What is wrong with Calendar class?

I have a J2EE app, I'm using WebServices, EJB3 and JSF... my jsf pages call to EJBs and the EJBs call to webServices to obtain data from DB, the returned data is a custom object array (ex. Class Cost[]), each Cost Object has a Calendar member (that is required because Calendar has its representation as xs:dateTime in SOAP)... i call to webservices methods, and i obtain the data, at this time all is fine, but when the object is loaded in the EJB remote, the Cost elements lose some part of themselves, lose some part of your own Calendar... in this point i can't obtain the MONTH or the TimeZone of the Calendar object inside the Cost object, i excecute costs[0].getMoment().get(Calendar.MONTH) and results in NullPointerException... I has been inspecting the calendar object within debugging and i found that "gdate" variable is null and this generates the Exception.
I hope that someone understand this post. Sorry about my english.

I found that the problem is present in the serialization when the remote object is instantiated.
Now, I had to change the call to the local object instance, and the problem disappear.
I think, that is a bug of Java or the JBoss Implementation, currently I'm using jboss-4.0.4.CR2.

Similar Messages

What is wrong with this class? Please help

I'm trying to sort a dynamically created JComboBox into Alphabetical order. However, the class below is the result of my coding and there is a problem. the code can sort only two(2) item in the JComboBox and no more which is wrong. I do not know where i'm going wrong in the selectionSort(JComboBox cmb) method. the getLargest(JComboBox cmb) method works perfectly because i have tried it. Can somebody please take a look at my codes and help me modify it.
Thanks
James
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class SortCombo extends JFrame implements ActionListener{
JButton btnAdd, btnSort;
JComboBox cmbItems;
JTextField text1;
public SortCombo(){
super("Sorting Demo");
this.getContentPane().setLayout(new GridLayout(4,1));
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
btnAdd = new JButton("Add Item to Combo Box");
btnSort = new JButton("Sort Items in ComboBox");
text1 = new JTextField(20);
cmbItems = new JComboBox();
btnAdd.addActionListener(this);
btnSort.addActionListener(this);
this.getContentPane().add(cmbItems);
this.getContentPane().add(text1);
this.getContentPane().add(btnAdd);
this.getContentPane().add(btnSort);
this.pack();
this.show();
public void actionPerformed(ActionEvent e){
if(e.getSource() == btnAdd){
String s = text1.getText();
if (!s.equals("") && !isDuplicate(s,cmbItems))
cmbItems.addItem(text1.getText());
}else if(e.getSource() == btnSort){
selectionSort(cmbItems);
// int i = getLargest(cmbItems);
// System.out.println(i);
public boolean isDuplicate(String stationName, JComboBox cmb){
int j = cmb.getItemCount();
boolean result = false;
for (int i = 0; i < j; i++){
String s = (String)cmb.getItemAt(i);
if (stationName.trim().equalsIgnoreCase(s.trim()))
result = true;
return result;
public int getLargest(JComboBox cmb){
int indexSoFar = 0;
int size = cmb.getItemCount();
for(int currIndex = 1; currIndex < size; currIndex++){
String strSoFar = (String)cmb.getItemAt(indexSoFar);
String currStr = (String)cmb.getItemAt(currIndex);
char charSoFar = strSoFar.charAt(0); charSoFar = Character.toUpperCase(charSoFar);
char currChar = currStr.charAt(0); currChar = Character.toUpperCase(currChar);
if(currChar > charSoFar){
indexSoFar = currIndex;
return indexSoFar;
public void selectionSort(JComboBox cmb){
int n = cmb.getItemCount();
for (int last = n-1; last >=1; last--){
int largest = getLargest(cmb);
String temp = (String)cmb.getItemAt(largest);
String temp2 = (String)cmb.getItemAt(last);
cmb.removeItemAt(largest);
cmb.insertItemAt(temp2,largest);
cmb.removeItemAt(last);
cmb.insertItemAt(temp,last);
public static void main(String[] args){
new SortCombo();
}

I beleive what is wrong is that your getLargest method returns the largest to your selection sort.The selectionSort places the largest at the end.On the next iteration it finds the largest again. this time at the end where you put it.Now it just does the same thing over again placing the same item at the end until the loop runs out.What you are left with is only one item it the right spot(sometimes 2).I could not get it to work the way you had it here so I tried a rewrite.It seems to work ok but it won't sort two words that start with the same letter properly.You may have to insert an algorithm to fix this.I got rid of the getLargest method and did everything in the selectionSort method.I used what I think is called a bubble sort but I'm not sure.
I hope this is what you were looking for:)
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class SortCombo extends JFrame implements ActionListener{
     JButton btnAdd, btnSort;
     JComboBox cmbItems;
     JTextField text1;
     public SortCombo(){
          super("Sorting Demo");
          getContentPane().setLayout(new GridLayout(4,1));
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          btnAdd = new JButton("Add Item to Combo Box");
          btnSort = new JButton("Sort Items in ComboBox");
          text1 = new JTextField(20);
          cmbItems = new JComboBox();
          btnAdd.addActionListener(this);
          btnSort.addActionListener(this);
          Container pane = getContentPane();
          pane.add(cmbItems);
          pane.add(text1);
          pane.add(btnAdd);
          pane.add(btnSort);
          pack();
          show();
     public void actionPerformed(ActionEvent e){
          if(e.getSource() == btnAdd){
          String s = text1.getText();
          if (!s.equals("") && !isDuplicate(s,cmbItems))
          cmbItems.addItem(text1.getText());
          }else if(e.getSource() == btnSort){
          selectionSort(cmbItems);
     public boolean isDuplicate(String stationName, JComboBox cmb){
          int j = cmb.getItemCount();
          boolean result = false;
          for (int i = 0; i < j; i++){
               String s = (String)cmb.getItemAt(i);
               if (stationName.trim().equalsIgnoreCase(s.trim()))
               result = true;
          return result;
     public void selectionSort(JComboBox cmb){
          int count = cmb.getItemCount();
          for(int start = 0;start < count;start++){
               for(int x = start;x < count-1;x++){
                    String first = (String)cmb.getItemAt(start);
                    String next = (String)cmb.getItemAt(x+1);
                    char charFirst = first.charAt(0);
                           charFirst = Character.toUpperCase(charFirst);
                    char charNext = next.charAt(0);
                    charNext = Character.toUpperCase(charNext);
                         if(charFirst > charNext){
                              String temp = (String)cmb.getItemAt(start);
                              String temp2 = (String)cmb.getItemAt(x+1);
                              cmb.removeItemAt(start);
                              cmb.insertItemAt(temp2,start);
                              cmb.removeItemAt(x+1);
                              cmb.insertItemAt(temp,x+1);
     public static void main(String[] args){
          new SortCombo();
}p.s.(I removed the "this" references from your constructor when I rewrote it because they are implied anyway)
[email protected]

What is wrong with this class?

It would not reconize the drawImage function
I had another similar and it worked, what's with this.
import java.awt.*;
import java.applet.*;
public class PicturePrinter {
     public void init(){
     public void paint(Graphics g,Image image,int x,int y){
          g.drawImage(image,x,y,this);
}this one works:
import java.awt.*;
public class Printer {
     public void init(){
     public void paint(Graphics g,String string,int x,int y){
          g.drawString(string,x,y);
}

If you read
[url=http://java.sun.com/j2se/1.5.0/docs/api/java/awt/
Graphics.html]the relevant documentation, youwill see that there is a particular requirement for
the fourth argument for drawImage that you are
not fulfilling.
Hes making it null.

What's wrong with my class?

I have the following in a component that's a Canvas and it works perfectly:
            ungradedMark(100, 100);
            public function ungradedMark(_x:Number, _y:Number):void{
                var image:Image=new Image();
                image.source="images/geoOnOff.jpg";
                image.x=_x
                image.y=_y
                this.addChild(image)
However, if I put the function into its own class file, the image won't show. I assume that I'm missing something very basic. What's my error? Is there a different way that I should be writing the class?
Thank you.
      var _addGradingMark:GradingMarks_;
      _addGradingMark.ungradedMark(100, 100);
package {
    import mx.containers.Canvas;
    import mx.controls.Image;
    public class GradingMarks_ extends Canvas{
        public function GradingMarks_(){
        public function ungradedMark(_x:Number, _y:Number):void{
            var image:Image=new Image();
            image.source="images/geoOnOff.jpg";
            image.x=_x
            image.y=_y
            this.addChild(image)

You forgot to add the class instance to the display list.
      var _addGradingMark:GradingMarks_;
       _addGradingMark.ungradedMark(100, 100);
     addChild(_addGradingMark); // or similar

What am i doing wrong with this class please help

What am i doing wrong with this class? I'm trying to create a JFrame with a JTextArea and a ScrollPane so that text can be inserted into the text area. however evertime i run the program i cannot see the textarea but only the scrollpane. please help.
import java.io.*;
import java.util.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
public class Instructions extends JFrame{
public JTextArea textArea;
private String s;
private JScrollPane scrollPane;
public Instructions(){
super();
textArea = new JTextArea();
s = "Select a station and then\nadd\n";
textArea.append(s);
textArea.setEditable(true);
scrollPane = new JScrollPane(textArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
this.getContentPane().add(textArea);
this.getContentPane().add(scrollPane);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setTitle("Instructions");
this.setSize(400,400);
this.setVisible(true);
}//end constructor
public static void main(String args[]){
new Instructions();
}//end class

I'm just winging this so it might be wrong:
import java.io.*;
import java.util.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
public class Instructions extends JFrame{
public JTextArea textArea;
private String s;
private JScrollPane scrollPane;
public Instructions(){
super();
textArea = new JTextArea();
s = "Select a station and then\nadd\n";
textArea.append(s);
textArea.setEditable(true);
scrollPane = new JScrollPane(textArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
// Here you already have textArea in scrollPane so no need to put it in
// content pane, just put scrollPane in ContentPane.
// think of it as containers within containers
// when you try to put them both in at ContentPane level it will use
// it's layout manager to put them in there side by side or something
// so just leave this out this.getContentPane().add(textArea);
this.getContentPane().add(scrollPane);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setTitle("Instructions");
this.setSize(400,400);
this.setVisible(true);
}//end constructor
public static void main(String args[]){
new Instructions();
}//end class

I'm trying to add the system date with a Label. What is wrong with the code

import java.util.*;
import javax.swing.*;
public class CurrentDateApplet extends JApplet
     Calendar currentCalendar = Calendar.getInstance();
     JLabel dateLabel = new JLabel();
     JPanel mainPanel = new JPanel();
     int dayInteger = currentCalendar.get(Calendar.DATE);
     int monthInteger = currentCalendar.get(Calendar.MONTH)+1;
     int yearInteger = currentCalendar.get(Calendar.YEAR);
     public void init()
          mainPanel.add(dateLabel);
          setContentPane(mainPanel);
          dateLabel.append(currentCalendar.get(Calendar.HOUR) + currentCalendar.get
                    (Calendar.MINUTE);
}

As for what's wrong with the code, it would be easier if you said: it doesn't show the date (it does this instead), it doesn't compile (I get this message) etc.
Anyway I'll assume you want to display the time in a label...
dateLabel.append(currentCalendar.get(Calendar.HOUR) + currentCalendar.get
(Calendar.MINUTE);This won't compile: the parentheses are mismatched, and there is simply no such thing as append(). So we could trydateLabel.setText("" + currentCalendar.get(Calendar.HOUR) + currentCalendar.get(Calendar.MINUTE));This wroks, but looks pretty nasty and it's not how you are supposed to format dates and times. Here's the unofficial party line, nicked from one of jverd's posts:
Calculating Java dates: Take the time to learn how to create and use dates
Formatting a Date Using a Custom Format
Parsing a Date Using a Custom Format
From those links you should be able to find those applicable to times like this: http://www.exampledepot.com/egs/java.text/FormatTime.html
Using this approach you would end up with something like:import java.text.Format;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.JApplet;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class CurrentDateApplet extends JApplet
    private Date date;
    private JLabel timeLabel;
    private JPanel mainPanel;
    public void init()
        mainPanel = new JPanel();
        timeLabel = new JLabel();
        mainPanel.add(timeLabel);
        setContentPane(mainPanel);
        date = new Date();
        Format formatter = new SimpleDateFormat("HH:ss a");
        timeLabel.setText(formatter.format(date));
}

I can't figure out what's wrong with this code

First i want this program to allow me to enter a number with the EasyReader class and depending on the number entered it will show that specific line of this peom:
One two buckle your shoe
Three four shut the door
Five six pick up sticks
Seven eight lay them straight
Nine ten this is the end.
The error message i got was an illegal start of expression. I can't figure out why it is giving me this error because i have if (n = 1) || (n = 2) statements. My code is:
public class PoemSeventeen
public static void main(String[] args)
EasyReader console = new EasyReader();
System.out.println("Enter a number for the poem (0 to quit): ");
int n = console.readInt();
if (n = 1) || (n = 2)
System.out.println("One, two, buckle your shoe");
else if (n = 3) || (n = 4)
System.out.println("Three, four, shut the door");
else if (n = 5) || (n = 6)
System.out.println("Five, six, pick up sticks");
else if (n = 7) || (n = 8)
System.out.println("Seven, eight, lay them straight");
else if (n = 9) || (n = 10)
System.out.println("Nine, ten, this is the end");
else if (n = 0)
System.out.println("You may exit now");
else
System.out.println("Put in a number between 0 and 10");
I messed around with a few other thing because i had some weird errors before but now i have narrowed it down to just this 1 error.
The EasyReader class code:
// package com.skylit.io;
import java.io.*;
* @author Gary Litvin
* @version 1.2, 5/30/02
* Written as part of
* <i>Java Methods: An Introduction to Object-Oriented Programming</i>
* (Skylight Publishing 2001, ISBN 0-9654853-7-4)
* and
* <i>Java Methods AB: Data Structures</i>
* (Skylight Publishing 2003, ISBN 0-9654853-1-5)
* EasyReader provides simple methods for reading the console and
* for opening and reading text files. All exceptions are handled
* inside the class and are hidden from the user.
* <xmp>
* Example:
* =======
* EasyReader console = new EasyReader();
* System.out.print("Enter input file name: ");
* String fileName = console.readLine();
* EasyReader inFile = new EasyReader(fileName);
* if (inFile.bad())
* System.err.println("Can't open " + fileName);
* System.exit(1);
* String firstLine = inFile.readLine();
* if (!inFile.eof()) // or: if (firstLine != null)
* System.out.println("The first line is : " + firstLine);
* System.out.print("Enter the maximum number of integers to read: ");
* int maxCount = console.readInt();
* int k, count = 0;
* while (count < maxCount && !inFile.eof())
* k = inFile.readInt();
* if (!inFile.eof())
* // process or store this number
* count++;
* inFile.close(); // optional
* System.out.println(count + " numbers read");
* </xmp>
public class EasyReader
protected String myFileName;
protected BufferedReader myInFile;
protected int myErrorFlags = 0;
protected static final int OPENERROR = 0x0001;
protected static final int CLOSEERROR = 0x0002;
protected static final int READERROR = 0x0004;
protected static final int EOF = 0x0100;
* Constructor. Prepares console (System.in) for reading
public EasyReader()
myFileName = null;
myErrorFlags = 0;
myInFile = new BufferedReader(
new InputStreamReader(System.in), 128);
* Constructor. opens a file for reading
* @param fileName the name or pathname of the file
public EasyReader(String fileName)
myFileName = fileName;
myErrorFlags = 0;
try
myInFile = new BufferedReader(new FileReader(fileName), 1024);
catch (FileNotFoundException e)
myErrorFlags |= OPENERROR;
myFileName = null;
* Closes the file
public void close()
if (myFileName == null)
return;
try
myInFile.close();
catch (IOException e)
System.err.println("Error closing " + myFileName + "\n");
myErrorFlags |= CLOSEERROR;
* Checks the status of the file
* @return true if en error occurred opening or reading the file,
* false otherwise
public boolean bad()
return myErrorFlags != 0;
* Checks the EOF status of the file
* @return true if EOF was encountered in the previous read
* operation, false otherwise
public boolean eof()
return (myErrorFlags & EOF) != 0;
private boolean ready() throws IOException
return myFileName == null || myInFile.ready();
* Reads the next character from a file (any character including
* a space or a newline character).
* @return character read or <code>null</code> character
* (Unicode 0) if trying to read beyond the EOF
public char readChar()
char ch = '\u0000';
try
if (ready())
ch = (char)myInFile.read();
catch (IOException e)
if (myFileName != null)
System.err.println("Error reading " + myFileName + "\n");
myErrorFlags |= READERROR;
if (ch == '\u0000')
myErrorFlags |= EOF;
return ch;
* Reads from the current position in the file up to and including
* the next newline character. The newline character is thrown away
* @return the read string (excluding the newline character) or
* null if trying to read beyond the EOF
public String readLine()
String s = null;
try
s = myInFile.readLine();
catch (IOException e)
if (myFileName != null)
System.err.println("Error reading " + myFileName + "\n");
myErrorFlags |= READERROR;
if (s == null)
myErrorFlags |= EOF;
return s;
* Skips whitespace and reads the next word (a string of consecutive
* non-whitespace characters (up to but excluding the next space,
* newline, etc.)
* @return the read string or null if trying to read beyond the EOF
public String readWord()
StringBuffer buffer = new StringBuffer(128);
char ch = ' ';
int count = 0;
String s = null;
try
while (ready() && Character.isWhitespace(ch))
ch = (char)myInFile.read();
while (ready() && !Character.isWhitespace(ch))
count++;
buffer.append(ch);
myInFile.mark(1);
ch = (char)myInFile.read();
if (count > 0)
myInFile.reset();
s = buffer.toString();
else
myErrorFlags |= EOF;
catch (IOException e)
if (myFileName != null)
System.err.println("Error reading " + myFileName + "\n");
myErrorFlags |= READERROR;
return s;
* Reads the next integer (without validating its format)
* @return the integer read or 0 if trying to read beyond the EOF
public int readInt()
String s = readWord();
if (s != null)
return Integer.parseInt(s);
else
return 0;
* Reads the next double (without validating its format)
* @return the number read or 0 if trying to read beyond the EOF
public double readDouble()
String s = readWord();
if (s != null)
return Double.parseDouble(s);
// in Java 1, use: return Double.valueOf(s).doubleValue();
else
return 0.0;
Can anybody please tell me what's wrong with this code? Thanks

String[] message = {
    "One, two, buckle your shoe",
    "One, two, buckle your shoe",
    "Three, four, shut the door",
    "Three, four, shut the door",
    "Five, six, pick up sticks",
    "Five, six, pick up sticks",
    "Seven, eight, lay them straight",
    "Seven, eight, lay them straight",
    "Nine, ten, this is the end",
    "Nine, ten, this is the end"
if(n>0)
    System.out.println(message[n]);
else
    System.exit(0);

What is wrong with as3

this is not a question about 'how i do X'. is rather a 'discussion' (flame or whatever, but to defend or argue about aspects, not people) about 'what is wrong with as3' and what aspects whould be taken into consideration for updates. right now i am using as3, and since i paid for this license, i choose this tool over some alternatives and i am using it to do stuff for other people who pay me to do it, i think it can be helpful for all of us if some actions are started in the right direction. i have already posted about 'all people in adobe are dumbasses that do not know how to make a scripting tool and are messing up my work', but i was pissed at the time (i still am pissed) but i believe this is not the right aproach. instead, if this goes to the right people in adobe, we all may get something in the future, like better and easier todo apps and web presentations.
pre: not only about the as3 specification, but COMPLY with the specification that you set. for example, some time ago there were problems with matrix transforms. this was corrected later with a patch. but this means it is not even doing what is is supposed to do
1. scriptable masks and movement, sprites and child sprites: there is a sprite with a mask, the mask is a shape drawn via script, something like
somemask=new shape();
somemask.graphics.beginfill();
(...etc)
somesprite.mask=somemask;
just like that. now add some child sprites to 'somesprite', and make 'somesprite' move, scale and rotate. there you will have something like a kaleidoscope, but not what you expected to do with your script. as the child sprites move in the parent mask, you will see that the child sprites appear or dissapear kind of randomly, and if the child sprites are textfields, it may be that the text is rendered outside the mask, or partially rendered outside the mask (as in only part of the text), rendered with the wrongf rotation or in the wrong place. some child sprites are clipped correctly, some dissapear totally when only a part should dissapear (clipped) etc.
way around: have not tried it yet, but i have the impression that bitmaps have different criteria for clipping, so i am thinking of trying this: appli an empty filter (a filter with params so it does not have any effect on the sprite or in the textfield) so the sprite is rendered as bitmap before doing anything else with it. as i said, i have not done it yet, but it may be a way around this problem, to avoid all this inconsistency with clipping
1-b. inconsistency between hierarchy and coordinates, specially masks: you apply a mask to a sprite, yet the sprite has a set of coordinates (so 'x' in the sprite means an x relative to its container), yet the mask applied to the very same sprite, as another reference as reference for coordinates (like the stage)
2. painting via script: in any other languaje, in any other situation, something like:
beginFill(params);
(...stuff 1)
endFill();
beginFill(params);
(...stuff 2)
endFill();
(...etc)
means: render region of block 1, then render region of block 2 etc, and no matter what, it should be consistent, since there is noplace for ambiguity. if you read it, you may think what that means, even if you dont run it you may have an idea of the picture you want to draw, but not with as3. as3 somehow manages to screw something that simple, and mixes all the blocks, and somehow uses the boundaries of one block as boundaries for other block. is like all blocks are dumped into whatever, and then uses all lines defined into it as boundaries for a unique block. it changes all boundaries and generates inconsistency between what is shown and redraw regions of the resulting picture, like lines that go to the end of the screen and then dont go away in the next frames, even tough the beginfill endfill block should prevent it
3. event flow: i dont know what was the policy behind as3 event flow design. it is in no way similar or an extension to previous event flow, neither with any event flow in any other plattform. i dont know how most people start with as3; in my case, i unpacked, installed and when i tried to do something with what i already knew i could not, so i started reading the as3 docs, and since is like 800 pages long, i just read the basics and the rest i would 'wing it'. in the part of the event flow, there was something about bubbling and stuff, it was not clear at all and when i tried to do what is was said in the documentation (like preventing events to 'bubble', as is called in the documentation), i could not see any effect but i could see it was a mess. flash is not the only thing out there to work with pictures or to work with mouse events, but is the only one that deals with things like 'target' and 'currentTarget'. my first experience on needing this was when i was dealing with my own event handlers (so the only thing that had control over mouse was the stage, and i would admin everything via script). there were events generated everywhere, the stage got events that were not genrated directly over the stage, but got there not with stage coordinates but the coordinates relative to the sprite that generated the event. so if i hover the mopuse over the stage, and the stage has some things on it how does it work? i get multiple event calls, like it was hovering multiple times over the stage in a single frame, but in each call with different coordinates? and what if i set all child sprites as mouseenabled=false or compare like 'if (event.target != event.currenttarget)', what if i move the mouse over a child, does it prevent the move mouse event at all? or does it filter only the event call with only stage coordinates? in my case, every time i move over another clip (with mouseenabled = true), the stage gets it as 'mouse up', even tough there was never a mouse release, what the hell? do even the people at adobe know how to handle events with their own tool when they require it? why does an event 'bubble' when i have not specifically tell it to do it? mi thought is that this event flow was very poorly conceived, and tough the intention may have been that there were different cases and it shopuld cover all cases, they actually introduced new problems that were not present in traditional ways to handle it, and it is neither the easier way to handle things, and this way, a very simple problem turns into a very ugly thing because it must handle things that were not neccesary to handle, or were implicit in other situations.
4. legacy: since as3, all interaction is different, and if you want to do things in the new plattform, using the new features, what you already knew just goes to the garbage can. when a new tool arrives, it should be an extension to previous tools (which is a reason to update instead of just buying a new tool from a different vendor). if everything i had or knew just means nothing from now on, then i can not say 'i know flash script', and my previous knowledge gives me no advantage when aproaching the new version. as3 is a new aproach that requires doc reading and stuff, even if you knew something about previous as specifications or other oo languajes. if you decide to change things from now on, like the things mentioned in this post, instead of just throwing away everything the users alerady knew about the tool, do like in java releases, they mark some things as 'deprecated', they keep working as they should, give a warning, but also a message saying this feature is deprecated, we suggest you use this library instead.
5. lack of previous functionality: if you 'update' something, it meand all previos functionality is still there (probably improved, but not with bugs if it was working fine), plus something else. now it seems backwards, there are some things that could be done in previous versions but not in this one, like 'duplicatemovieclip'
6. inconsistency with scripting/programming paradigms: (ok, fancy work, but fits perfectly here): as3 proposed ways to handle things, but the people who designed it got 'too creative', and they did something that is not consistent neither with previous versions of as or with other languajes. the documentations is full of things like 'it looks like x languaje or languaje family, but instead of using XXX word, you must use YYY'. great, what is this? namespaces 'work like', but 'differently' for example from java, .net, .c. its got the idea that a namespace means a grouped functionality but there are rules about where should be placed the file (ok, java has this also, .net takes care of it automatically if all files are registered in the project), but what you got is a mess that 'if you know other languajes you got the general idea, but nonetheless, even if you knew this or previosu versions of as, you still have to read whatever we decided arbitrarily just to be different'. namespaces, event handling, vars definition which is not like previous scripting neither like fully typed languajes.. is just a mess.
7. lack of scripting and graphics integration: unlike flash and adobe tools that just got on the graphics side leaving all the scripting integratuion apart, most tools from other vendors integrate very well interacton with what is on the screen. the script editor: very poor. autocompletion? a drop down list that does not heklp at all, appears in the wrong places, and when you need it to go, it does not go (so if i want to move away from the uncalled drop down list, i have to click somewhere else, making developement slowewr instead of helping, so the drop down list does not capture all events when i dont want to). in other ides you double click somewhere and it will go to the part of code relevant to that event or whatever. for example microsoft tools, ok i am antimicrosoft, and one of the reasons was that when windows 95 got to market proposing itself as the ONLY pc os you could use if you wanted to keep useing the apps you already had, it was a lousy product full of flaws but you had to keep using it because you had no choice. what is so different from what is happening with flash just now? yet the ide of c# is awesome, works very well and seems reliable.
adobe people: not all user are designers that just make pretty pictures. if it is not intended for scripting then why is it there. and if there are corrections to be done, they should patch all versions, not only the last one. previous version users also paid for their versions.

Well, there is no point in arguing.
I personally believe AS3 does exactly what it promises to do within limits (read: reasonable limits) of ECMA type of language. And sometimes it doesn’t do what we expect it to for it cannot possibly emulate everyone’s thinking process. The task, I guess, is to learn to think in terms of AS3 – not to try to make AS3 think like us. No language covers all the grounds. And no, it is not Java - with no negative or positive connotation. It is what it is. Period. I just hope that AS5 will be more Java like.
You are right about the fact that it is not necessary to know all the aspects of language in order to perform the majority of tasks. But it is paramount to have a clear idea about such fundamental concepts as display list model and events. For instance, depth swap has no meaning in terms of AS3 because display list object stacking is controlled automatically and there is no need for all these jumping through hoops one has to perform in order to control depth in AS2. There no more gaps in depths and one always know where to find things.
Similarly, there is no point in having duplicateMovieClip method. More conventional OOP ways of object instantiation accomplishes just that and much more. Just because OOP object instantiation needs to be learned doesn’t mean past hacks have place in modern times. duplicateMovieClip is a horse carriage standing next to SUV. What one should choose to travel?
Events are implemented to the tee in the context of ECMA specifications. I consider Events model as very solid, it works great (exactly as expected) and never failed me. True, it takes time to get used to it. But what doesn’t?
By the way, speaking about events, contrary to believe in Adobe’s inconsideration to their following. Events are implemented with weakly reference set to false although it would be better to have it set to true. I think this is because there are smart and considerate people out there who knew how difficult it would be for programming novices to deal with lost listeners.
I think AS3 is million times better than AS2. And one of the reasons it came out this way is that Adobe made a very brave and wise decision to break totally loose from AS2’s inherent crap. They have created a totally new and very solid language. If they had tried to make it backward compatible – it would be a huge screw up, similar to how our friends at Microsoft are prostituting VB and VBA – extremely irritating approach IMHO.
Also, Flash legacy issues shouldn’t be overlooked. Flash did not start as a platform for programmers. Entire timeline concept in many ways is not compatible with the best OOP practices and advancements. I think for anyone who is used to writing classes the very fact of coding on timeline sounds awkward. It feels like a hack (and AS2 IS a pile of hacks) – the same things can be nicely packaged into classes and scale indefinitely. As such I wouldn’t expect Adobe to waste time on hacking timeline concept issues by making smarter editor. They have made a new one – FlexBuilder – instead. Serious programmers realize very soon that Flash IDE is not for developing industrial strength applications anyway. So, why bother with channeling great minds into polishing path to the dead end?
I would like to state that all this is coming form a person who knew Flash when there was no AS at all. And I applaud every new generation of this wonderful tool.
I believe Adobe does a great job making transition from timeline paradigm to total OOP venue as smooth as possible. And no, they don’t leave their devoted followers behind contrary to many claims. They are working on making developing Flash applications as easy as possible for people of all walks. Welcome Catalyst!
Of course there is not enough information about AS3 capabilities and features. But, on the other hand, I don’t know any area of human kind activities that does.

[b]Does anybody know what is wrong with my code[/b]

I cannot see what is wrong with this code but i can't get it to compile. when i try to compile it i get the
"Exception in thread "main" java.lang.NoClassDefFoundError:
Is this a problem with compiling or is it a code error?
Here is my code
public class IntCalc{
     int value;
     public IntCalc(){
          value = 0;
     public void add(int number)     {
          value = value + number;
     public void subtract(int number){
          value = value - number;
     public int getValue()     {
          return value;
Message was edited by:
SHIFTER

Youd don't have a class file. Compile it first then run it. If your compiler isnt making the .class file tell me and ill give you a link to a realy good java compiler.

JScrollPane, what is wrong with my code?

Hi, I appreciated if you helped me(perhaps by trying it out yourself?)
I wanted my JScrollPane to display what is drawn on my canvas (which may be large)by scrolling, but it says it doesn't need any vertical and horizontal scroll bars. Here is the code that has this effect
import javax.swing.*;
import java.awt.*;
public class WhatsWrong extends JApplet{
public void init(){
Container appletCont = getContentPane();
appletCont.setLayout(new BorderLayout());
JPanel p = new JPanel();
p.setLayout(new BorderLayout());
p.add(new LargeCanvas(),BorderLayout.CENTER);
int ver = ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
int hor = ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;
JScrollPane jsp = new JScrollPane(p,ver,hor);
appletCont.add(jsp,BorderLayout.CENTER);
class LargeCanvas extends Canvas{
public LargeCanvas(){
super();
setBackground(Color.white);
public void paint(Graphics g){
g.drawRect(50,50,700,700);
and the html code:
<html>
<body>
<applet code="WhatsWrong" width = 300 height = 250>
</applet>
</body>
</html>
What shall I do?
Thanks in advance.

What is wrong with your code is that your class, LargeCanvas must implement the Scrollable interface in order to be scrolled by a JScrollPane.
A comment regarding your use of Canvas and Swing components: The Java Tutorial recommends that you extend JPanel to do custom painting. Canvas is what they call a "heavyweight" component and they recommend not to mix lightweight (Swing) components and heavyweight components.
There is a lot more information on custom painting on the Java Tutorial in the Lesson "Creating a GUI with Swing.

What is Wrong with My html-el:reset Tag?

In my JSP, I used <html-el:form ...>, <htim-el:checkbox ...>, <html-el:hidden ... >, <html-el:submit ... > without any problem.
But, I got Error 500:(class: org/apache/strutsel?taglib/html/ELResetTag, method: release signature: ?V) Illegal use of nonvirtual method call
when I used:
<html-el:reset accesskey="C">Clear</html-el:reset>And the reset button does not get displayed when I
<html-el:reset>Clear</html-el:reset>Would anybody point out what is wrong with the way I used the reset tag? Thank you.

In my JSP, I used <html-el:form ...>, <htim-el:checkbox ...>, <html-el:hidden ... >, <html-el:submit ... > without any problem.
But, I got Error 500:(class: org/apache/strutsel?taglib/html/ELResetTag, method: release signature: ?V) Illegal use of nonvirtual method call
when I used:
<html-el:reset accesskey="C">Clear</html-el:reset>And the reset button does not get displayed when I
<html-el:reset>Clear</html-el:reset>Would anybody point out what is wrong with the way I used the reset tag? Thank you.

What is wrong with my menu?

What is wrong with my menu? No matter how I edit it, the links refuse to work:
http://www.followtheprompting.com
CODE:
<ul id="MenuBar1" class="MenuBarHorizontal">
          <li><a class="MenuBarItemSubmenu">Home</a>          </li>
          <li><a class="MenuBarItemSubmenu">Who We Are</a>
            <ul>
              <li><a href="Location.html">Our Location</a></li>
              <li><a href="Services.html">Our Services</a></li>
              <li><a href="Vision.html">Our Vision</a></li>
              <li><a href="Pastors.html">Our Pastors</a></li>
              <li><a href="Beliefs.html">Our Beliefs</a></li>
            </ul>
          </li>
          <li><a class="MenuBarItemSubmenu">What We Do</a>
            <ul>
              <li><a href="Children.html">Children Ministry</a>              </li>
              <li><a href="Youth.html">Youth Ministry</a></li>
              <li><a href="Worship.html">Worship</a></li>
              <li><a href="Men.html">Mens Group</a></li>
              <li><a href="Outreaches.html">Outreaches</a></li>
            </ul>
          </li>
          <li><a href="Events.html">Events</a></li>
          <li><a class="MenuBarItemSubmenu">Contact Us</a>
            <ul>
              <li><a href="Prayer.html">Prayer Request</a></li>
              <li><a href="Subscribe.html">Subscribe</a></li>
              <li><a href="Contact.html">Contact Us</a></li>
            </ul>
          </li>
          <li><a href="Blog.html">Pastor's Blog</a></li>
          <li><a class="MenuBarItemSubmenu">Media</a>
            <ul>
              <li><a href="Listen.html">Listen Online</a></li>
            </ul>
          </li>
          <li><a href="Give.html">Give</a></li>
        </ul>

The code you have listed is not the code
that is on your server, This is what is on server. As you can see, the links are not inserted.
<ul id="MenuBar1" class="MenuBarHorizontal">
          <li><a href="#">Home</a>          </li>
          <li><a href="#" class="MenuBarItemSubmenu">Who We Are</a>
            <ul>
              <li><a href="#">Our Location</a></li>
              <li><a href="#">Our Services</a></li>
              <li><a href="#">Our Community</a></li>
              <li><a href="#">Our Pastors</a></li>
              <li><a href="#">Our Beliefs</a></li>
            </ul>
          </li>
          <li><a class="MenuBarItemSubmenu" href="#">What We Do</a>
            <ul>
              <li><a href="#">Children Ministry</a>              </li>
              <li><a href="#">Youth Ministry</a></li>
              <li><a href="#">Worship</a></li>
              <li><a href="#">Mens Group</a></li>
              <li><a href="#">Outreaches</a></li>
            </ul>
          </li>
          <li><a href="#">Events</a></li>
          <li><a href="#" class="MenuBarItemSubmenu">Contact Us</a>
            <ul>
              <li><a href="#">Prayer Request</a></li>
              <li><a href="#">Subscribe</a></li>
              <li><a href="#">Contact Us</a></li>
            </ul>
          </li>
          <li><a href="#">Pastor's Blog</a></li>
          <li><a href="#" class="MenuBarItemSubmenu">Media</a>
            <ul>
              <li><a href="#">Listen Online</a></li>
            </ul>
          </li>
          <li><a href="#">Give</a></li>
        </ul>
        </div>
    </div>
</div>
<div id="content">
    <div id="flash

What is wrong with my facetime,i am using an ipad everytime i placed a call i can't hear it ringing and the person i am calling can't recieve my call as well,i did everything possible forced off my ipad,on and of facetime on settings,change id's.

What is wrong with my facetime,i am using an ipad everytime i placed a call i can't hear it ringing and the person i am calling can't recieve my call as well,i did everything possible forced off my ipad,on and off facetime on settings,change id's, mute,unmuted,reset network settings!! But nothing change,i mean is there a problem with my ipad or the facetime has a problem right now?my friend seems doesnt have a problem with her ipad,it just happen suddenly yesterday it was ok but today when i tried calling my husband this is what happens, can anyone please help me!!

- Try cleaning out/blowing out the headphone jack. Try inserting/removing the plug a dozen times or so.
Try the following to rule out a software problem
- Reset the iPod. Nothing will be lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup
- Restore to factory settings/new iPod.
- Make an appointment at the Genius Bar of an Apple store. Seems you have a bad headphone jack.
Apple Retail Store - Genius Bar
Apple will exchange your iPod for a refurbished one for this price. They do not fix yours.
Apple - iPod Repair price
A third-party place like the following will replace the jack for less. Google for more.
iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens
Replace the jack yourself
iPod Touch Repair – iFixit

What is wrong with my headphone jack? i have an ipod touch 4th generation ipod touch every pair of headphones and earbuds i plug in it has the same sound going to both sides.

what is wrong with my headphone jack? i have an ipod touch 4th generation ipod touch every pair of headphones and earbuds i plug in it has the same sound going to both sides.

- Try cleaning out/blowing out the headphone jack. Try inserting/removing the plug a dozen times or so.
Try the following to rule out a software problem
- Reset the iPod. Nothing will be lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup
- Restore to factory settings/new iPod.
- Make an appointment at the Genius Bar of an Apple store. Seems you have a bad headphone jack.
Apple Retail Store - Genius Bar
Apple will exchange your iPod for a refurbished one for this price. They do not fix yours.
Apple - iPod Repair price
A third-party place like the following will replace the jack for less. Google for more.
iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens
Replace the jack yourself
iPod Touch Repair – iFixit

What's wrong with my code? compliation error

There is a compilation error in my program
but i follow others sample prog. to do, but i can't do it
Please help me, thanks!!!
private int selectedRow, selectedCol;
final JTable table = new JTable(new MyTableModel());
public temp() {
super(new GridLayout(1, 0));
table.setPreferredScrollableViewportSize(new Dimension(600, 200));
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
ListSelectionModel rowSM = table.getSelectionModel();
rowSM.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
     //Ignore extra messages.
if (e.getValueIsAdjusting()) return;
ListSelectionModel lsm = (ListSelectionModel)e.getSource();
if (lsm.isSelectionEmpty()) {
     System.out.println("No rows are selected.");
else {
     selectedRow = lsm.getMinSelectionIndex();
System.out.println("Row " + selectedRow+ " is now selected.");
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane);
createPopupMenu();
public void createPopupMenu() {
//Create the popup menu.
JPopupMenu popup = new JPopupMenu();
// display item
JMenuItem menuItem = new JMenuItem("Delete selected");
popup.add(menuItem);
menuItem.addActionListener(new ActionListener(){
     public void actionPerformed(ActionEvent e){
          System.out.println("Display selected.");
          System.out.println("ClientID: "+table.getValueAt(selectedRow,0));
          int index = table.getSelectedColumn();
          table.removeRow(index);     <-------------------------------compliation error
     }}); //what's wrong with my code? can anyone tell
//me what careless mistake i made?
MouseListener popupListener = new PopupListener(popup);
table.addMouseListener(popupListener);
public class MyTableModel extends AbstractTableModel {
private String[] columnNames = { "ClientID", "Name", "Administrator" };
private Vector data = new Vector();
class Row{
     public Row(String c, String n, String a){
          clientid = c;
          name = n;
          admin = a;
     private String clientid;
     private String name;
     private String admin;
public MyTableModel(){}
public void removeRow(int r) {
     data.removeElementAt(r);
     fireTableChanged(null);
public int getColumnCount() {
return columnNames.length;
public int getRowCount() {
return data.size();
public String getColumnName(int col) {
return columnNames[col];
public Object getValueAt(int row, int col) {
     return "";
public boolean isCellEditable(int row, int col) {
return false;
public void setValueAt(Object value, int row, int col) {}
}

Inside your table model you use a Vector to hold your data. Create a method on your table model
public void removeRow(int rowIndex)
    data.remove(rowIndex); // Remove the row from the vector
    fireTableRowDeleted(rowIndex, rowIndex); // Inform the table that the rwo has gone
[/data]
In the class that from which you wish to call the above you will need to add a reference to your table model.

What is wrong with Calendar class?

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