Why won't this compile ?
CREATE OR REPLACE FUNCTION FN0003_GetDisabilityCode
RETURN CHAR(8);
IS
DisabilityCode CHAR(8);
BEGIN
DisabilityCode := '00000000';
RETURN DisabilityCode;
END FN0003_GetDisabilityCode;
Same as parameters, return datatype can't have length/precision and get rid of semi-colon. Change it to:
CREATE OR REPLACE FUNCTION FN0003_GetDisabilityCode
RETURN CHAR
IS
DisabilityCode CHAR(8);
BEGIN
DisabilityCode := '00000000';
RETURN DisabilityCode;
END FN0003_GetDisabilityCode;
SY.
Similar Messages
-
Help...Why won't this compile?
Why won't this compile?
Here is my code:
import java.util.Calendar;
import javax.swing.JOptionPane;
public class GetAge{
public static void main(String[] args){
int month=Integer.parseInt(JOptionPane.showInputDialog
(null,"Enter what month(MM) you were born:"));
int day=Integer.parseInt(JOptionPane.showInputDialog
(null,"Enter what day(dd) you were born:"));
int year=Integer.parseInt(JOptionPane.showInputDialog
(null,"Enter what year(yyyy) you were born:"));
Calendar rightNow = Calendar.getInstance();
int year2 = rightNow.get(Calendar.YEAR);
int day2 = rightNow.get(Calendar.DATE);
int month2 = rightNow.get(Calendar.MONTH)+1;
int years = year2-year-1;
int months = month2-month+12;
if(day2 >= day)
int days = day2-day;
else
days = day-day2+8;
JOptionPane.showMessageDialog(null,"You are: " + years
+ " years " + months + " months and " + days + " days old.");
}What you're doing is using days after the if statement; without curly braces only a valid statement is allowed.
But if you add curly braces, days will be available only in the if block.
So what you should do is:
import java.util.Calendar;
import javax.swing.JOptionPane;
public class GetAge{
public static void main(String[] args){
int month=Integer.parseInt(JOptionPane.showInputDialog
(null,"Enter what month(MM) you were born:"));
int day=Integer.parseInt(JOptionPane.showInputDialog
(null,"Enter what day(dd) you were born:"));
int year=Integer.parseInt(JOptionPane.showInputDialog
(null,"Enter what year(yyyy) you were born:"));
Calendar rightNow = Calendar.getInstance();
int year2 = rightNow.get(Calendar.YEAR);
int day2 = rightNow.get(Calendar.DATE);
int month2 = rightNow.get(Calendar.MONTH)+1;
int years = year2-year-1;
int months = month2-month+12;
int days = 0; //declare here
if(day2 >= day)
days = day2-day; //...and use here
else
days = day-day2+8; //..and here
JOptionPane.showMessageDialog(null,"You are: " + years
+ " years " + months + " months and " + days + " days old.");
} -
Functions in a For Loop defining objects from an Array. . .Why Won't This Work?!
I'm trying to put these functions into a Loop to conserve
space. Why won't this work?
.Yeah, sly one is right. You can not have the "i" inside the
onRollOver function, what you have to do is: As the movieClip class
is dynamic you can create a property of the movieClip which stores
the value if the "i". And then, inside the onRollOver function, you
have to make reference to that property.
for (i=0; i<2; i++) {
this.regArray
.iterator = i;
this.regArray.onRollOver = function () {
showRegion(regArray[this.iterator]);
this.regArray
.onRollOut = function () {
hideRegion(regArray[this.iterator]); -
I purchased the new gen 7 ipod nano and needed to update itunes to 10.7 but my current software says its up to date and won't download 10.6.8 Currently I have 10.5.8 Why won't this update?
The first generation Intel-based Mac's were released in January 2006.
Snow Leopard requires an Intel processor:
General requirements
Mac computer with an Intel processor
1GB of memory
5GB of available disk space
DVD drive for installation
Some features require a compatible Internet service provider; fees may apply.
If you go to the Apple menu & "About this Mac" this will tell you what type of processor you have: -
Why won't this song play even after I authorized the computer? It says that I need to authorize the computer, then I enter my username and password and it says the computer is already authorized. But then the song still won't play. What do I do?
Use the Apple ID support -> http://www.apple.com/support/appleid/ - click through the contact information and select the iTunes, etc., hot button. You can have Apple call you or email them.
Clinton -
All I want to do is resize the select panel to the same size as east panel. Why won't it work?
Space.java_____________________________________________
import javax.sound.sampled.*;
import java.awt.*;
import javax.sound.midi.*;
import javax.swing.*;
import java.util.*;
import java.awt.event.*;
import java.io.*;
public class Space extends JFrame implements ActionListener, Runnable{
//Sound
Sequence currentSound;
Sequencer player;
Thread soundCheck;
boolean check = true;
public void start(){
soundCheck = new Thread();
soundCheck.start();
public void run(){
try{
File bgsound = new File("Sounds" + File.separator + "Space.mid");
currentSound = MidiSystem.getSequence(bgsound);
player = MidiSystem.getSequencer();
player.open();
player.setSequence(currentSound);
player.start();
checkSound();
} catch (Exception exc){}
public void checkSound(){
while(check){
if(!player.isRunning()){
run();
try{
soundCheck.sleep((player.getMicrosecondLength() / 1000)-player.getMicrosecondPosition()); // sleep for the length of the track
}catch (InterruptedException IE){}
//Screen Variables:
Dimension SCREEN = Toolkit.getDefaultToolkit().getScreenSize();
final int SCREENWIDTH = SCREEN.width;
final int SCREENHEIGHT = SCREEN.height;
//Panels:
JPanel select, main, north, south, east;
//Buttons:
JButton instructB, cheatB, playB, exit, about;
//Labels:
JLabel open, cheat1, cheat2, cheatInstruct, i1, i2 , i3, aboutLabel;
//The container and frame:
static Space jframe;
Container content;
//The Constructor:
public Space(){
super("Space");
//set container attributes:
content = getContentPane();
content.setLayout(new BorderLayout());
//init panels:
main = new JPanel();
select = new JPanel();
north = new JPanel();
east = new JPanel();
south = new JPanel();
//set panel attributes:
select.setLayout(new GridLayout(3,0,10,10));
select.setBackground(Color.black);
main.setBackground(Color.black);
north.setBackground(Color.black);
//add panels:
content.add("West", select);
content.add("Center", main);
content.add("North", north);
content.add("East", east);
//Image Icons:
Icon exit1 = new ImageIcon("Images" + File.separator + "exit1.gif");
Icon exit2 = new ImageIcon("Images" + File.separator + "exit2.gif");
Icon about1 = new ImageIcon("Images" + File.separator + "about1.gif");
Icon about2 = new ImageIcon("Images" + File.separator + "about2.gif");
//init buttons, add their listeners, and set their attributes:
instructB = new JButton("Instructions", new ImageIcon("Images" + File.separator + "ship.gif"));
instructB.setContentAreaFilled(false);
instructB.setForeground(Color.yellow);
instructB.addActionListener(this);
select.add(instructB);
cheatB = new JButton("Cheats", new ImageIcon("Images" + File.separator + "cheat.gif"));
cheatB.setContentAreaFilled(false);
cheatB.setForeground(Color.yellow);
cheatB.addActionListener(this);
select.add(cheatB);
playB = new JButton("Play", new ImageIcon("Images" + File.separator + "ship2.gif"));
playB.setContentAreaFilled(false);
playB.setForeground(Color.yellow);
playB.addActionListener(this);
select.add(playB);
exit = new JButton();
exit.setRolloverEnabled(true);
exit.setIcon(exit1);
exit.setRolloverIcon(exit2);
exit.setBorderPainted(false);
exit.setContentAreaFilled(false);
exit.addActionListener(this);
north.add(exit);
about = new JButton();
about.setRolloverEnabled(true);
about.setIcon(about1);
about.setRolloverIcon(about2);
about.setBorderPainted(false);
about.setContentAreaFilled(false);
about.addActionListener(this);
north.add(about);
//Labels:
open = new JLabel("", new ImageIcon("Images" + File.separator + "open.gif"), JLabel.CENTER);
main.add(open);
cheat1 = new JLabel("<html><h1>tport</h1></html>");
cheat1.setForeground(Color.red);
cheat2 = new JLabel("<html><h1>zap</h1></html>");
cheat2.setForeground(Color.green);
cheatInstruct = new JLabel("<html><h1>Type a cheat at any time during a game, and press the \"Enter\" key.</html></h1>");
cheatInstruct.setForeground(Color.blue);
i1 = new JLabel("<html><h1>The arrow keys move your ship.</h1></html>");
i1.setForeground(Color.red);
i2 = new JLabel("<html><h1>The space-bar fires the gun.</h1></html>");
i2.setForeground(Color.green);
i3 = new JLabel("<html><h1>The red circles give upgrades.</html></h1>");
i3.setForeground(Color.blue);
aboutLabel = new JLabel("", new ImageIcon("Images" + File.separator + "aboutImage.gif"), JLabel.CENTER);
//centerPanel();
private void centerPanel(final int width, final int height){
try{
Runnable setPanelSize = new Runnable(){
public void run(){
east.setPreferredSize(new Dimension(width, height));
SwingUtilities.invokeAndWait(setPanelSize);
} catch (Exception e){}
public void actionPerformed(ActionEvent e){
//if the play button was pressed do:
if(e.getSource() == playB){
//do something
//else if the cheat button was pressed do:
else if(e.getSource() == cheatB){
//remove and add components
main.removeAll();
main.setLayout(new GridLayout(3,0,0,0));
main.add(cheat1);
main.add(cheat2);
main.add(cheatInstruct);
main.repaint();
main.validate();
else if(e.getSource() == instructB){
//remove and add components
main.removeAll();
main.setLayout(new GridLayout(3,0,0,0));
main.add(i1);
main.add(i2);
main.add(i3);
main.repaint();
main.validate();
else if(e.getSource() == exit){
jframe.setVisible(false);
showCredits();
else if(e.getSource() == about){
main.removeAll();
main.setLayout(new FlowLayout());
main.add(aboutLabel);
main.repaint();
main.validate();
public void showCredits(){
try{
String[] args = {};
Credits.main(args);
}catch (Exception e){}
public static void main(String args[]){
jframe = new Space();
jframe.setUndecorated(true);
jframe.setBounds(0, 0, jframe.SCREENWIDTH, jframe.SCREENHEIGHT);
jframe.setVisible(true);
jframe.show();
jframe.setResizable(false);
jframe.setDefaultCloseOperation(EXIT_ON_CLOSE);
jframe.centerPanel(jframe.select.getWidth(), jframe.select.getHeight());
jframe.run(); //start music
}The reason it wasn't working was because you were calling the method after you had set the frame visible, so you saw no change. On top of that, jframe.select.getWidth() only works after the frame is visible in this case. So it's best to set a fixed size for one of them, then use getWidth, or as I did... it's the same thing. I also changed the centerPanel method, I'm not sure if all that's exactly needed, but you can change it back if you think you'll need it.
import javax.sound.sampled.*;
import java.awt.*;
import javax.sound.midi.*;
import javax.swing.*;
import java.util.*;
import java.awt.event.*;
import java.io.*;
public class Space extends JFrame implements ActionListener, Runnable{
//Sound
Sequence currentSound;
Sequencer player;
Thread soundCheck;
boolean check = true;
public void start(){
soundCheck = new Thread();
soundCheck.start();
public void run(){
try{
File bgsound = new File("Sounds" + File.separator + "Space.mid");
currentSound = MidiSystem.getSequence(bgsound);
player = MidiSystem.getSequencer();
player.open();
player.setSequence(currentSound);
player.start();
checkSound();
} catch (Exception exc){}
public void checkSound(){
while(check){
if(!player.isRunning()){
run();
try{
soundCheck.sleep((player.getMicrosecondLength() / 1000)-player.getMicrosecondPosition()); // sleep for the length of the track
}catch (InterruptedException IE){}
//Screen Variables:
Dimension SCREEN = Toolkit.getDefaultToolkit().getScreenSize();
final int SCREENWIDTH = SCREEN.width;
final int SCREENHEIGHT = SCREEN.height;
//Panels:
JPanel select, main, north, south, east;
//Buttons:
JButton instructB, cheatB, playB, exit, about;
//Labels:
JLabel open, cheat1, cheat2, cheatInstruct, i1, i2 , i3, aboutLabel;
//The container and frame:
static Space jframe;
Container content;
//The Constructor:
public Space(){
super("Space");
//set container attributes:
content = getContentPane();
content.setLayout(new BorderLayout());
//init panels:
main = new JPanel();
select = new JPanel();
north = new JPanel();
east = new JPanel();
south = new JPanel();
//set panel attributes:
select.setLayout(new GridLayout(3,0,10,10));
select.setBackground(Color.black);
main.setBackground(Color.black);
north.setBackground(Color.black);
//add panels:
content.add("West", select);
content.add("Center", main);
content.add("North", north);
content.add("East", east);
//Image Icons:
Icon exit1 = new ImageIcon("Images" + File.separator + "exit1.gif");
Icon exit2 = new ImageIcon("Images" + File.separator + "exit2.gif");
Icon about1 = new ImageIcon("Images" + File.separator + "about1.gif");
Icon about2 = new ImageIcon("Images" + File.separator + "about2.gif");
//init buttons, add their listeners, and set their attributes:
instructB = new JButton("Instructions", new ImageIcon("Images" + File.separator + "ship.gif"));
instructB.setContentAreaFilled(false);
instructB.setForeground(Color.yellow);
instructB.addActionListener(this);
select.add(instructB);
cheatB = new JButton("Cheats", new ImageIcon("Images" + File.separator + "cheat.gif"));
cheatB.setContentAreaFilled(false);
cheatB.setForeground(Color.yellow);
cheatB.addActionListener(this);
select.add(cheatB);
playB = new JButton("Play", new ImageIcon("Images" + File.separator + "ship2.gif"));
playB.setContentAreaFilled(false);
playB.setForeground(Color.yellow);
playB.addActionListener(this);
select.add(playB);
exit = new JButton();
exit.setRolloverEnabled(true);
exit.setIcon(exit1);
exit.setRolloverIcon(exit2);
exit.setBorderPainted(false);
exit.setContentAreaFilled(false);
exit.addActionListener(this);
north.add(exit);
about = new JButton();
about.setRolloverEnabled(true);
about.setIcon(about1);
about.setRolloverIcon(about2);
about.setBorderPainted(false);
about.setContentAreaFilled(false);
about.addActionListener(this);
north.add(about);
//Labels:
open = new JLabel("", new ImageIcon("Images" + File.separator + "open.gif"), JLabel.CENTER);
main.add(open);
cheat1 = new JLabel("<html><h1>tport</h1></html>");
cheat1.setForeground(Color.red);
cheat2 = new JLabel("<html><h1>zap</h1></html>");
cheat2.setForeground(Color.green);
cheatInstruct = new JLabel("<html><h1>Type a cheat at any time during a game, and press the \"Enter\" key.</html></h1>");
cheatInstruct.setForeground(Color.blue);
i1 = new JLabel("<html><h1>The arrow keys move your ship.</h1></html>");
i1.setForeground(Color.red);
i2 = new JLabel("<html><h1>The space-bar fires the gun.</h1></html>");
i2.setForeground(Color.green);
i3 = new JLabel("<html><h1>The red circles give upgrades.</html></h1>");
i3.setForeground(Color.blue);
aboutLabel = new JLabel("", new ImageIcon("Images" + File.separator + "aboutImage.gif"), JLabel.CENTER);
east.setPreferredSize(new Dimension(125, SCREEN.width));
//centerPanel();
/*private void centerPanel(final int width, final int height){
try{
Runnable setPanelSize = new Runnable(){
public void run(){
east.setPreferredSize(new Dimension(width, height));
SwingUtilities.invokeAndWait(setPanelSize);
} catch (Exception e){}
private void centerPanel(final int width, final int height)
east.setPreferredSize(new Dimension(width, height));
public void actionPerformed(ActionEvent e){
//if the play button was pressed do:
if(e.getSource() == playB){
//do something
//else if the cheat button was pressed do:
else if(e.getSource() == cheatB){
//remove and add components
main.removeAll();
main.setLayout(new GridLayout(3,0,0,0));
main.add(cheat1);
main.add(cheat2);
main.add(cheatInstruct);
main.repaint();
main.validate();
else if(e.getSource() == instructB){
//remove and add components
main.removeAll();
main.setLayout(new GridLayout(3,0,0,0));
main.add(i1);
main.add(i2);
main.add(i3);
main.repaint();
main.validate();
else if(e.getSource() == exit){
jframe.setVisible(false);
//showCredits();
else if(e.getSource() == about){
main.removeAll();
main.setLayout(new FlowLayout());
main.add(aboutLabel);
main.repaint();
main.validate();
/*public void showCredits(){
try{
String[] args = {};
Credits.main(args);
}catch (Exception e){}
public static void main(String args[]){
jframe = new Space();
//jframe.centerPanel(500, jframe.select.getHeight());
jframe.setUndecorated(true);
jframe.setBounds(0, 0, jframe.SCREENWIDTH, jframe.SCREENHEIGHT);
jframe.setVisible(true);
jframe.show();
jframe.setResizable(false);
jframe.setDefaultCloseOperation(EXIT_ON_CLOSE);
//jframe.centerPanel(jframe.select.getWidth(), jframe.select.getHeight());
jframe.run(); //start music
}Sorry I lost all the indenting :) I guess you can take a look at the few lines I changed and copy those lines. -
Why won't the form on this page submit?
www.milesmemorials.com/contact.html
Php for this form is-
<?php
$name = $_POST['name'];
$visitor_email = $_POST['email'];
$message = $_POST['message'];
//Validate first
if(empty($name)||empty($visitor_email))
echo "Name and email are mandatory!";
exit;
if(IsInjected($visitor_email))
echo "Bad email value!";
exit;
$email_from = "milesmemorials.com";//<== update the email address
$email_subject = "Message from Miles Memorial contact form";
$email_body = "Visitors name: $name.\n".
"Message:\n $message".
$to = "[email protected]";//<== update the email address
$headers = 'From: '.$visitor_email."\r\n";
$headers .='Reply-To:'.$visitor_email."\r\n";
//Send the email!
mail($to,$email_subject,$email_body,$headers);
//done. redirect to thank-you page.
header('Location: thankyou.html');
// Function to validate against any email injection attempts
function IsInjected($str)
$injections = array('(\n+)',
'(\r+)',
'(\t+)',
'(%0A+)',
'(%0D+)',
'(%08+)',
'(%09+)'
$inject = join('|', $injections);
$inject = "/$inject/i";
if(preg_match($inject,$str))
return true;
else
return false;
?>>I do apologise if i seem slow, i am still very new to dreamweaver
Just to be clear, this is not an issue with learning dreamweaver. This is just a lack of understanding of HTML and PHP. You need to learn those first before trying to learn DW.
You have a form field named 'donorName' but are checking for a field named 'name'.
$name = $_POST['name'];
<input name="donerName" type="text"
You need to rename one or the other. -
Consolidate Library - why won't this work?
Hi there,
I've been using iTunes and my iPod on several iMacs successfully for years - I've just changed to a PC and now I feel like a beginner!
I can't seem to get iTunes for Windows to seek out all my MP3s and put them in iTunes. The only way I can get iTunes to put them in it's library is to play them - then iTunes recognises then and remebers them. I have tried clicking on consolidate library - nothing. I have tried downloading my new music directly into the iTunes music folder - nothing. I can maunally add the file I download music into, but I don't want to have to do that all the time.
Why won't iTunes just find my music for me? It does on my iMac!I dont know!
In what way is it not working? -
Why won't this slide show run it compiles
import java.awt.*;
import java.applet.*;
import java.net.*;
public class SlideShow extends Applet {
private Image[] images;
private String[] text;
private Label captions;
private volatile int curFrame;
private Thread timerThread;
private volatile boolean noStopRequested;
private boolean paused;
private final Object pauseLock = new Object();
public static void main( String[] args )
new SlideShow();
private void printThreadName(String prefix) {
String name = Thread.currentThread().getName();
System.out.println(prefix + name);
public void init() {
images = new Image[3];
text = new String[3];
captions = new Label();
setLayout(new BorderLayout());
add(BorderLayout.SOUTH, captions);
Label name = new Label("by Claude Monet");
name.setAlignment(Label.CENTER);
add(BorderLayout.EAST, name);
URL fig = null;
try {
fig = new URL("http://developer.java.sun.com:8080/" +
"developer/technicalArticles/Threads/applet/");
} catch (java.net.MalformedURLException ex) {
System.out.println("Bad URL");
return;
images[0] = getImage(fig, "bordighera.jpg");
images[1] = getImage(fig, "etretat.jpg");
images[2] = getImage(fig, "leyden.jpg");
text[0] = "Garden in Bordighera";
text[1] = "Rock Arch West of Etretat";
text[2] = "Bulbfield and Windmill near Leyden";
printThreadName("init is ");
startThread();
private void startThread() {
paused = true;
noStopRequested = true;
// Use this inner class to hide the public run method
Runnable r = new Runnable() {
public void run() {
runWork();
timerThread = new Thread(r, "Timer");
timerThread.start();
printThreadName("startThread is ");
private void stopThread() {
noStopRequested = false;
timerThread.interrupt();
printThreadName("stopThread is ");
private void runWork() { // note that this is private
printThreadName("run is ");
curFrame = 0;
try {
while ( noStopRequested ) {
waitWhilePaused();
curFrame = ( curFrame + 1 ) % images.length;
repaint();
Thread.sleep(3000);
} catch ( InterruptedException x ) {
// reassert interrupt
Thread.currentThread().interrupt();
System.out.println("interrupt and return from run");
private void setPaused(boolean newPauseState) {
synchronized ( pauseLock ) {
if ( paused != newPauseState ) {
paused = newPauseState;
pauseLock.notifyAll();
private void waitWhilePaused() throws InterruptedException {
synchronized ( pauseLock ) {
while ( paused ) {
pauseLock.wait();
public void paint(Graphics g) {
update(g);
printThreadName("paint is ");
public void update(Graphics g) {
g.drawImage(images[curFrame], 0, 0, this);
captions.setText(text[curFrame]);
printThreadName("update is ");
public void start() {
setPaused(false);
printThreadName("start is ");
public void stop() {
setPaused(true);
printThreadName("stop is ");
public void destroy() {
stopThread();
for (int i = 0; i < images.length; i++) {
images.flush();
images[i] = null;
text[i] = null;
images = null;
text = null;
printThreadName("destroy is ");w.r.t. the title of your topic: the set C of compilable programs is much
larger than the set R of programs that run correctly: |C| > |R|. This
is implies that at most n == |C|-|R| programs need some debugging.
The easiest form of debugging (oftenly overlooked) is System.out.println
which, when applied strategically, can do wonders: when two of those
printlns are inserted at point X and Y, and if at point X everything seems
to be correct while at point Y (later in time) everything seems to be rotten
to the bone, inserting another println at point (X+Y)/2 narrows down the
exact location of where the ugly bug hides from you.
kind regards,
Jos -
Why won't this source code compile?
I have been writing a simple app for a simple form. I have been using a gridbaglayout and checked compilation almost every step of the way, but then right as i am getting towards the end and have to start putting in the actioneventlisteners etc. ......... My code doesn't compile.
Here is the source code:
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class LearnerLookup extends JFrame implements ActionListener {
void buildConstraints(GridBagConstraints gbc, int gx, int gy,
int gw, int gh, int wx, int wy) {
gbc.gridx = gx;
gbc.gridy = gy;
gbc.gridwidth = gw;
gbc.gridheight = gh;
gbc.weightx = wx;
gbc.weighty = wy;
/** Creates a new instance of LearnerLookup */
public LearnerLookup() {
super("Learner Lookup");
setBounds(225, 250, 300, 180);
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints constraints = new GridBagConstraints();
JPanel pane = new JPanel();
pane.setLayout(gridbag);
// Last Name Label
buildConstraints(constraints, 0, 0, 1, 1, 25, 25);
constraints.fill = GridBagConstraints.NONE;
constraints.anchor = GridBagConstraints.EAST;
JLabel lastNameLabel = new JLabel("Last Name:", JLabel.LEFT);
gridbag.setConstraints(lastNameLabel, constraints);
pane.add(lastNameLabel);
// Last Name Field
buildConstraints(constraints, 1, 0, 1, 1, 75, 0);
constraints.fill = GridBagConstraints.HORIZONTAL;
JTextField lastNameField = new JTextField(20);
gridbag.setConstraints(lastNameField, constraints);
pane.add(lastNameField);
// First Name Label
buildConstraints(constraints, 0, 1, 1, 1, 0, 25);
constraints.fill = GridBagConstraints.NONE;
constraints.anchor = GridBagConstraints.EAST;
JLabel firstNameLabel = new JLabel("First Name:", JLabel.LEFT);
gridbag.setConstraints(firstNameLabel, constraints);
pane.add(firstNameLabel);
//First Name Field
buildConstraints(constraints, 1, 1, 1, 1, 0, 0);
constraints.fill = GridBagConstraints.HORIZONTAL;
JTextField firstNameField = new JTextField(20);
gridbag.setConstraints(firstNameField, constraints);
pane.add(firstNameField);
// Admission Number Label
buildConstraints(constraints, 0, 2, 1, 1, 0, 25);
constraints.fill = GridBagConstraints.NONE;
constraints.anchor = GridBagConstraints.EAST;
JLabel admNumLabel = new JLabel("Admission Number:", JLabel.LEFT);
gridbag.setConstraints(admNumLabel, constraints);
pane.add(admNumLabel);
// Admission Number Field
buildConstraints(constraints, 1, 2, 1, 1, 0, 0);
constraints.fill = GridBagConstraints.HORIZONTAL;
JTextField admNumField = new JTextField(10);
gridbag.setConstraints(admNumField, constraints);
pane.add(admNumField);
// Enter Button
buildConstraints(constraints, 0, 3, 1, 1, 0, 15);
constraints.fill = GridBagConstraints.HORIZONTAL;
constraints.anchor = GridBagConstraints.SOUTHWEST;
JButton enterButton = new JButton("Enter");
gridbag.setConstraints(enterButton, constraints);
pane.add(enterButton);
// Clear Button
buildConstraints(constraints, 1, 3, 1, 1, 0, 0);
constraints.fill = GridBagConstraints.HORIZONTAL;
constraints.anchor = GridBagConstraints.SOUTHEAST;
JButton clearButton = new JButton("Clear");
gridbag.setConstraints(clearButton, constraints);
pane.add(clearButton);
//Content Pane
setContentPane(pane);
public static void main(String[] arguments) {
LearnerLookup lookup = new LearnerLookup();
ExitWindow exit = new ExitWindow();
lookup.addWindowListener(exit);
lookup.show();
public void actionPerformed(ActionEvent evt) {
Object source = evt.getSource();
if (source == enterButton);
The error message that I get is the following:
LearnerLookup.java [101:1] cannot resolve symbol
symbol : variable enterButton
location: class LearnerLookup
if (source == enterButton);
^
1 error
Errors compiling LearnerLookup.
I'd be glad for some enlightenment on this one.
ThanksenterButton is declared inside the constructor and so is not accessible from actionPerformed.
Declare enterButton as an instance variable and remove the declaration from the constructor.
e.g.public class LearnerLookup extends JFrame implements ActionListener {
JButton enterButton;and in constructor:
// JButton enterButton = new JButton("Enter"); Remove this line
enterButton = new JButton("Enter"); // replace with this. You'll probably need to do this for all the components with actionPerformed methods. -
I have four classes. I have been told that i can compile the main one and the rest will compile by them selves. This doesn't seem to work. I can't even compile then seperatley. Any ideas why they won't work?
Main Code;
public class TestBoundedBuffer {
public static void main(String args[] ) {
// just create the two threads and the bounded buffer
BoundedBuffer b = new BoundedBuffer();
ProduceIntegers p = new ProduceIntegers(b);
ConsumeIntegers c = new ConsumeIntegers(b);
p.start();
c.start();
THREE OTHER CLASSES:
public class BoundedBuffer {
private static final int BUFFER_SIZE = 5;
private int count, in, out;
private int [] buffer;
public BoundedBuffer() {
count = 0;
in = 0;
out = 0;
buffer = new int[BUFFER_SIZE];
public synchronized void enter(int item) {
while (count == BUFFER_SIZE) {
try {
wait();
catch (InterruptedException e) { }
// add an item to the buffer
count++;
buffer[in] = item;
in = (in + 1) % BUFFER_SIZE;
notify();
public synchronized int remove() {
int item;
while (count == 0) {
try {
wait();
catch (InterruptedException e) { }
// Remove an item from the buffer
count--;
item = buffer[out];
out = (out + 1) % BUFFER_SIZE;
notify();
return item;
NEXT CLASS:
public class ProduceIntegers extends Thread {
private BoundedBuffer buff;
public ProduceIntegers( BoundedBuffer b ) {
buff = b;
public void run() {
for (int i=0; i<100; i++) {
System.out.println("Produced " + i);
buff.enter(i);
NEXT CLASS:
public class ConsumeIntegers extends Thread {
private BoundedBuffer buff;
public ConsumeIntegers( BoundedBuffer b ) {
buff = b;
public void run() {
for (int i=0; i<100; i++) {
int item = buff.remove();
System.out.println( "Consumed " + item);1) each of the 4 classes needs to be written in their own .java file, and in the same directory as the main .java file
or
2) TestBoundedBuffer.java can contain all the code for the other 3 classes, but you have to remove "public" as the class accessor.
ie
public class ProduceIntegers extends Thread {
becomes
class ProduceIntegers extends Thread { -
Please tell me why this script won't work with Firefox. It works with Safari. Here is the page that includes the script: www.lionsgatehoa.org/newslettertest.html. Thank you. Tom Engleman
Here is the script in my html document:
<embed src="News2008Fall.pdf" width="615" height="3200"></embed>
edit: removed phone #Works for me on Linux.<br />
Your system details list doesn't show the Adobe Reader plugin, so you will have to (re)install that program.
See:
*https://support.mozilla.org/kb/Using+the+Adobe+Reader+plugin+with+Firefox
*http://kb.mozillazine.org/Adobe_Reader
*http://get.adobe.com/reader/otherversions/ -
Whenever I try to compile anything, I get 100 errors and 206 warnings, saying:
java/net/URI.java [2,572:1] warning: as of release 1.4, assert is a keyword, and may not be used as an identifier
assert false;
^
and
java/net/URI.java [2,572:1] not a statement
assert false;
^
I am not using java/net/URI.java or importing any programs, so I do not understand why the compiler is giving me errors and warnings.Which version of JDK are you running?
What has changed all of a sudden? If this behavior hasn't happened before, something had to have triggered it.
Have you installed Oracle? It tends to install it's own JDK. Have you installed/uninstalled anything else? Got any old JARs hiding in the jre/lib/ext directory that you've forgotten about? They could be conflicting with something else that you've got on your machine.
It's impossible to tell based on the little information you've provided. That's where I'd advise that you start looking. Something changed - it's up to you to remember what it is and put it right. - MOD -
Why won't this MERGE statement work?
I am testing out a MERGE statement, which contains a subquery that will return no rows...on this condition, it should insert a record; however I get 0 records merged. Why is this?
Ultimately, the hard-coded values will actually be passed in as parameters. If those a record with those four values is not found, then it should insert.
MERGE INTO tb_slea_election_worksheet A
USING
(SELECT i.slea_year,i.empid,i.bda_sum_sort,i.bda_dtl_sort FROM tb_slea_election_worksheet i
WHERE slea_year = '2008'
AND empid = '6468T'
AND bda_sum_sort = '30'
AND bda_dtl_sort = '9999'
) B
ON (A.slea_year = B.slea_year
AND A.empid =B.empid
AND A.bda_sum_sort = B.bda_sum_sort
AND A.bda_dtl_sort = B.bda_dtl_sort)
WHEN MATCHED THEN
UPDATE SET A.fa_proj_exp_amt = 888
WHEN NOT MATCHED THEN
INSERT (slea_year,empid,bda_sum_sort,bda_dtl_sort,act_exp_lst_yr,fa_proj_exp_amt)
VALUES ( '2008','6468T','30','9999','0','55');A merge statement is just a much more efficient way of doing something like this pl/sql block
DECLARE
l_n NUMBER;
BEGIN
FOR r IN (SELECT pk, col1, col2 FROM source) LOOP
BEGIN
SELECT 1 INTO l_n
FROM target
WHERE pk = r.pk;
UPDATE target
SET col1 = r.col1,
col2 = r.col2
WHERE pk = r.pk;
EXCEPTION WHEN NO_DATA_FOUND THEN
INSERT INTO target
VALUES(r.pk, r.col1, r.col2);
END;
END LOOP;
END;So, if the select from source returns no rows, nothing is going to happen.
John -
Why won't this piece of code work?
Hello all, i am new to HTML and web design and i'm trying to make a website. I created this piece of code so that when the user mouses over one of the links (jpg image) it will change colors ( i have the same image in different color scheme saved in the same folder).
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>XXXXXXXXXX</title>
</head>
<body bgcolor="#000000">
<table width="1050" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td><table width="1050" border="0" cellspacing="0" cellpadding="0">
<tr>
<td><img src="_images/XXXXbanner.jpg" width="1050" height="311" alt="banner" /></td>
</tr>
</table>
<table width="901" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="150"><a href="index.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ButtonOne','','_images/home_on.jpg',1)">
<img name="ButtonOne" border="0" src="_images/home.jpg" width="150" height="75" alt="home" /></a></td>
<td width="150"><a href="gallery.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ButtonTwo','','_images/gallery_on.jpg',1)">
<img name="ButtonTwo" border="0" src="_images/gallery.jpg" width="150" height="75" alt="gallery" /></a></td>
<td width="150"><a href="products.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ButtonThree','','_images/product_on.jpg',1)">
<img name="ButtonThree" border="0" src="_images/product.jpg" width="150" height="75" alt="products" /></a></td>
<td width="150"><a href="store.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ButtonFour','','_images/shop_on.jpg',1)">
<img name="ButtonFour" border="0" src="_images/shop.jpg" width="150" height="75" alt="store" /></a></td>
<td width="150"><a href="profile.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ButtonFive','','_images/profile_on.jpg',1)">
<img name="ButtonFive" border="0" src="_images/profile.jpg" width="150" height="75" alt="profile" /></a></td>
<td width="151"><a href="contactus.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ButtonSix','','_images/contact_us_on.jpg',1)">
<img name="ButtonSix" border="0" src="_images/contact_us.jpg" width="150" height="75" alt="contact" /></a></td>
</tr>
</table>
<table width="1050" border="0" cellspacing="0" cellpadding="0">
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
<p> </p>
<p> </p></td>
</tr>
</table>
</body>
</html>
the images and banner are showing up fine and i havent mistpyed any of the locations/file names. why doesn't the icon change colors (display the "on" image) when u hover the mouse over it? please help thanks in advance.
** i'm using Adobe Dreamweaver CS4He's right...
try instering this into the head tags of your html
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_preloadImages() { //v3.0
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
function MM_swapImgRestore() { //v3.0
var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
function MM_swapImage() { //v3.0
var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
//-->
</script>
Maybe you are looking for
-
Mail doesn't send certificate-signed message
Symptoms When attempting to send a message in Mail that has been signed by a trusted certificate, a message appear that states: "Unable to sign message You don't have a trusted certificate in your keychain that matches the email address (sender's em
-
I have recently installed Photo Elements 13.When I create slideshow, upon saving it I am instructed that I will find it in "media, today's date" Where on earth has it gone and how, when, or where do I retrieve it?
-
IWeb won't publish pictures in sRGB
Hi all, Got iWeb 09 and running it on latest OS on MacBook Pro. Here is the problem - no mater what options i choose - it publishes pictures in some other profile other than sRGB. The problem is that when viewed in anything other than Safari - pictur
-
Hi Friends, What is the difference between Classic G/L and New G/L. Will assign the points. Best regards SAP
-
Create automatically PO from SO for commission agent
Hi gurus, I have to manage commission agent in SD. I create agent as client and I insert this information in SO throw Partner Function I calculate commission for agent throw pricing condition (statistical) Can I link these information to create an au