Last-Modified: Fri Oct  8 11:38:42 2004 by David Alex Lamb
Archive-name: computer-lang/java/help/minifaq
Posting-Frequency: every 4 days
Before posting read Jon Skeet's "How to get answers on the comp.lang.java.*

   Scanner keyboard2 =  new Scanner(System.in);
   System.out.println("Enter one character for degree scale (C or
F).");
   String strScale2 = keyboard2.next();

Hi to all!
I am new to Java and have run into something confusing to me.
I know that 'this' can refer to the current object but what does 'this' mean
when used inside a constructor before the object has been completely

I would like to open a frame with in a frame. I do not want to have seperate
class. Rather I would like to have one class with two frames. A little like
visual basic does.

I'm using a JTextArea within a JScrollPane within a JViewPort.  I am
using the JTextArea to mimic a HyperTerminal like terminal emulation
interface.  When I set up the JTextArea I specify the viewable rows and
columns, but since it is inside the JScrollPane it obviously can grow

I have a program that uses an applet to transfer parameters from an Html
page. And transfer them to a constructor. This works very well, I did add
println commands to make sure it functions properly. When I open the applet
which loads a frame. I see the variables even before the ...

I'm no professional programmer, but I suppose I know enough about the
Table API to do most of the things I need. Now I'm trying to figure
out a good way to implement a functionality into my apps to toggle the
visibility of table columns.

java won't run...  get typical java.lang.NoClassDefFoundError.. have no
 idea what happened.. in case my JVM got somehow corrupted uninstalled
and installed again, am now on j2sdk1.4.2_11.. reset path (& JAVA_HOME
for Tomcat), can compile fine..  but can't run classes...  what ...

Hi Friends,
    Can any one help me to know the Enhancements in Java right from
the begnning to latest version of Java.
Thanks and Regards,

             I find something very odd.
When i use the runtime class to run javac in 1.4.2 the console window does
open but when i do the same in 1.5 the console window appears.
             Why is this so. Am i missing something?

i don't know whether this is the proper place to raise the following
question,if u think it's the wrong place to do so ,please delete this
post
i was told that within the static method , i can only use the static

I'm experienced c++ programmer making first steps in java.
Does swing (or awt) has some automatic GUI update engine.
I'm thinking about something similar to ON_COMMAND_COMMAND_UI handlers
(vc++) which get fired every time the application is idle.

I have a string which has this format
    [TagName "Value"]
Is it possible to extract TagName and Value using the Pattern class ? If
yes how ? Something like:

I just started JAVA @ the university Level and as the semester is
coming to a close , the last assignment is proving to be tough for me
and I would greatly appeciate any help solving my problem.  Anyways
this is the assignment,

I've just started using Eclipse 3.2.1 and I've observed that every few
launches of the simples possible applet (see the code below) I get the
following error (it happens only when exitin applet viewer):
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException: