GetMessageExample.java
I have a problem with the exercise GetMessageExample.java, that u can find here:
http://developer.java.sun.com/developer/onlineTraining/JavaMail/exercises/MailGetting/index.html
I can compile the exercise but when I run the exercise happend this:
C:\aa>java GetMessageExample sn00446it.it.xxxxx.com DOMAIN\USER PASSWORD
Exception in thread "main" java.lang.NoClassDefFoundError: javax/mail/Service
but i can run a simple exercise like HelloWord, so i think that is not a classpath problem.
I have NT on my pc, and exchange how mail-server.
*(USER,PASSWORD,DOMAIN)--the value that i use how parameter are the same value thAT I use for logon when i start my pc .
*(POP.Server)--I find my POP.Server value from outlook: i find my name from the global-addres-list, and
just right click on my names with the mause, if u select propretis appear a mask with Server: SNXXXXCH
If i from MS-DOS ping this server the result is this:
C:\aa>ping snXXXXit
Pinging snXXXXch.ch.pippo.com with 32 bytes of data:
i shoud use snXXXXit or snXXXXch.ch.pippo.com?
please help me.
thanks
I have download:
jdk1.3.1_01
jaf1_0_1
javamail-1_2
and set classpath:
C:\jdk1.3.1_01\lib\tools.jar;C:\javamail-1_2\javamail-1.2\mail.jar;C:\jaf1_0_1\jaf-1.0.1\activation.jar;C:\javamail-1_2\javamail-1.2\pop3.jar
For now i'm not bilding an application or using a particular tool, i whole like just run the example.
bye
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I have use the simple program to send email using smtp server from my company. It runs fine. However, when i try to run the program of reading the message from my INBOX, i have receive error of the following..I am sure that my company's smtp server works since i have no trouble sending email to my account.
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Source Code
=======================================================================
import java.io.*;
import java.util.Properties;
import javax.mail.*;
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public static void main (String args[]) throws Exception {
Store store = null;
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try
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String password = args[2];
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========================================================================
C:\>java GetMessageExample [my company SMTP server] [my user name][my password]
DEBUG: getProvider() returning javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.
POP3Store,Sun Microsystems, Inc]
POP3: connecting to host "my company SMTP server", port 110
javax.mail.MessagingException: Connect failed;
nested exception is:
java.net.ConnectException: Connection refused: connect
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:106)
at javax.mail.Service.connect(Service.java:234)
at javax.mail.Service.connect(Service.java:135)
at GetMessageExample.main(GetMessageExample.java:39)Dude SMTP is a TRANSFER potocol!! you need a store to collect your messages from. You need to enter your company's pop or imap server not smtp server.
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Hi,
I'm getting the following error while I'm trying to read mails from server where POP3 is enabled. Could anyone please let me know how I can fix it?
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public static void main (String args[]) throws Exception {
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The error occurs here ^^^^^
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at GetMessageExample.main(GetMessageExample.java:39)This looks like the same question you posted in this thread:
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at com.tcs.re.component.RECollectCont.run(RECollectCont.java:304)Ok, let's see. Write the following class:
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DIR_RSYN /usr/sap/X32/DVEBMGS32/exe
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Starting deployment prerequisites: error in BI-Java installation sapinst
Hi all,
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If Statement in java.awt paint
import java.applet.Applet; //bring in the applet class
import java.awt.*; //bring in the graphics class
import java.awt.event.*; //bring in the event class
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} // end of Bmi classI have written the above code to calculate someones BMI (Body Mass Index). Basically as you can see it recieves a weight and height from the user and calculates the rest. But whilst that good I would like to know how I can make it tell the user something to the effect of "Your overweight" or "Your underweight". The if statement runs like this:
if (wt > max)This forum doesn't quite handle <> properly. The greater and less than symbols. So above you will see > this is the html character code for a greater than symbol so please read it as such.
And then if wt is greater than max then it will say "Your overweight".
But I can't figure out how to include it in the above program. Becuase it won't run in paint, atleast it won't the way I have done it previously. So can you think of any other ways?
Help much appreciated,
SimonThanks very much that works well.
Simon
My code now looks like this: import java.applet.Applet; //bring in the applet class
import java.awt.*; //bring in the graphics class
import java.awt.event.*; //bring in the event class
import java.text.DecimalFormat; //bring in the decimal format class
import java.lang.Float; //bring in the float class
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Label weight, height; //define Label variable
TextField weighttext, heighttext; //define TextField variables
Button calculate; //define button variables
float index, wt, ht, max, min; //define float variables
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weight = new Label("Please enter your weight in Kg. (2 decimal places): "); //define content of Label weight
weighttext = new TextField(6); //define size of TextField
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add(height); //add Label height to the GUI
add(heighttext); //add TextField heighttext to the GUI
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wt = 0; //reset wt to 0
index = 0; //reset index to 0
ht = 0; //reset ht to 0
max = 0; //reset max to 0
min = 0; //reset min to 0
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wt = Float.parseFloat(weighttext.getText()); //convert weighttext from String to Float
ht = Float.parseFloat(heighttext.getText()); //covert heighttext from String to Float
repaint(); //refresh paint area
public float indexer() //begin indexer method
float ind; //delare local variable ind
ind = wt/(ht*ht); //perform calculation
return ind; //make indexer() the value of variable ind
} // end of indexer method
public float maxWeight() //begin maxWeight method
float maxwt; //declare local variable maxwt
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maxwt = UPPER*ht*ht; //perform calculation
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public float minWeight() //begin minWeight method
float minwt; //declare local variable minwt
final float LOWER= 20.0f; //declare variable LOWER as a float with a decimal value of 20.0
minwt = LOWER*ht*ht; //perform calculation
return minwt; //make minWeight() the value of variable minwt
} // end of minWeight method
public void you(Graphics g)
String statement;
if(wt > max) statement="You are very fat";
else if(wt < min) statement="You are very thin";
else statement="You are in the recommended weight range for your height";
g.drawString(statement, 20,210);
public void paint(Graphics g) //begin paint method, define g as Graphics
you(g);
index=indexer(); //covert method indexer() to variable index
max=maxWeight(); //convert method maxWeight() to variable max
min=minWeight(); //convert method minWeight() to variable min
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g.drawRect(5,100,300,75); //define size of rectangle
g.setColor(new Color(255,107,9)); //set new colour
g.drawString("BMI is " + fmt2.format(index) + " for " + fmt2.format(wt) + "kg",20,120); //create string in paint, define its on screen position
g.drawString("Maximum bodyweight is " + fmt2.format(max) + "kg", 20,140); //create string in paint, define its on screen position
g.drawString("Minimum bodyweight is " + fmt2.format(min) + "kg", 20,160); //create string in paint, define its on screen position
} // end of paint method
} // end of BmiThanks again,
Simon -
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single signoff-URL: http://wmsi001370:7777/pls/orasso/orasso.wwsso_app_admin.ls_logout
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<jar href="LottoMadness.jar"/>
</resources>
<application-desc main-class="LottoMadness"/>
</jnlp>I've deployed the .jnlp, .gif, and .jar to MS IIS, running locally on my PC.
When I attempt to render the .jnlp in IE I obtain an 'Application Error' window stating 'Unable to Launch Application'. Clicking details gives me:
com.sun.deploy.net.FailedDownloadException: Unable to load resource: http://localhost/LottoMadness/LottoMadness.jnlp
at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)I have configured MS IIS for Web Start, by setting the Extension/Content Type fields to .jnlp and application/x-java-jnlp-file.
(The .jnlp is basically from 'Programming with Java in 24 Hours', as this is the book I am learning Java from.)AndrewThompson64 wrote:
I am not used to seeing references to a local server that do not include a port number.
E.G. http://localhost:8080/LottoMadness/
I have deployed the following HTML (HelpMe.html) to the web server:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Untitled</title>
</head>
<body>
Help Me!
</body>
</html>When I attempt to render the URL in IE, I see the page just fine. The URL is use is:
http://localhost/LottoMadness/HelpMe.htmlSo, I think my web server setup and usage is ok.
>
As an aside, what happens if (your MS IIS is running and) you click a direct link to..
[http://localhost/LottoMadness/LottoMadness.jnlp|http://localhost/LottoMadness/LottoMadness.jnlp]
When I click this link I get the error and exception I cited in my previous post. -
Partner Application written in other language than PL/SQL and Java
I have an application written in another language than PL/SQL or Java. I want to integrate this application as an Partner apps where I use the same user repository as Portal.
Can I integrate the application by calling a stored PL/SQL-procedure based on the PLSQL SSO APIs examples that authenticates the user based on the username/password in portal and redirects the user to the application ?
Are there any examples / references where this has been done ?
JensCheck out the PDK referance for URL-Services, which allow you to integrate with any web based service/content.
http://portalstudio.oracle.com/servlet/page?_pageid=350&_dad=ops&_schema=OPSTUDIO -
Possibility of drawing numbers on java bouncing balls?
Can anyone show me how to put numbers on these moving balls in my code. I need the numbers 1-60 on them. I have two sets the red and white. Here is my code. Any help is appreciated. I am trying to write a program to represent the powerball.
import java.awt.*;
import java.applet.*;
import java.util.*;
import javax.swing.*;
import java.awt.Rectangle;
class CollideBall{
int width, height;
public static final int diameter=20;
//coordinates and value of increment
double x, y, xinc, yinc, coll_x, coll_y;
boolean collide;
Color color;
Graphics g;
Rectangle r;
//the constructor
public CollideBall(int w, int h, int x, int y, double xinc, double yinc, Color c){
width=w;
height=h;
this.x=x;
this.y=y;
this.xinc=xinc;
this.yinc=yinc;
color=c;
r=new Rectangle(150,80,130,90);
public double getCenterX() {return x+diameter/2;}
public double getCenterY() {return y+diameter/2;}
public void alterRect(int x, int y, int w, int h){
r.setLocation(x,y);
r.setSize(w,h);
public void move(){
if (collide){
double xvect=coll_x-getCenterX();
double yvect=coll_y-getCenterY();
if((xinc>0 && xvect>0) || (xinc<0 && xvect<0))
xinc=-xinc;
if((yinc>0 && yvect>0) || (yinc<0 && yvect<0))
yinc=-yinc;
collide=false;
x+=xinc;
y+=yinc;
//when the ball bumps against a boundary, it bounces off
//ball width is 6 so if the ball becomes less then 6 it is touching the frame
//if ball is greater than the entire width-the diameter of the rectangle, then the ball is just touching the frame of the rectangle and must switch to negative to go in opposit direction
if(x<6 || x>width-diameter){
xinc=-xinc;
x+=xinc;
//same thing as about just about the Y-axis instead of the x-axis
if(y<6 || y>height-diameter){
yinc=-yinc;
y+=yinc;
public void hit(CollideBall b){
if(!collide){
coll_x=b.getCenterX();
coll_y=b.getCenterY();
collide=true;
public void paint(Graphics gr){
g=gr;
g.setColor(color);
//the coordinates in fillOval have to be int, so we cast
//explicitly from double to int
g.fillOval((int)x,(int)y,diameter,diameter);
//Draws half white and half dark gray arc around the balls to give light and shadow effect
g.setColor(Color.white);
g.drawArc((int)x,(int)y,diameter,diameter,45,180);
g.setColor(Color.darkGray);
g.drawArc((int)x,(int)y,diameter,diameter,225,180);
public class BouncingBalls extends Applet implements Runnable {
Thread runner;
Image Buffer;
Graphics gBuffer;
CollideBall ball[];
//Obstacle o;
//how many balls?
static final int MAX=60;
boolean intro=true,drag,shiftW,shiftN,shiftE,shiftS;
boolean shiftNW,shiftSW,shiftNE,shiftSE;
int xtemp,ytemp,startx,starty;
int west, north, east, south;
public void init() {
Buffer=createImage(getSize().width,getSize().height);
gBuffer=Buffer.getGraphics();
ball=new CollideBall[MAX];
int w=getSize().width-5;
int h=getSize().height-5;
//our balls have different start coordinates, increment values
//(speed, direction) and colors
for (int i = 0;i<30;i++){
ball=new CollideBall(w,h,48+i,500+i,1.5,2.0,Color.white);
ball[i+30]=new CollideBall(w,h,890+i,200+i,1.5,2.0,Color.red);
public void start(){
if (runner == null) {
runner = new Thread (this);
runner.start();
/* public void stop(){
if (runner != null) {
runner.stop();
runner = null;
public void run(){
while(true) {
Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
try {runner.sleep(15);}
catch (Exception e) { }
//move our balls around
for(int i=0;i<MAX;i++){
ball[i].move();
handleCollision();
repaint();
boolean collide(CollideBall b1, CollideBall b2){
double wx=b1.getCenterX()-b2.getCenterX();
double wy=b1.getCenterY()-b2.getCenterY();
//we calculate the distance between the centers two
//colliding balls (theorem of Pythagoras)
double distance=Math.sqrt(wx*wx+wy*wy);
if(distance<b1.diameter)
return true;
return false;
private void handleCollision(){
//we iterate through all the balls, checking for collision
for(int i=0;i<MAX;i++)
for(int j=0;j<MAX;j++){
if(i!=j){
if(collide(ball[i], ball[j])){
ball[i].hit(ball[j]);
ball[j].hit(ball[i]);
public void update(Graphics g){
paint(g);
public void paint(Graphics g) {
gBuffer.setColor(Color.lightGray);
gBuffer.fillRect(0,0,getSize().width,getSize().height);
gBuffer.draw3DRect(5,5,getSize().width-10,getSize().height-10,false);
//paint our balls
for(int i=0;i<MAX;i++)
ball[i].paint(gBuffer);
g.drawImage (Buffer,0,0, this);
Thanks againthis.user wrote:
JakeG27 post your code within the code tab it will be more clear.
You can do this by clicking on CODE when you do this will appear { code} { code} post your code inbetween those to tags.
ie
{ code} code... { code}
and it will look like this
code
This must be the first sensible post you've ever made. At least you're able to copy someone else's response and pretend you know something. -
Java Bouncing Balls Threads problem?
Hello,
I am working on a homework assignment to represent a java applet with some bouncing balls inside. So far so good. The balls bounce and behave as they are supposed. The only thing is that I want to make 2 buttons, Start and Stop (this is not part of the assignment, but my free will to provide some extra stuff :) ) . I am implementing Runnable for the animation and ActionListener for the buttons. I did research on threading, but somehow I am still not getting quite the result I want. The applet is not displaying my buttons (I guess I am not implementing them correctly) and I dont know whether I have synchronized the threads correctly as well. So, I am asking for some guidance how can I do this? Thanks in advance!
As a remark, I am new to Java, as I am just starting to learn it and this is my first assignment.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JPanel;
public class Balls extends JApplet implements Runnable, ActionListener
Thread runner = null;
Image img;
Graphics gr;
BallCollision ball[];
Balls can;
JButton stopButton;
JButton startButton;
JPanel controls;
boolean stop,start;
//field for 10 balls
static final int MAX=10;
public void init()
setSize(800,600);
img = createImage(size().width,size().height);
gr = img.getGraphics();
startButton = new JButton("Start");
stopButton = new JButton("Stop");
stopButton.addActionListener(this);
startButton.addActionListener(this);
controls = new JPanel();
controls.setLayout(new FlowLayout());
controls.add(startButton);
controls.add(stopButton);
//new Thread(this).start();
ball = new BallCollision[MAX];
int w=size().width;
int h=size().height;
//creation of balls, which have different coordinates,
//speed, direction and colors
ball[0] = new BallCollision(w,h,50,20,1.5,7.5,Color.orange);
ball[1] = new BallCollision(w,h,60,210,2.0,-3.0,Color.red);
ball[2] = new BallCollision(w,h,15,70,-2.0,-2.5,Color.pink);
ball[3] = new BallCollision(w,h,150,30,-2.7,-1.0,Color.cyan);
ball[4] = new BallCollision(w,h,210,30,2.2,-12.5,Color.magenta);
ball[5] = new BallCollision(w,h,360,170,2.2,-1.5,Color.yellow);
ball[6] = new BallCollision(w,h,210,180,-1.2,-2.5,Color.blue);
ball[7] = new BallCollision(w,h,330,30,-2.2,-1.8,Color.green);
ball[8] = new BallCollision(w,h,180,220,-2.2,-1.8,Color.white);
ball[9] = new BallCollision(w,h,330,130,-2.2,9.0,Color.gray);
public void actionPerformed(ActionEvent e)
if(e.getSource() == startButton) start = true;
can.start();
if(e.getSource() == stopButton) start = false;
can.stop();
public void start()
if (runner == null)
runner = new Thread (this);
runner.start();
public void stop()
if (runner != null)
runner.stop();
runner = null;
public void run()
while(true)
try {Thread.sleep(15);}
catch (Exception e) { }
//move our balls around
for(int i=0;i<MAX;i++)
ball.move();
handleCollision();
repaint();
boolean collide(BallCollision b1, BallCollision b2)
double wx=b1.getCenterX()-b2.getCenterX();
double wy=b1.getCenterY()-b2.getCenterY();
//the distance between 2 colling balls' centres is
//calculated by the theorem of Pythagoras
double distance=Math.sqrt(wx*wx+wy*wy);
if(distance<b1.diameter)
return true;
return false;
private void handleCollision()
//ecah ball is checked for possible collisions
for(int i=0;i<MAX;i++)
for(int j=0;j<MAX;j++)
if(i!=j)
if(collide(ball[i], ball[j]))
ball[i].hit(ball[j]);
ball[j].hit(ball[i]);
public void update(Graphics g)
paint(g);
public void paint(Graphics g)
gr.setColor(Color.black);
gr.fillRect(0,0,size().width,size().height);
//paint the balls
for(int i=0;i<MAX;i++)
ball[i].paint(gr);
g.drawImage (img,0,0, this);
class BallCollision
int width, height;
int diameter=30;
//balls' coordinates and values to be incremented for directions
double x, y, xIncremented, yIncremented, coll_x, coll_y;
boolean collide;
Color color;
Graphics g;
//constructor
public BallCollision(int w, int h, int x, int y, double xInc, double yInc, Color c)
width=w;
height=h;
this.x=x;
this.y=y;
this.xIncremented=xInc;
this.yIncremented=yInc;
color=c;
public double getCenterX() {return x+diameter/2;}
public double getCenterY() {return y+diameter/2;}
public void move()
if (collide)
double xvect=coll_x-getCenterX();
double yvect=coll_y-getCenterY();
if((xIncremented>0 && xvect>0) || (xIncremented<0 && xvect<0))
xIncremented=-xIncremented;
if((yIncremented>0 && yvect>0) || (yIncremented<0 && yvect<0))
yIncremented=-yIncremented;
collide=false;
x+=xIncremented;
y+=yIncremented;
//if the ball reaches a wall, it bounces to the opposite direction
if(x<1 || x>width-diameter)
xIncremented=-xIncremented;
x+=xIncremented;
if(y<1 || y>height-diameter)
yIncremented=-yIncremented;
y+=yIncremented;
public void hit(BallCollision b)
if(!collide)
coll_x=b.getCenterX();
coll_y=b.getCenterY();
collide=true;
public void paint(Graphics graphics)
g=graphics;
g.setColor(color);
//the coordinates in fillOval have to be int, so we cast
//explicitly from double to int
g.fillOval((int)x,(int)y,diameter,diameter);well i didnt arrive at this point without reading tutorials and researching.... sometimes other people can spot your mistakes a lot easier than you can, that's why I asked for help. 10x anyway for the interest!
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