How to initialized main method in a deployed application
Hello,
I am trying to deploy a simple java application to OC4J, I created a jar file as my deployment profile and then I created EAR file and finally delpoyed succesfully, but I'm wondering how can I start my main method in deployed application, note that my application requires some input arguments as well. Any ideas how can I do that ?
Regards,
Hussam Galal
I might be missing the point of this post, but you can't 'start your main method' in any type of deployed application.
You must expose your methods via some mechanism. You could call your method via a JSP, wrap in an EJB and create a client to call it remotely etc.
What is in your JAR file? Just POJOs? If so you will have to wrap them in EJBs so they can be called, that or deploy a web application with some servlets or JSPs so they are accessible via some URL.
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Here's the code:
package simu;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
public class Simulaattori extends Applet {
boolean isStandalone = false;
Button SIMtilaButton = new Button();
Button VNStilaButton = new Button();
Button kaasuButton = new Button();
Button jarruButton = new Button();
Label asetuslabel = new Label();
TextField asetusarvoTextField = new TextField();
Button asetusplusButton = new Button();
Button asetusmiinusButton = new Button();
Label nollaatrippilabel = new Label();
Label trippilabel = new Label();
Label matkalabel = new Label();
Button ClrButton = new Button();
TextField trippimatkaTextField = new TextField();
TextField kokomatkaTextField = new TextField();
Label nopeuslabel = new Label();
TextField nopeusTextField = new TextField();
Label KaasuJaJarrulabel = new Label();
TextField kaasujajarruTextField = new TextField();
/**Get a parameter value*/
public String getParameter(String key, String def) {
return isStandalone ? System.getProperty(key, def) :
(getParameter(key) != null ? getParameter(key) : def);
//Muuttujat
boolean isSIM_ON;
boolean isVNS_ON;
boolean OnkoPoljettu;
double asetusarvo;
double voima;
/**Construct the applet*/
public Simulaattori() {
isSIM_ON = false;
isVNS_ON = false;
OnkoPoljettu = false;
voima = 0;
asetusarvo = 0;
DisableButtons_SimOff();
/**Initialize the applet*/
public void init() {
try {
jbInit();
catch(Exception e) {
e.printStackTrace();
/**Component initialization*/
private void jbInit() throws Exception {
SIMtilaButton.setLabel("Sim ON/OFF");
SIMtilaButton.setBounds(new Rectangle(12, 8, 112, 27));
SIMtilaButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
SIMtilaButton_actionPerformed(e);
this.setBackground(new Color(20, 197, 230));
this.setLayout(null);
VNStilaButton.setLabel("VNS ON/OFF");
VNStilaButton.setBounds(new Rectangle(12, 46, 112, 29));
VNStilaButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
VNStilaButton_actionPerformed(e);
asetuslabel.setFont(new java.awt.Font("Serif", 1, 18));
asetuslabel.setText("Asetusarvo:");
asetuslabel.setBounds(new Rectangle(20, 99, 93, 17));
asetusarvoTextField.setBounds(new Rectangle(19, 123, 94, 26));
asetusplusButton.setLabel("+");
asetusplusButton.setBounds(new Rectangle(19, 164, 44, 27));
asetusplusButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
asetusplusButton_actionPerformed(e);
asetusmiinusButton.setLabel("-");
asetusmiinusButton.setBounds(new Rectangle(71, 164, 42, 27));
asetusmiinusButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
asetusmiinusButton_actionPerformed(e);
nollaatrippilabel.setFont(new java.awt.Font("Serif", 1, 18));
nollaatrippilabel.setText("Nollaa trippi:");
nollaatrippilabel.setBounds(new Rectangle(170, 10, 112, 22));
trippilabel.setBounds(new Rectangle(170, 43, 112, 22));
trippilabel.setText("Trippimittari");
trippilabel.setFont(new java.awt.Font("Serif", 1, 18));
matkalabel.setBounds(new Rectangle(170, 113, 112, 22));
matkalabel.setText("Matkamittari");
matkalabel.setFont(new java.awt.Font("Serif", 1, 18));
ClrButton.setCursor(null);
ClrButton.setFont(new java.awt.Font("Dialog", 0, 8));
ClrButton.setLabel("CLR");
ClrButton.setBounds(new Rectangle(282, 7, 52, 28));
ClrButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
ClrButton_actionPerformed(e);
trippimatkaTextField.setBounds(new Rectangle(170, 71, 102, 26));
kokomatkaTextField.setBounds(new Rectangle(170, 140, 102, 26));
nopeuslabel.setFont(new java.awt.Font("Serif", 1, 18));
nopeuslabel.setText("Nopeusmittari");
nopeuslabel.setBounds(new Rectangle(170, 188, 112, 22));
nopeusTextField.setBounds(new Rectangle(170, 220, 102, 26));
KaasuJaJarrulabel.setFont(new java.awt.Font("Serif", 1, 20));
KaasuJaJarrulabel.setText("Kaasu & Jarru");
KaasuJaJarrulabel.setBounds(new Rectangle(95, 285, 136, 26));
kaasujajarruTextField.setBounds(new Rectangle(97, 317, 125, 27));
kaasuButton.setLabel("Kaasu");
kaasuButton.setBounds(new Rectangle(256, 282, 105, 29));
kaasuButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
kaasuButton_actionPerformed(e);
jarruButton.setBounds(new Rectangle(255, 317, 105, 29));
jarruButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jarruButton_actionPerformed(e);
jarruButton.setLabel("Jarru");
this.add(SIMtilaButton, null);
this.add(VNStilaButton, null);
this.add(asetuslabel, null);
this.add(asetusarvoTextField, null);
this.add(asetusplusButton, null);
this.add(asetusmiinusButton, null);
this.add(nollaatrippilabel, null);
this.add(trippilabel, null);
this.add(ClrButton, null);
this.add(trippimatkaTextField, null);
this.add(matkalabel, null);
this.add(kokomatkaTextField, null);
this.add(nopeuslabel, null);
this.add(nopeusTextField, null);
this.add(KaasuJaJarrulabel, null);
this.add(kaasujajarruTextField, null);
this.add(kaasuButton, null);
this.add(jarruButton, null);
/**Get Applet information*/
public String getAppletInfo() {
return "Applet Information";
/**Get parameter info*/
public String[][] getParameterInfo() {
return null;
void SIMtilaButton_actionPerformed(ActionEvent e) {
if (isSIM_ON) {
DisableButtons_SimOff();
isSIM_ON = false;
else {
EnableButtons_SimOn();
isSIM_ON = true;
void VNStilaButton_actionPerformed(ActionEvent e) {
if (isVNS_ON) {
isVNS_ON = false;
DisableButtons_VNSOff();
else {
isVNS_ON = true;
EnableButtons_VNSOn();
//asetusarvoksi nykyinen nopeus
asetusarvo = Nopeusmittari.AnnaNopeus();
void ClrButton_actionPerformed(ActionEvent e) {
//tripin nollaus
Trippimittari.NollaaMittari();
void asetusplusButton_actionPerformed(ActionEvent e) {
asetusarvo = asetusarvo + 1;
void asetusmiinusButton_actionPerformed(ActionEvent e) {
asetusarvo = asetusarvo - 1;
void kaasuButton_actionPerformed(ActionEvent e) {
if (voima >= 0 && voima <= 90) {
voima = voima + 10;
else if (voima < 0) {
voima = 0;
//kaasun painaminen lopetaa vakionopeuden s��d�n
isVNS_ON = false;
void jarruButton_actionPerformed(ActionEvent e) {
if (voima >= -90 && voima <= 0) {
voima = voima - 10;
//kaasujajarruTextField.setText(Double.toString(voima));
else if (voima > 0) {
voima = 0;
//kaasujajarruTextField.setText(Double.toString(voima));
//jarrun painaminen lopettaa vakionopeuden s��d�n
isVNS_ON = false;
void DisableButtons_SimOff() {
SIMtilaButton.setEnabled(true);
VNStilaButton.setEnabled(false);
ClrButton.setEnabled(false);
asetusplusButton.setEnabled(false);
asetusmiinusButton.setEnabled(false);
kaasuButton.setEnabled(false);
jarruButton.setEnabled(false);
void EnableButtons_SimOn() {
SIMtilaButton.setEnabled(true);
VNStilaButton.setEnabled(true);
ClrButton.setEnabled(true);
asetusplusButton.setEnabled(false);
asetusmiinusButton.setEnabled(false);
jarruButton.setEnabled(true);
kaasuButton.setEnabled(true);
void DisableButtons_VNSOff() {
asetusmiinusButton.setEnabled(false);
asetusplusButton.setEnabled(false);
void EnableButtons_VNSOn() {
asetusmiinusButton.setEnabled(true);
asetusplusButton.setEnabled(true);
public double AnnaVoima() {
return voima;
public boolean CheckPolkimet() {
return OnkoPoljettu;
public double AnnaAsetusarvo() {
return asetusarvo;
public boolean OnkoSIM_ON() {
return isSIM_ON;
public boolean OnkoVNS_ON() {
return isVNS_ON;
public void Alkutilaan() {
isSIM_ON = false;
isVNS_ON = false;
OnkoPoljettu = false;
voima = 0;
asetusarvo = 0;
DisableButtons_SimOff();
public void NaytaNopeus(double nopeus) {
nopeusTextField.setText(Double.toString(nopeus));
public void NaytaKokoMatka(double matka) {
kokomatkaTextField.setText(Double.toString(matka));
public void NaytaTrippiMatka(double trippimatka) {
trippimatkaTextField.setText(Double.toString(trippimatka));
public void NaytaVoima() {
kaasujajarruTextField.setText(Double.toString(voima));
//P��OHJELMA
public static void main(String[] args) {
//Luodaan oliot
Simulaattori simulaattori = new Simulaattori();
Saadin saadin = new Saadin();
Matkamittari matkamittari = new Matkamittari();
Trippimittari trippimittari = new Trippimittari();
Nopeusmittari nopeusmittari = new Nopeusmittari();
Malli malli = new Malli();
simulaattori.asetusmiinusButton.setEnabled(true);
while (true) {
simulaattori.Alkutilaan();
while (simulaattori.OnkoSIM_ON()) {
long alkuaika = System.currentTimeMillis();
simulaattori.trippimatkaTextField.setText("TESTI");
if (simulaattori.OnkoVNS_ON()) {
//v�litet��n voima mallille, s��din laskee voiman
malli.laske_nopeus( Saadin.LaskeVoima() );
nopeusmittari.LaskeNopeus();
matkamittari.LaskeMatka();
trippimittari.LaskeMatka();
simulaattori.NaytaNopeus(nopeusmittari.AnnaNopeus());
simulaattori.NaytaKokoMatka(matkamittari.AnnaMatka());
simulaattori.NaytaTrippiMatka(trippimittari.AnnaMatka());
simulaattori.NaytaVoima();
}else {
//v�litet��n voima mallille
malli.laske_nopeus((int) (simulaattori.AnnaVoima()) );
nopeusmittari.LaskeNopeus();
matkamittari.LaskeMatka();
trippimittari.LaskeMatka();
simulaattori.NaytaNopeus(nopeusmittari.AnnaNopeus());
simulaattori.NaytaKokoMatka(matkamittari.AnnaMatka());
simulaattori.NaytaTrippiMatka(trippimittari.AnnaMatka());
long loppuaika = System.currentTimeMillis();
long suoritusaika = loppuaika - alkuaika;
while (suoritusaika < 100) {
loppuaika = System.currentTimeMillis();
suoritusaika = loppuaika - alkuaika;
} //end while (simulaattori.OnkoSIM_ON())
} //end while(1)
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Error 1 Method must have a return type C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\switch_Statement\Program.cs
12 13
switch_Statement
Error 2
Type expected C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\switch_Statement\Program.cs
12 24
switch_Statement
Error 3
Method must have a return type C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\ifelse_Statement\Program.cs
12 9
ifelse_Statement
Error 4
Type expected C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\ifelse_Statement\Program.cs
12 20
ifelse_Statement
Error 5
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C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\ifelse_Statement\Program.cs
16 9
ifelse_Statement
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Invalid token '10' in class, struct, or interface member declaration
C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\ifelse_Statement\Program.cs
16 16
ifelse_Statement
Error 7
Type expected C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\ifelse_Statement\Program.cs
16 16
ifelse_Statement
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C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\ifelse_Statement\Program.cs
18 35
ifelse_Statement
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C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\ifelse_Statement\Program.cs
20 10
ifelse_Statement
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C:\Users\PVS\documents\visual studio 2013\Projects\Lesson01\ifelse_Statement\Program.cs
30 1
ifelse_Statement
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c:\users\pvs\documents\visual studio 2013\projects\lesson01\ifelse_statement\program.cs
16 12
ifelse_Statement
Error 12
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18 26
ifelse_Statementstatic void Main(string[] args){
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hI,
the code bellow is part of a simple EE 6 example from Yuri Vasilievs book Beginning Database-Driven...
Can somone tell me when the variable customerSession bellow will be initiated in the CustomerSessionClient class bellow.
When I run theCustomerSessionClient (main methode) in my netbeans environment the customerSession is allways null?
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package ejbjpa.client;
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* @author xxx
@Remote
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import ejbjpa.ejb.CustomerSession;
import javax.ejb.EJB;
* @author xxx
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Message was edited by:
Felice
Message was edited by:
FeliceThank you very much,
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how to print a string with out using main method??
if we can tell me with example?
thanks in adavance
rajaHi,
actually there's none. The UITableView class needs to "know" the tableView's height so either it can calc <number of rows> times <row height> or it has to sum the height of each single row.
If the row which needs to be of different size always is the first or the last row you can user a tableHeader or tableFoot view.
Regards
Dirk -
How do you call a java class from the main method in another class?
Hi all,
How do you call a java class from the main() method in another class? Assuming the two class are in the same package.
Thanks
SI
Edited by: okun on May 16, 2010 8:40 PM
Edited by: okun on May 16, 2010 8:41 PM
Edited by: okun on May 16, 2010 8:47 PMgeorgemc wrote:
To answer your impending question, either the method you're calling has to be static, or you need an instance of that other class to invoke it against. Prefer the latterAnd to your impending question after that: no, don't use the Singleton pattern.
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