Launch a java program in a specific tty

Hello,
I'm writing a popup program (with Swing) which has to launch popup in every tty where a user is logged in.
I succeeded to get the list of tty where my user is logged in but i don't know how to show my popup (JOptionPane.showMessageDialog(...)) in these.
Thanks for all.
Mik

a virtual terminal in Unix OS

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Execute Java Program in a specific time everyday

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Launch many java programs at runtime

Hi i got one question.
i have a list of java program ina file.
i read this file and get each program names.
i would like to launch all java programs at Runtime from my main Java application.
here is my code so far:
String fileName = expansion + ".txt";
          try
               File file = new File(fileName);
               FileReader     fileReader= new FileReader(file);
               BufferedReader bufferReader = new BufferedReader(fileReader);
               while((program=bufferReader.readLine())!= null)
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                    System.out.println("I launch "+ program);
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while((program==bufferReader.readLine())
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How do I launch my Java program from c/c++? Do I need
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II have a Java program, in which I want to carry out another Java program but in a new process, this new program requiring the definition of constants to the launching of the JVM.
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Use
Runtime.getRuntime().exec( cmd ); //where cmd is command for run java program.
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Besides running an html file with an applet in it. Are there any simple ways to launch a java program every time the computer is turned on.
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Well two ideas (if ur on windows) u could try are -
one, if you had a class file you could simply create a
batch file on windows that says java <class> and then
put that batch file in your startup so that the class
is run at startup or else you could think of modifying
the registry keys on windows to run this class at
startup - whichever works for you.Or you could just jar the program up, adding a Main-Class indicator in the manifest, and then add a shortcut to the jar to the startup folder, as someone else stated. Theres little need to go messing around with DOS batch in modern windows.

Start a java program from an FMB then read and write some variables

Hello,
I am trying to see whether the following setup works:
item A, B, D and Button Z are on a Forms Canvas.
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main thing: a JAVA class that will take some inputs and will output some results and messages.
Prob: I do not want to use swing or any other GUI builder to make a nice GUI for my JAVA class.
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Hi,
I am putting together a Java program which will launch other Java programs.
I was thinking of doing this by calling unix scripts from my java program by getting an instance of the Runtime object and then calling the exec method with the script name.
I am just wondering what is the best practice when doing this? i.e., dealing with timeout issues, and errors in the scripts etc.
I have read this article, which is quite good: http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html?page=1
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The main reason I am using java is because I am most familiar with it and I need to connect to a database as well and do some manipulation of results returned.
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Message was edited by:
LondonJavaDev

Thanks Prometheuzz
Is the main difference between your suggestion and
using the Runtime.getRuntime().exec(cmd) way of doing
things is that in the former both eill run as the
same process (Thread) but in the second scenario the
.getRuntime().exec(cmd) will start a separate new
thread?
Many ThanksCorrect. But you can create a sort of wrapper class for A which implements Runnable and stuff it in it's own thread. If you're dealing with Java code only, I advise you to create threads yourself instead of letting your OS handle them.
Here's a demo:
class Foo {
    public static void main(String[] args) {
        (new Thread(new ARunner())).start();
        B.main(null);
class ARunner implements Runnable {
    public void run() {
        A.main(null);
class A {
    public static void main(String[] args) {
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) { /* ... */ }
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class B {
    public static void main(String[] args) {
        System.out.println("B");
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How to launch a java application from Microsoft SQL Server

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yes...
check this basic example:
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System.out.println("USAGE: java GoodWindowsExec <cmd>");
System.exit(1);
try{
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String[] cmd = new String[3];
if( osName.equals( "Windows NT" ) ){
cmd[0] = "cmd.exe" ;
cmd[1] = "/C" ;
cmd[2] = args[0];
}else if( osName.equals( "Windows 95" ) ){
cmd[0] = "command.com" ;
cmd[1] = "/C" ;
cmd[2] = args[0];
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Running another java prog from a java program

hi,
I would like to add a button to my program in which when pressed, it will launch another java program.
so far i googled and found out how to run from this site:
http://www.devx.com/tips/Tip/13867
but when the 2nd program is launched, the first program become inaccessible until the 2nd program is terminated.
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run the commands in seperate threads.
http://java.sun.com/docs/books/tutorial/essential/threads/

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Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_16-b06-275)
Java HotSpot(TM) Client VM (build 1.5.0_16-132, mixed mode, sharing)
When I try to run something (say, some java applet), I get the message:
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(in smaller print):
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How can my java program launch other applications?

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don't read all that much fantasy.
I've read Eddings' Belgariad and Malloreon, which I really liked at the time but which are not even in the same league as GRRM. The characters are much more one-dimensional, and the plot gets cornier as you go along.
IVE READ BELGARIOD... AGREE THAT IT WAS PRETTY SHALLOW AND I READ IT AFTER LOTR SO IT WAS SUCH A PALE RIPOFF IN COMPARISON
His Elenium and Tamuli series were a little better, but still far from Ice and Fire.
Tolkein, of course, but you've probably heard of him. :-)
Donaldson's Mirror of Her Dreams and A Man Rides through were good.
HAVENT READ THESE, WILL ADD TO MY LIST, THANKS!
Terry Brooks' Shanara series is supposed to be pretty good, and I think Anne McCaffery's Dragonriders of Pern series is considered to be among the classics, but I've never read either one.
READ SOME BROOKS AND FOUND IT SHALLOW LIKE EDDINGS. HAVE READ MCCAFFERY BUT NOT DRAGONRIDERS, AND THE TRILOGY I READ WAS OK BUT THE TONE WAS REALLY GOOFY. A GROUP OF REFUGES ON A NEW PLANET AT A TIME WHEN THE HUMAN RACE IS ENSLAVED BY ALIENS, AND THE BOOK SEEMED TO FOCUS ON HOW FUN BUILDING A CAMP WAS ON THE NEW PLANET AND EVERYONE WAS REALLY PEPPY WHICH FELT ODD GIVEN THE CIRCUMSTANCES OF THE SETTING.
Michael Moorcock's Elric series was very good, also very dark. It was kind of... I don't know... odd. Like you'd want to light up a bong and put on some Floyd while reading it.
HAVENT READ EITHER, ANOTHER FOR THE LIST, THANKS AGAIN!
There's another series of 2 or 3 books that I read a few years ago and really liked, but I can't for the life of me remember the author, the books, any characters names...
P.S. If you want to talk about a nag of a female character, you gotta love (as in hate) Cersei. She gets her on POV in Feast. Good stuff.
YEAH I LIKE CERSEI ACTUALLY. GRRM IS GOOD IN HOW THERE REALLY IS NO MAIN CHARACTER AND EVERYONE IS VERY EXCITING TO READ. RJ ON THE OTHERHAND HAS A DEFINATE CENTRAL CHARACTER TO THE PLOT, AND CHAPTER AFTER CHAPTER OF SOME OF THE FEMALE POV'S GOT AGGRAVATING ESPECIALLY WHEN THEY NAG SO MUCH THE TRUER HEROS OF THE STORY (MY OPINION)... ITS LIKE, SHUT YOUR MOUTH AND LET THEM SAVE THE DAY ALREADY... HEHE... BUT YOU'LL SEE OR HAVE A DIFFERENT OPINION ENTIRELY.
to you i recommend orson scott card... you've probably read ender's game but he has some really good fantasy too... the homecoming series (first book call of earth or memory of earth) was really good, and the alvin maker series is ok plotwise but the characters are incredible... i found a lot of humor and witty dialog in that series and enjoyed it immensely. anyways, thanks again for the list additions, will read feast of crows first, hopefully soon. glad to hear you're liking it... some reviews on amazon weren't stellar.

[Solved] systemd - Auto starting programs under specific tty

Is there any way to start a program on an empty tty?
Currently i run htop on tty11 and a log on tty12 using the default startup scripts with something like this,
htop:2345:respawn:/usr/bin/htop -d=10 > /dev/tty11
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Thanks
Last edited by CaseMonster (2011-11-02 23:34:20)

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[Unit]
Description=htop on tty11
After=dev-tty11.device systemd-user-sessions.service
[Service]
ExecStart=/usr/bin/htop -d=100 > /dev/tty11 < /dev/tty11
Type=oneshot
[Install]
WantedBy=multi-user.target
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systemctl status htop.service
htop.service - htop on tty11
   Loaded: loaded (/lib/systemd/system/htop.service; enabled)
   Active: failed since Wed, 02 Nov 2011 02:57:08 -0500; 1s ago
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[Desktop.browse(jnlpUri)|http://java.sun.com/javase/6/docs/api/java/awt/Desktop.html#browse(java.net.URI)]

Launch a java program in a specific tty

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