win xp not opening class file.

That code is wrong for all OSes. You don't run the .class file, you run the java executable, passing the class with the main(...) in it:

"cmd /C start java.exe c:/database/Myclass"

Is closer to being correct, if the java executable is in the path, and your Myclass is not in a package. If that fails, you might want to test

"cmd /C start java.exe c:\\database\\Myclass"

And if that fails, you chould play around on the console until you get it to work, then copy the command you used.

stevejluke at 2007-7-7 12:50:04 >

let me give some more information...

i have c:\database

in this folder i have 2 class...Myclass.class and Dbconnection.class

Myclass simply uses the database connection from Dbconnection.class , nothing else.

you see both of the classes are in the same folder(i.e c:\database) and there is no package

statement inside the code .

in command prompt if i do....

c:\database\java Myclass//this works fine

but i want this class to run at runtime, so i did like above and it is not running!!

what i am getting is a irritating windows file chooser is poping up and saying "class not

found...browse or search in web...etc etc"

Now my question is >

Q1 .how can i run that class at runtime ?

N.B

-

here is some brief idea abt classes

Dbconnection.java

--

{

DriverManager.forClass("...database....");

// only for database connection

}

Myclass.java

-

{

.....

Connection con =db.getConnection();

//use this con and show results for ur database related queries.

}

Q2. Can u plz tell those correct syntax how to run class file in this situation ?

i will try all possible solutions tomorrow.

thanx.

intelchip at 2007-7-7 12:50:04 >

> bcoz it is my

> requirement................................

I guess you are not in the business of writing programs for clients, but if you ever do that, you should know that there are times that you have to (politely) tell the client that their requirement is probably stupid, and that there may well be a much simpler way to do that.

DrClap at 2007-7-7 12:50:04 >

> actually this would be just an integrated

> system....NOT client-server at all.

>

> i have created several threads......when all those

> threds will complete their task i will call those 2

> class at run time and to populate the database.

>

> it would be a stand alone program.

Huh?

What does this have to do with anything?

jverd at 2007-7-7 12:50:04 >

But really, why do you want to run this other class in its own VM? There are valid reasons for doing so in some situations, but it adds complexity and overhead, so I would avoid it if I could. Just saying, "because it's my requirement," is not a particularly good answer. You're free not to tell us if you want, but I'd think if somebody was trying to help you improve your program you would answer their questions.

jverd at 2007-7-7 12:50:05 >

> but why why runtime exec() do not work ?

> i am fed up with runtime exce() command...... despite

> giving correct syntax (as provided)it proves nothing

> except hanging.

It does work, it might just not work as you expect it to do. Runtime.exec() has to be used thoughtfully and cautiously, to say the least.

CeciNEstPasUnProgrammeura at 2007-7-20 1:03:52 >