Why is it possible to use public,protected,private and no (package) in
constructors. Surely the access is defined in the class declaration?
TIA, Simon.

I want to parse a XML document with SAX (using JAXP) and found lot's of
examples of parsing from a file. But... I have the XML in a String variable
and want to parse from there. All the 'parse' methods from the SAXParse
class receive a File, or a InputStream, or a URI... I don't ...

Hi. I have a file that will be typed into something like notepad and I would
like my program to read the file line-by-line, putting each line into an
array. In Visual Basic it was very simple. Is there an equivalent to this in
Java:

From textbook, I was told to implement Thread code, the run() method
need to be overriden. However, I just found below code from one java
programmer exam web site that said the reverse.
Below program compiled & ran without error. But I would like to ask if

When I launch the "J2EE 1.4 Application Server" in Linux, I receive this
error:
Error: Cannot connect to X11 server ':0.0'.
Check that the DISPLAY environment variable is correctly set or try

here's my big problem today. I am creating a tag-lib and I need the top tag to
take care of setting the content type. My tag goes like:
public int doStartTag() throws JspException {
 try {

In my textbook of java programming, it quoted one example about String
objects as below:
String s1 = "spring ";
String s2 = s1 + "summer ";

I would like to know the difference in effect for calling wait() with
or without explicit object reference.
If o.wait() being called, I know that the calling thread is waiting on
object instance o. How about calling wait(), like below example ? :)

I have developed the on-line compiler
futher, it now delivers .zip files
containing the source, class files
and a few HTML docs etcetera.

Does anyone know how to program the minimum and maximum in java

I have been struggling with this for some hours now. I am not 100% sure, but
it appears that Oracle databases/jdbc drivers have a bug with relation to
Blobs - or that Blobs have a serious size limitation in an Oracle database.
I have seen hints to this while searching the www, but I ...

how do u create an exe file of a java program?

Hello, I am designing a tag library. My problem is that
my tags (tomcat 4.1.18 on win2k) seem to retain the status
from one invocation to the next (i.e. variables are
not initialized each time).

I met below test question in one java programmer exam site. I would
like to ask will similar questions appear in the exam ? If so, it will
be troublesome for me as it seems I have to memorize many 'facts'
before sit for this exam.

I've been given an interesting challenge by the IT department.
They have software that uses the SUN JVM in IE on WinXP and won't work
on the MS one and also vice versa.  They've supplied me with the steps
to change this in the "Sun Java Plug-in" Control Panel item and I found