Why processAction of my ActionListener not execute??

hello all:
i put a command_button on my form ,and the actionevent is processed by myactionlistener,here is myactionlistener.java:
public PhaseId getPhaseId() {
return PhaseId.UPDATE_MODEL_VALUES;
public void processAction(ActionEvent event) {
if i set the return value of getPhaseId() to ANY_PHASE,APPLY_REQUEST_VALUES,PROCESS_VALIDATIONS ,it is ok,but if return value is UPDATE_MODEL_VALUES,RECONSTITUTE_REQUEST,and the processAction() will not be executed,why??

I encountered a similar problem. My problem is caused by a trivial CSS link:
<link rel="stylesheet" type="text/css" href='<c:url value="stylesheet.css"/>'>
The above generates the href as /<context path>/faces/stylesheet.css,
which triggers the FacesServlet to react. For some reason, it messes up the
action event flow and thus no processAction() is called in ActionListener.
The solution is to use
<link rel="stylesheet" type="text/css" href='<c:url value="/stylesheet.css"/>'>
Notice that there is a "/" preceding the css file. Thus, the href is
/<context path>/stylesheet.css, which is more appropriate.
So, it applies to other links such as javascript, css, and images.

Similar Messages

ActionListener not executed

Something really strange happens to my jspx.
I set actionListener of a button to point a particular method in a managed bean. That method does nothing but prints out a message. What seems to be happening instead is Commit action being executed.
What could be causing this? I'm really stuck

When you click a button on a form, a Submit event is generated (as Frank indicated). Is that what is happening, or is your original posting indicating a "Commit" correct?
How is your actionlistener configured? I'm assuming you've already put a breakpoint in the target method to guarantee it's not being called? Have you turned on logging to see if anything is getting consumed on the event?
Regards,
Shaun O'Brien
Edited by: Shaun OBrien on Sep 30, 2008 1:54 PM

Why is my deployed application not executing functions from an external .dll?

My application executes python scripts via function calls made to the python C/API, python24.dll. It works fine in the development environment, but my deployed application does not seem to find the .dll since the the application crashes at what seems to be the first attempt to access the python shared library.
I believe I've included all the necessary support files. LV automatically included python24.dll into the installer. And I've tried to make all the paths to script files and other support files point to where the app.exe is located...some debugging windows have shown the paths to be correct in the deployed app. The call library function nodes are configured to find the python .dll in the win\system32 folder.
I feel like I'm missing some step in the build process since it works in the development environment, but perhaps there is some other trick using CLFN's that I don't understand.
I using LV7.
Thanks.

Hello CraigerB,
It seems like you are doing everything the right way. Click on the following link for a related discussion forum post.
Here is what you can try:
1. Place the dll in the C:\WINDOWS\system32 on your development machine.
2. Make sure your Call Library Function Node VI is pointing to C:\WINDOWS\system32\python24.dll
3. Build your executable
4. LabVIEW will not make a copy of your python24.dll because it will treat it differently
5. Manually copy the python24.dll to the target PC's C:\WINDOWS\system32\
6. Make sure you have all supporting files for your python24.dll to insure the dll itself is working.
7. If you are using relative paths to call your dll, switch to hard paths, or take a look at this KB for relevent information.
Hope this helps!
Kalin T.
National Instruments

Command On Source -Not Executing

Hi
In a CKM, I am creating a bind variable by ruuning the SQL on 'Command on Source' tab and using it as a bind variable in 'Command on Target' tab, but when I execute the interface I see only 'Command on Target' is getting executed and 'Command on Source' is not.
I am getting a value in Command on Source tab and using it as a Table Name in the 'from' clause on the 'Command on Target'
regards

Any clue why Command on Source is not executing?

Custom Code not Executing

We implemented SAP 3/1/2010 and have had 3 separate custom programs that have behaved in this same manner. Here is what happens.
1. User runs tcode per usual business process
2. Custom program results are not created. In other words, it appears that the custom program does not execute because the results of the custom program are not created.
3. Rerun same tcode with debug stopper
    a) If the user puts a "debug stopper" in the custom program
    b) the custom code is executed
    c) custom code functions as expected and results are displayed properly
4. remove the stopper
5. Execute tcode and it works properly
So, the custom program is active and is executed (when stopper is there) and functions as expected. However, it does not ALWAYS execute the code (or so it seems from the results that are displayed)
Another work around that we have discovered.
1. User executes tcode and discovers the custom program did not produce expected results
2. User logs off of SAP
3. Logs back on and executes tcode
4. custom program expected results are displayed.
As I said at the beginning, we have experienced this with 3 different custom programs now. I have worked with our Basis team and have not found a solution as to why the custom programs are not executing "all the time".
PLEASE help!

Here are the answers to your questions. Thanks for the quick response.
Custom program = It is code that is executed in a user exit, or is a stand alone program
The 3 different programs are all doing various things. 1) Passing parameters to vertex 2) very complex as it adds pricing conditions and updates forwarding agent partner 3) Stand alone program updates field in BSEG
No security objects are involved in any of the 3 programs.
Yes, this is in the production environment.
No, I have not tried in any other environment because we can not find a situation where the problem always occurs. In other words, I can not duplicate the problem "EVERY TIME" however, when a user encounters the problem it occurs all the time until they do one of our "work arounds" which is to log off SAP or to put a "degug stop" in the program.

Patches with pre and or post patch scripts not executable -- why?

In my frustration with update manager hangs I have had to kill processes and restart and even manually unjar files and patchadd. Sometimes I run across the error that the pre or post patch scripts are not executable. I have in the past chmod 744 and patchadd then applies the patch. This has happened several times in my latest patch update. I also had a patch ( X11) that implied a lack of entitlement but the manual patchadd showed that the real problem was a missing prerequisite patch.
My questions are:
1. is this lack of executable permission on scripts ( pre and post) by design and am I missing the correct procedure?
2. missing prerequisite scripts? why?
3. out of frustration --- IS THIS PATCHING UTILITY THE BEST THAT SUN CAN DO?

Update Manager is sometimes a little flaky, particularly on unpatched systems (as it uses many different utilities). I would suggest that if you are having problems then you should use smpatch instead - it's not really any more difficult to use and is often much quicker.
If a patch has a script that is not executable that is not a fault of updatemanager, but a fault with the patch itself (being archived with incorrect settings) or possibly your umask setting, which should ideally be globaly set to 0022 prior to patching to prevent problems during extraction and application.
If updatemanager has complained about a lack of entitlement I would tend to believe that this was the case, check the contents of your entitlement file:
# cat /var/sadm/spool/cache/entitlement/*entitlement_clientYou may be missing SolarisAllUpdates or other entitlements - please post the output.
Sun do offer other patching tools, but what is best for one person/company may not be the best for all. There is also the possibility that you don't have it setup correctly - I would ask that you run the attached script and upload the output file generated to our [Support Uploads|http://supportuploads.sun.com/] site.

Why is the second update in trigger not executing

Hi all I'm just starting with pl/sql . My trigger works but the second update does not execute.
why is it not executing? and how can I get it to execute?
CREATE OR REPLACE TRIGGER bb_ordercancel_trg
AFTER UPDATE OF idstatus ON bb_basketstatus
FOR EACH ROW
WHEN( new.idstage = 4)
DECLARE
CURSOR basketitem_cur is
SELECT idproduct,quantity,option1
from bb_basketitem
where idbasket =:new.idbasket;
lv_chg_num NUMBER(3,1);
BEGIN
FOR basketitem_rec in basketitem_cur LOOP
IF basketitem_rec.option1 =1 then
lv_chg_num := (.5*basketitem_rec.quantity);
ELSE
lv_chg_num := basketitem_rec.quantity;
END IF;
update bb_product
set stock= stock - lv_chg_num
where idproduct = basketitem_rec.idproduct;
update bb_basket
set orderplaced = NULL
where idbasket = :new.idbasket;
END LOOP;
END;

I retract that and with the modified code it works .
thanks guys, I should have drank a little more coffee when I started this ;-)
CREATE OR REPLACE TRIGGER bb_ordcancel_trg
AFTER INSERT ON bb_basketstatus
FOR EACH ROW
WHEN( new.idstage = 4)
DECLARE
CURSOR basketitem_cur is
SELECT idproduct,quantity,option1
from bb_basketitem
where idbasket =:new.idbasket;
lv_chg_num NUMBER(3,1);
BEGIN
FOR basketitem_rec in basketitem_cur LOOP
IF basketitem_rec.option1 =1 then
lv_chg_num := (.5*basketitem_rec.quantity);
ELSE
lv_chg_num := basketitem_rec.quantity;
END IF;
update bb_product
set stock= stock - lv_chg_num
where idproduct = basketitem_rec.idproduct;
update bb_basket
set orderplaced = 0
where idbasket = :new.idbasket;
END LOOP;
END;
Edited by: user8690163 on Dec 8, 2009 12:57 PM

Af:commandMenuItem action and actionListener are not executing

Hello all!
I use JDeveloper Studio Edition Version 11.1.1.2.0. Here's the problem. I have a popup menu like this
<af:popup id="someMenu" animate="default">
<af:menu id="pt_m1">
<af:forEach var="item" items="#{ContextMenuHelperBean.availableUserRoles}">
<af:commandMenuItem text="#{item.roleName}"
action="#{ContextMenuHelperBean.changeUserRole_Action}"
actionListener="#{ContextMenuHelperBean.changeUserRole_ActionListener}"
immediate="true"
partialSubmit="false"
id="pt_cmi1" rendered="true">
<f:attribute name="userRole" value="#{item}"/>
</af:commandMenuItem>
</af:forEach>
</af:menu>
</af:popup>
The problem is that action and actionListener are not executing, when the menu item is selected (but the page is reloaded with no changes). ContextMenuHelperBean has a "session" scope set in adfc-config.xml. What can be wrong with this?

Now I've encountered a new kind of error. I create a menu in a managed bean like this:
In JSPX
<f:view beforePhase="#{RolesMenuSupportBean.createMenus}">
<af:popup id="cxtMenu" animate="default">
 <af:menu id="pt_m1"
 binding="#{RolesMenuSupportBean.rolesMenu}">
 </af:menu>
 </af:popup>In com\cs\webb2\view\utils\menu\RolesMenuSupport.java
 public void createMenus(PhaseEvent phaseEvent) {
 List<IUserRole> rolesList = getAvailableUserRoles();
 for (IUserRole role: rolesList) {
 Boolean hasItem = false;
 for (Iterator iter = rolesMenu.getChildren().iterator(); iter.hasNext(); ) {
 RichCommandMenuItem item = (RichCommandMenuItem) iter.next();
 if (!hasItem)
 hasItem = item.getText().equalsIgnoreCase(role.getRoleName());
 if (!hasItem) {
 RichCommandMenuItem newItem = new RichCommandMenuItem();
 newItem.getAttributes().put("userRole", role);
 newItem.setText(role.getRoleName());
 newItem.setId(ITEM_ID);
 newItem.setActionExpression(getActionExpression("#{RolesMenuSupportBean.changeUserRole_Action}"));
 newItem.addActionListener(getExpressionActionListener("#{RolesMenuSupportBean.changeUserRole_ActionListener}"));
 rolesMenu.getChildren().add(newItem);
 } The menu is created successfully, but when I click on any item, I get an exception
javax.servlet.ServletException: Method not found: com.cs.webb2.view.utils.menu.RolesMenuSupport@d4702.changeUserRole_Action(void)
But of course I have such a method in my com.cs.webb2.view.utils.menu.RolesMenuSupport:
In com\cs\webb2\view\utils\menu\RolesMenuSupport.java
 public String changeUserRole_Action()
 System.out.println("Action!");
 // no code yet
 return "adfMenu_Main";
 }And there is a managed bean named RolesMenuSupportBean, which is associated with class com.cs.webb2.view.utils.menu.RolesMenuSupport.
Can anyone tell me, what can be wrong?

Why is VI not executable using Labview 7.1 Run-Time Engine?

Hi,
In our Teststand sequence, we have a Labview Action step which is returning an error: "The VI is not executable", along with the error code: -18002.
This error occurs on a Production PC using the L.V. 7.1 Run-Time Engine.
I'm aware of Mass Compiling to ensure all the VI's are the correct version, but this has not resolved the problem.
The software was installed on the production PC using a Teststand created installer, with the Labview Adapter set
correctly to the Run-Time Engine, i.e. not trying to open the Labview Developer Server to execute the step at run time.
Because it's the 1st Labview module to be executed, I added another similar step to run beforehand, i.e. the new simple
Labview code ran first. This executed correctly, but then the next step caused the error above.
The small number of associated sub-vi's are on the target PC, and have been mass compiled.
I've had -18002 errors before, but this is one I cannot cure.
All suggestions gratefully received.
Gary.

Hi Guys,
Regarding this -18002 error when using the Run Time Engine instead of the Development Environment, what is the VI within the step that is failing (in any of the cases you've mentioned) trying to do? Are they built around any toolkits?
In my experiments with a simple VI (with just a user dialogue) using the LabVIEW 7.1 RTE in both TestStand 3.1 and 3.5 this morning, I haven't found any issues
There is a possibility if any of the sub-VIs or toolkits you use contain a Merge Errors.vi, that the Run Time Engine picks up a copy of the VI built for previous versions of the RunTime Engine (due to the order in which the sub-VI directories are scanned), and it cannot convert it.
There are a few solutions for this, the easiest one looks to be to copy the error.llb\Merge Errors.vi for LabVIEW 7.1 into the same directory as the VI you're calling (so TestStand can pick it up easily).
Can you let me know if this solution helps at all? If not, would it be possible to post up any of the code or sequence you're having problems with?
Best wishes,
Mark
Applications Engineer
National Instruments

Network Configuration requirements not executed, why?

During installation all checks are passed but this one, is there any particular reason for this check not to be executed? Should I worry over it not beein executed?
Checking Network Configuration requirements ...
Check complete. The overall result of this check is: Not executed <<<<
Recommendation: Oracle supports installations on systems with DHCP-assigned public IP addresses. However, the primary network interface on the system should be configured with a static IP address in order for the Oracle Software to function properly. See the Installation Guide for more details on installing the software on systems configured with DHCP.
I'm trying to install Oracle 10g 2 on a Red Hat 4 server with a static IP.

Hi!
Either your machine is setup to use DHCP after all or the installer just has trouble to find the correct information.
Recheck the network settings of your machine (redhat-config-network).
Just ignore the warning and continue.
cu
Andreas

Developing site to use external javascript files for server access. my ain.js file just displays and does not execute. Why?

My ain.js file is meant to work on and access server files for tracking all visitors to the site I am developing.
One way to access it, in my plan, is to use index.htm. when I open index.htm it displays correctly and presents a link to ain.js with a query line (?a=zzzzz--e2).
The entire file is displayed; but not executed.
Short of building my own server (prior to publishing what I am developing) how do you propose I test what I have written?
As a retiree, I have limited funds (the purpose of developing a website is meant to coorect that).

This forum is for Firefox user support, very few of our contributors are developers.
Try posting at the Web Development / Standards Evangelism forum at MozillaZine. The helpers over there are more knowledgeable about web page development issues with Firefox. 
http://forums.mozillazine.org/viewforum.php?f=25 
You'll need to register and login to be able to post in that forum.

For Loop Will Not Execute

I have been a software engineer for a number of years now, and thus far I have never come across any coding issues that truly merit a post such as this. Someone has almost always run across the issue before, so there is no need to reinvent the wheel, or solution as it were.
However, a number of times I have run across instances where the JRE simply... does not execute parts of my code, and throws no exceptions.
The sample code is a simple logging application, watered down to the bare minimum for the purposes of this forum:
public class Log {
public static void main(String[] args) {Log log = new Log();}
public Log() {Logger.log("Hello World");}
import java.util.*;*
import java.io.*;
import java.text.SimpleDateFormat;
public abstract class Logger {
private static final int SIZE = 2;
private static final SimpleDateFormat DAY = new SimpleDateFormat("EEEE");
private static final String
DIR = "logs/",
EXT = ".log",
FILTER = ".*log\\z",
DNE = "DNE";
private static int i,oldest;
private static long previous = 0;
private static FileFilter filter = new LogFilter();
private static FileWriter out;
private static File file,directory;
private static File[] list;
public synchronized static void log(String param) {
try {
 directory = new File(DIR);
 file = new File(DIR + getDay() + EXT);
 list = directory.listFiles(filter);
 if (file.createNewFile()) {
 readOnly();
 reconcile();
 write(param);
catch (Exception exception) {}
private static void write(String param) throws Exception {
out = new FileWriter(file, true);
out.write(param);
out.close();
private static void readOnly() throws Exception {
for (i=0;i<list.length;i++) {list.setReadOnly();}
private static void reconcile() {
try {
previous = list[SIZE].lastModified();
oldest = SIZE;
for (i=SIZE;i<=0;i--) {
if (list[i].lastModified() <= previous) {
previous = list[i].lastModified();
oldest = i;
list[oldest].delete();
catch (Exception exception) {System.out.println("Skipping reconciliation...");}
private static String getDay() throws Exception {
return DAY.format(Calendar.getInstance().getTime());
private static class LogFilter implements FileFilter {
public LogFilter() {}
public boolean accept(File param) {
try {
if ((param.getName()).matches(FILTER)) {return true;}
else {return false;}
catch (Exception exception) {return false;}
*The problem*:
Ok, easy visual, this is the "log/" directory as I run the Log.java application repeatedly and iterate the date on my computer as I do so.
Thursday
*log/*
+Thursday.log+
Friday
*log/*
+Thursday.log+
+Friday.log+
Saturday
*log/*
+Thursday.log+
+Friday.log+
+Saturday.log+
Sunday
*log/*
+Friday.log+
+Saturday.log+
+Sunday.log+
Monday
*log/*
+Friday.log+
+Saturday.log+
+Monday.log+
This is the point at which I go ???
Turns out, the JRE skips the execution of my for loop in the *reconcile()* method when the date rolls over to Monday, and from then on it simply deletes the previous day's log instead of the oldest log.
Why? Who knows.
Things I have tried:
- Using another variable integer for the *readOnly()* method
- Removing the synchronized keyword from the *log(String param)* method
- Second call to *directory.listFiles(filter)* and setting *SIZE* to *3* after the old files have been set to read-only
- Removing the call to *readOnly()*
- Verified that the call to *readOnly()* does not alter the +modified+ date on the log files
- Changed Logger.java from a +static+ class to a +local+ class
Things I cannot do:
This log application stores privy information about end-users at locations across the country in the event that there are support issues that need to be resolved, and the agreement is that we store this information no more than three days. Just wanted to make sure, that the hopefully informed respondants to this issue, know that the obvious solution (storing seven day records), is unfortunately not available to me.
Edited by: Threadstorm on Jan 8, 2009 8:24 AM

HA! Most excellent. The last place I would ever look.
Yes, seems like Java sorts the files in such a way that everything works fine without the loop until Monday rolls over.
Now I can have a better appreciation for that second set of eyes.
I use for loops so frequently that I never look at them (though I did stare at this one myself prior to this post, much to my chagrin now) but the subtracting iteration (which I use once in a blue moon) was necessary for the nature of the code.
But ok, up and running! (whew) was going to be a long day until now.
To answer your question though, the Logger is static so I don't have to pass it around to dozens and dozens of other modules but rather just include the package on the fly as I develop new modules that need to log information, and I like to write most mundane things myself if I can, that way I have the freedom to modify them at will.
Thanks again! I'm now a happy camper once more.
I'm also thankful that I don't have to chalk up another notch on the wall of cases where the JRE behaves magically and truly ignores code which I have definitely run into before. Something about listCellRenderers and the order of calls made to them, or some such and JRE doesn't read one of the lines. It's been a year or two.
Edited by: Threadstorm on Jan 8, 2009 8:47 AM

Why is my BDC_CURSOR command not working to position the cursor?

Why is my BDC_CURSOR command not working to position the cursor? Here are the details regarding my issue.
I am writing a BDC to mass delete routing material assignments using transaction CA02. I am OK to navigate through the initial screen to go to the Header screen and from here I am OK to navigate to the Material Assignments screen. But once here, I cannot get the BDC_CURSOR command to take me into the list. Here are the commands I am using. Please let me know what I may try differently.
CA02 Material Assignment - Set position <-- this resets list of materials to correct position
PERFORM bdc_dynpro USING 'SAPLCZDI' '1010'.
PERFORM bdc_field USING 'BDC_CURSOR' 'RC27X-ENTRY_ACT'.
PERFORM bdc_field USING 'BDC_OKCODE' '=ENT1'.
PERFORM bdc_field USING 'RC27X-ENTRY_ACT' c_position.
CA02 Material Assignment - Delete
PERFORM bdc_dynpro USING 'SAPLCZDI' '1010'.
PERFORM bdc_field USING 'BDC_CURSOR' 'MAPL-MATNR(01)'. <-- this is not working to set the cursor into the list
PERFORM bdc_field USING 'BDC_OKCODE' '=LOE'. " trash can
PERFORM bdc_field USING 'RC27X-ENTRY_ACT' c_position.
CA02 Material Assignment - Green Check OK
PERFORM bdc_dynpro USING 'SAPLCZDI' '1010'.
PERFORM bdc_field USING 'BDC_CURSOR' 'RC27X-ENTRY_ACT'.
PERFORM bdc_field USING 'BDC_OKCODE' '=BACK'. " check mark
PERFORM bdc_field USING 'RC27X-ENTRY_ACT' c_position.

Thank you for your reply.
I had used SM35 to record. However, I was not aware of the "create program" feature. I had commented out a section from my previous post which I have now added back (latest code below). But it still did not resolve the issue.
When I execute with dismode = 'N', I get back error message "No batch input data for screen SAPLCZDI 1010".
When I execute with dismode = 'E' (only show dynpros when error), it stops at the material selection screen without placing my cursor in the list. I can then MANUALLY click to set the cursor position in the list, MANUALLY click the trashcan, it then uses my BDC command to respond to the popup asking "Do you want to delete", still leaving me at the material selection screen. I can then MANUALLY click the green check (or enter), then it continues with the BDC to go back to the previous screen, and saves. But it still will not place my cursor in the material selection list (SAPLCZDI screen 1010).
Here is code used. It is the second section of code labeled "CA02 Material Assignment - Delete" that is not working.
CA02 Material Assignment - Set position
this code functions to position the desired material to first in screen list
PERFORM bdc_dynpro USING 'SAPLCZDI' '1010'.
PERFORM bdc_field USING 'BDC_CURSOR'
 'RC27X-ENTRY_ACT'.
PERFORM bdc_field USING 'BDC_OKCODE'
 '=ENT1'.
PERFORM bdc_field USING 'RC27X-ENTRY_ACT'
 c_position.
CA02 Material Assignment - Delete
PERFORM bdc_dynpro USING 'SAPLCZDI' '1010'.
PERFORM bdc_field USING 'BDC_CURSOR'
 'MAPL-MATNR(01)'.
PERFORM bdc_field USING 'BDC_OKCODE'
 '=LOE'. " trash can
PERFORM bdc_field USING 'RC27X-ENTRY_ACT'
 c_position.
Acknowledge Pop-Up Screen
PERFORM bdc_dynpro USING 'SAPLSPO1' '0100'.
PERFORM bdc_field USING 'BDC_OKCODE'
 '=YES'.
CA02 Material Assignment - Green Check OK
PERFORM bdc_dynpro USING 'SAPLCZDI' '1010'.
PERFORM bdc_field USING 'BDC_CURSOR'
 'RC27X-ENTRY_ACT'.
PERFORM bdc_field USING 'BDC_OKCODE'
 '=BACK'. " check mark
PERFORM bdc_field USING 'RC27X-ENTRY_ACT'
 c_position.

Why JTextArea.select(int,int) not Highlight in java 1.4

Hi guys
Does anybody know why JTextArea.select(int, int) not Highlight the selected text in java 1.4. But java 1.3 works. Does java 1.4 change to use other method to hightlight the selected text in JTextArea? Thanks in advance.
Regards,
Mark.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class SelTest extends JPanel {
private JTextArea area;
public SelTest() {
    setLayout( new BorderLayout() );
    area = new JTextArea( "This is a sample text", 20, 20 );
    JButton btn = new JButton( "Select" );
    btn.addActionListener( new ActionListener(){
      public void actionPerformed( ActionEvent ae ){
        selectText2();
    add( area, BorderLayout.CENTER );
    add( btn, BorderLayout.SOUTH );
private void selectText2(){
    area.requestFocus(); // MOST IMPORTANT
    area.select( 1, 4 );
    System.out.println("selcted : " + area.getSelectedText() );
public static void main(String[] args) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
    f.getContentPane().add( new SelTest() );
    f.pack();
    f.setVisible( true );
}

Not executed method

Hi. I need some help. That's a snippet of the class.
public constructor ( ChooserListener callback ) { // that's a constructor
super();
Loader.load();
this.callback= callback;
JFrame frame = new JFrame();
frame.getContentPane();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(this);
frame.setSize(300,330);
frame.setVisible(true);
JPanel lectures = new JPanel();
String items [] ={BLANK,COMP,EIMC,MATH};
JList list = new JList(items);
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
list.addListSelectionListener( listSelectionListener);
lectures.add(list);
ListSelectionListener listSelectionListener = new ListSelectionListener() {
public void valueChanged (ListSelectionEvent e)
{ // System.out.println( listSelectionListener);
System.out.println("Hooray");
if (e.getValueIsAdjusting()== false)
// tell(dept[deptList.getSelectedIndex()]);
tell(COMP);
} // the end of class
I can't understand why System.out.println("Hooray"); is not executed. Why execution bypasses that 'valueChanged' method. What's the problem?
Cheers

mvezelis wrote:
What do you mean, use code tags? I am new here.When you make your post, you'll see some formatting options above the text input box.
When you post code, highlight it, and then click the button that says "CODE".
That way your code will be legible.
What do you mean, I change the list?I don't know what he was referring to, but I don't see any place where you actually add the listSelectionListener to anything. If that's the case then the code in question would never get executed. Do you understand why?

Why processAction of my ActionListener not execute??

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