in java, how do i send commands to the operating system? in other
words, what is the equivalent of the C/C++ system() function?

Can someone assist in showing / telling me what i'm doing wrong here please!
I have put together this small example of what i'm trying to achieve but
can't suss out where i'm going wrong..
(this example uses nested classes though in my real app i'm using external

Sorry about the double post (I was just informed
my request makes more sense on c.l.j.h.
The highschool in the town in which I live has just
asked me to teach a Java class. They also plan

I'm writing an app that is command line for now.  Eventually it will
use Swing pretty heavily.  The application has a Car class.
Cars need a display method.  For the command line, display will
accept an iostream and write the car's attributes to it.  For Swing,

these two little GUIs 'crash' my DOS shell...  i.e., I run and after
clicking 'ok' on pane my DOS shell is 'forzen', can't quit out of app or
do anything else on shell, won't respond to keystrokes..  I have
tried inserting 'break;' after Jpane method, but it won't compile...

I'm trying to get a JAR file working on a VMS and a Windows machine
(Unix shall come later)
So I go and create the JAR file on the OpenVMS machine (JRE 1.4.1-2, VMS
7.3-2), everything works fine. I go and create the JAR file on Windows

I have a Collection defined as:
    protected static Collection dbPrtocolTypes = new ArrayList();
In my code I loop threw a SQL ResultSet adding this column data to the
Collection:

I've written a simple applet that compiles cleanly (apparently), and
will run on Solaris and Red Hat 9 using appletviewer;  and it will run
on a friend's WinXP Pro system.  But when I try to run it on my WIn XP
Pro system, I get these messages in the appletviewer window:

I'm making a "file...open" -dialog that uses a JFileChooser to select
the file to open.
I'm having some problems with my FileFilter implementation though:
Even though I *think* I've set directories to be visible, they aren't

I've learned that to run an external program, I need to make sure I keep
reading from the input stream (I had a problem with this on Windows, once,
where I didn't read the external command's output, and after the  command
sent out 1 line of output, it would freeze).  To do that, ...

I need an HTML editor for my project. Does anybody know any available
one out there written in JAVA?
Also, I need to check the correctness of all the links between html or
image files in a package. I meant checking whether the values of "src"

 I have Swing-RMI based application. I have a requirement to
access the data thro' RMI server using web service request. We
have some customers that they wanted to connect to our RMI application
to get the data back. Basically create a web service which connects to

Working in bluej, after compiling program says "illegal start of
expression" in "public String getAuthor(), but I suposse everything's
correct, isn't it? Tried to save and close and open the programme
again.

I'm beginner in programming - I learn Java (work with BlueJ). My task
is to make a basic calculator, but I have a problem
even with basic mathematical operations. Could somebody help me to
fill +,-,*,/ to make it work? Joey

Hey everyone
I'm not good with java so i was wondering if anyone could help me build
this basic java program in textpad. I need to have a program that takes a
string (upper case only) as a parameter and returns a histogram of the