Need help with....JAVA

Thu Dec 25, 2003 4:58 pm by Kendo THM

Yeh, I got a guide to learning Java

for x-mas.

and as I am so hopeless, I got stuck in the first chapter, AND, I just need one command for now... If I need more help, I'll say it here

Anyway, this is the sitch:

public class App1_1
{
(tab) public static void main(String args[)
(tab) {
(tab)(tab) System.out,printIn("Hello, world!"

;
(tab) }
}

(tab) = that big space when you hit the tab button. I can't use it here...you all know why...

It all works, and a little box(command prompt style) comes up saying: Hello World

...and the box then just dissappears immediatly.

What I ask, is, how can I change it so that the box doesn't just close immediatly??

EDIT: No emoticons in the subject please.

Thats all I need at the moment...

Edited by - Stinger on 28-12-2003 07:30:25

Thu Dec 25, 2003 9:39 pm by Griffon_26

e=mc2

Fri Dec 26, 2003 1:03 am by mustang

Arcon would be your best bet for JAVA questions around here. I did a beginners course on it about a year ago and I really sucked at it, so I can successfuly say I've forgotten most of what I learnt. But I would say your code wouldn't be the problem in this instance, I think there is a setting in the compiler from memory. What compiler are you using anyway?

Edited by - Mustang on 26-12-2003 01:05:03

Sat Dec 27, 2003 10:10 am by sycho warrior

What type of output do u use? A console? how does the beginning of your program look? Which type of java do u use? Java or Ready to program?
If you still need help, mail me @ [email protected] then i'll try to help

The more I learn , the more I get to know, the more I get to know, the more I forget, so why should I learn?

Sat Dec 27, 2003 11:08 am by Kendo THM

Uhm, well, my book is german, which will encounter problems. The book is called "Java Jetzt", and its sort of a beginners book to Java.

The program it uses is, I think, called Microsoft Visual J++.

The problem isn't that it doesn't work, but that the box comes up, and closes straight away. The program that runs the...program :p is called jview(.exe)

Thats about all I can say. I kinda just need a pause command, so that it won't close straight away.

P.S: Java Jetzt in english: Java now

Sat Dec 27, 2003 12:20 pm by mustang

Ahh, does it come up like an MSDOS prompt? If so right click on the .exe , go to properties and then click the program tab and uncheck the box that says "close on exit"

Edited by - Mustang on 27-12-2003 12:21:19

Sat Dec 27, 2003 12:47 pm by Tawakalna

I didn't know that. I'm useless with Java and all that web stuff

Sat Dec 27, 2003 12:53 pm by Kendo THM

Yeh, its in Command Prompt, but...what program tab?

Edit: Do you mean the jview.exe or what?

Edited by - Kendo THM on 27-12-2003 12:54:19

Sat Dec 27, 2003 4:24 pm by Arcon

ok monkey, heres what you do:
(edit)
sod it:

^Thats the code really. but change "bleh" to whatever your file is called (i.e. if it was "bleh" it would be in the file "bleh.java"

secondly, i dont know if it was in your original code or whether it was in your conversion for the forum, but its "println" as in "PRINTLN" not "PRINTIN" the L can look like an I.

Thirdly, i use a program called JCreator, its really easy to use and is laid out like Visual C++ although the only bugger is it doesnt have the sysntax popups so you can quickly code it. Its worth a look though if your getting frustrated with VJ++. In JCreator, that above code of mine works perfectly.

"Something wicked this way comes"

Edited by - Arcon on 27-12-2003 16:30:53

Sat Dec 27, 2003 5:49 pm by Kendo THM

Thanks

Ok, well, I'm just gonna ask a few questions where I'm not realy sure about..:

What do the following mean?:

bollean
byte
char
int
long
float
double

Well, not what they mean, but what they do...At the moment I'm abit confused, thats all...

thanks.

P.S: I'm no monkey

Sun Dec 28, 2003 12:05 am by mustang

Yeh, its in Command Prompt, but...what program tab?

Edit: Do you mean the jview.exe or what?

The program tab should be there if you are running XP. If not, look for an a check box that says "close on exit" and uncheck it. I am talking about the file you saved your java program as. If that doesn't have a .exe extention, then forget everything I said.

Sun Dec 28, 2003 12:58 am by Tawakalna

kendo, u mean "boolean," do you not

are we still on Java then? 'cos half that stuff you listed is nowt to do with Java, it's o/s and hardware stuff. I'm really confused now!

Sun Dec 28, 2003 10:38 am by Kendo THM

@ Mustang - the file extension is .java, so....

@ Tawa - yeh, sorry, slight misspelling

Sun Dec 28, 2003 5:49 pm by Arcon

@Kendo: theses are all variable / data types:

boolean - these can be either 'true' or 'false'
byte - *shrug*
char - a single character (i.e. 'a' or '2')
int - an integer (whole number) (i.e. 43, 653)
long - a LONG integer (i.e. 5345265634)
float - a floating point number (i.e. 33.33333)
double - something like a float but i'm not sure TBH

Kendo, these should all be explained in your book. its essential information mate. I couldnt imagine a book telling you Java without explaining the basics of variables and datatypes.

"Something wicked this way comes"

Sat Jan 03, 2004 12:39 am by sycho warrior

A byte is a short integer between -128 and 128 i think
double is with deciml places, its usually easier to use double than float

The more I learn , the more I get to know, the more I get to know, the more I forget, so why should I learn?

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