks like:
my_folder
+ binary

i want to send a mail form my Java/JSP application in such a format so
that when the recepient receives the mail in Microsoft Outlook, he gets
a popup window.
then after 'Save and Close' option, the details of the mail should get

hello,  everyone  i  want to  learn  java  .what  advice    would  you
like  to   give   me ? do you  think   it   is  suitable for   to  use
<<thinking in java >>  at  this   moment?  thank you very  much

I am having an MVC model for my controls....
That is, if any new control has to be added, I have to add a model, a view
class and a controller class...
Inspite of this is there scope for any design pattern to be used for

I've never been working with JTree:s before and wondering
which type of model I should use with an JTree when I need to
work with it dynamicly (reload the content)?
Right now, I use DefaultMutableTreeNode in the constructor