Problem with initialization of VM
Hi!
I just installed a new version of JSDK(1.4.1)
And what I do a "java -version" I got the followin error"
Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object
I'm using solaris 8 on sparc
Any idea why I get this error?
thanks in advance,
-eduardo s.m.
I had exactly the same problem and I'd like to thank
you for the post stating 32 bit JVM must be
downloaded first in other to make the 64 bit one
work!! I spend 3 entire days figuring this one out.
I guess it would be a really amazing and complex task
for a company such as Sun Microsystems (tm) to place
a note in the download page with an indication.Do you really think after about 2 and a half years later that they're even watching this to see your note?
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Problem with initialization environment files
I'm trying to get a .profile file to work in my login environment, but it just doesn't want to cooperate. I get errors on just about everything. In fact, the only thing I've been able to get to work is the echo command. It doesn't matter whether or not I use fully qualified paths for the commands or not. Here's a short list of some of the problems.
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Here are the steps I used to initially get my environment files over to the Mac.
1. Created a tar file on a linux platform with my pre-existing environment files.
2. Tar file was compressed with gzip.
3. Compressed tar file was then burned to CD.
4. CD loaded onto a Windows platform.
5. From Windows platform, tried to email tar file to myself but it was too big to send.
6. From Windows used WinZip to uncompress and open the tar file.
7. Extracted the contents to a folder.
8. Removed unnecessary files from folder to make result smaller. Also split contents of folder into multiple folders.
9. Used WinZip to zip new folders containing necessary files into multiple zip files.
10. Emailed zipped files to my home email account.
11. Opened email from Mac and downloaded zip files.
12. From a terminal window unzipped files using /usr/bin/unzip.
13. Copied environment files to home directory with a cp –pr command.
14. Disabled all environment files (by adding different file extensions) so I could begin experimenting with what I needed to change.
15. Started with the .profile file by commenting out most of the file and leaving just a few commands. This is when my problems began. BTW, I used xemacs to edit the file. Xemacs was download and installed via Macports a while back in preparation for creating a development environment for myself. Getting my login environment going was my next step in the process.
16. Since I couldn't get it to work, I then put nothing but some simple shell commands in the .profile to see what would happen. Commands like pwd, ls, and echo. And as I explained in the original post, the only thing that worked was the echo command.
Looking at the preceding steps, the files were never opened on the Windows platform… is it possible that the WinZip steps caused <CR><LF> characters to appear somehow? Or, is it possible that xemacs messed up my file? I use emacs and xemacs all the time on linux and solaris systems with no such problems. Actually, at one point in my messing with the .profile file, in frustration, I decided to open it with vi. I hate vi, but know just enough to be dangerous. What I did was to remove a blank line (remember, blank lines are generating errors too) and insert another one. I figured vi is about as basic and primitive an editor as you can get. So, if any funny control characters are present, that should at least alleviate the problem. Unfortunately, even that still generated the same error.
Have you tried a simplified .profile?
Yes. See #16 above.
Do you have more than one shell initialization file. Bash will look for
.bash_profile
.bash_login
.profile
in that order and use the first one it finds, then stop looking. If you any of the 2 earlier initialization files, bash will not bother looking at your .profile
No, I do not have more than one initialization file... at the moment. And yes, I know what bash looks for, and in what order. At the moment I am only using a .profile just to see if I can get things working. See #14 and #15 above.
I am assuming your shell is 'bash', the current Mac OS X default, however, if you started using Macs back in the Jaguar days, and have just been upgrading, then you shell might be tcsh, which would not even look at .profile, and trying to run it interactively would generate strange results when interpreted by tcsh.
And of course, it is always possible you intentionally changed your shell. If you did that would be useful information. I suspect you did not, but I figured I would ask.
Yes, I'm using the bash shell. $SHELL returns /bin/bash, and $0 returns -bash.
If your lines end in ^M, then your .profile has been DOS'ified.
Ok, I did the cat command you've suggested. BTW, thanks for the options on the cat command. I didn’t realize cat had options to show special characters. I’ve used it for years and never really looked at the man page on it. I believe there is also a way to see control characters within xemacs, but I can’t remember how to do that.
Anyway, the file is definitely showing ^M characters. My first question is, is ^M the same as <CR><LF>? The reason I ask is it may have been xemacs that put those there, or they may have already been there from the files I transferred from the linux platform. I'm pretty sure xemacs uses ^M's because whatever mode I was able to put xemacs in in the past to see control characters, I'm about 99% sure I've seen all lines ending in that. Of course, that brings me to my next question. If that's true, why do these files work on linux and solaris platforms and not OS X? Like I said, I do most of my editing with xemacs, and I know the environment files were originally created on the other platforms using xemacs.
If you have any ideas on these questions, please enlighten me. In the mean time, I'll play around with trying to get rid of the ^M's to see what happens. Not sure how I'm going to do that though since I'm not that familiar with a lot of other editors, so I wouldn't know how to load the files and remove the invisible ^M characters. I also really do not want to hand type in all my environment files if this turns out to be the problem. And if I use xemacs to perform the editing, then it'll just save the file with ^M's anyway.
Thanks for your help. -
Hi experts,
I am working on an ADF application which was created in year 2000/2001.
I have to make it runnable in the latest Weblogic server. Am using JDeveloper Studio 11.1.1.4.0
Most of the oracle jbo classes have been changed, so am facing a bit difficulty in migrating the application.
My current problem is, I have a class that extends oracle.jbo.html.databeans.RowSetBrowser. In it, data is accessed by the code
oracle.jbo.Row rows[] = super.getRowSet().getAllRowsInRange();
the code is running and i am getting an array with size equal to the number of rows in database table. but on
iterating the array,
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I am not much experienced in ADF, and finds this hard to solve.
Please someone help me to resolve this.
Thank you,
Deepa.
Edited by: 859210 on May 16, 2011 8:44 PM
Edited by: 859210 on May 20, 2011 3:29 AMHi Timo,
Thank you for responding.
We have used jbo tags in this project.
the jsp code is:
<jsp:useBean id="RowViewer" class="SVR_html.MyRowSetBrowser" scope="request">
<%
RowViewer.initialize(pageContext, con.getDataSourceId() + ".tabParameter");
RowViewer.setReleaseApplicationResources(true);
RowViewer.render();
%>
</jsp:useBean>
where con is a connection object which is an instance of a class that extends oracle.jbo.html.WebBeanImpl
MyRowSetBrowser extends oracle.jbo.html.databeans.RowSetBrowser
Here is the code in MyRowSetBrowser.java (render() method):
AttributeDef aattributedef[] = getDisplayAttributeDefs();
oracle.jbo.Row rows[] = super.getRowSet().getAllRowsInRange();
System.out.println(rows.length); // prints 2
for (int n = 0; n< rows.length;n++)
for (int i = 0; i < aattributedef.length; i++)
Object obj = rows[n].getAttribute(i); // gives null
if(obj!=null){ // fails here
We are showing a table with values from db. Here, aattributedef[] has a length 2 and rows[] also shows length 2.
But i am not able to get the values. The result is, in the browser, it draws an empty table with rows = number of rows in db.
Thank you,
Deepa.
Edited by: 859210 on May 23, 2011 4:55 AM
Edited by: 859210 on May 23, 2011 4:57 AM -
I suddenly encounter this error message from Fire Fox.
Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory. Please check that this directory has no read/write restrictions and your hard disk is not full or close to full. It is recommended that you exit the application and fix the problem. If you continue to use this session, you might see incorrect application behaviour when accessing security features.
I uninstalled the browser and download a new version but it does not resolve the issue.
I know my hard disc has ample space. I do NOT know where to find the Profile directory to fix the read restriction box.
== This happened ==
Every time Firefox opened
== After something about security add-on of Norton pop up by itself. ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; MSN Optimized;US)This link shows things to check - https://support.mozilla.com/kb/Could+not+initialize+the+browser+security+component
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New Windows 7 computer. After installing Firefox, every time I bring it up I get the following message:
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Ubuntu 11.04: I have been getting this message whenever I install Firefox from the repositories and downloading the tar file. I cannot use Firefox! " There is no Profile folder Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory. Please check that this directory has no read/write restrictions and your hard disk is not full or close to full. It is recommended that you exit the application and fix the problem. If you continue to use this session, you might see incorrect application behaviour when accessing security features."Firefox does not respond to any addresses or a google search. Indeed it responds to nothing. There is no Profile folder!
Uninstalling Firefox on Linux
* http://kb.mozillazine.org/Uninstalling_Firefox#On_Linux
* http://kb.mozillazine.org/Installation_directory#Linux
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After all is done, Restart your system.
Installing Firefox on Linux
* https://support.mozilla.com/en-US/kb/Installing%20Firefox%20on%20Linux
Check and tell if its working. -
When I open the application the following alert appears: "Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory." There is a solution on the support site but only for Windows-based Firefox, and I'm a Mac user. I have plenty of room on my hard disk.
== This happened ==
Every time Firefox opened
== Two days ago, for no apparent reason.In Mac OS X v10.7, the $HOME/Library folder is a hidden folder.
Open Finder and use one of these:
* Go > Go To Folder (Shift-Command-G) and in the dialog type: ~/Library
* Open the "Go" menu and hold down the Option key to make the Library appear
You can also use this command in a Terminal window to remove the hidden flag.
* Mac HD > Applications > Utilities > Terminal
* chflags nohidden ~/Library -
Simple problem with a list initialization.
hello ! i have a class Contact and i would like to make a list of lists of Contact variables .. but when i try to run my code , it says "IndexOutOfBoundsException: Index: 0, Size: 0" . I know that every list of the list must be initialized .. but i don't know how .
here is the declaration of the List
static List<List<Contact>> lolContact=new ArrayList<List<Contact>>();and i know that i should do something like :
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and i know that i should do something like :
lolContact.get(0)=new ArrayList<Contact>();
Couple of problems with that.
1. You can never do methodCall() = something in Java. The result of a method call is not an L-value.
2. You're trying to assign a ContactList to a Contact variable. Basically, you're trying to do
Contact c = new ArrayList<Contact>();3. Even if you changed it to
Contact c = lolContact.get(0);
c = new Contact();it would not put anything into the list. That would just copy the first reference in the list and stick it into variable c, so that both c and the first list item point to the same object (remember, the list contains references, not objects--no object or data structure ever contains an object in Java), and then assigns a completely different reference to c, forgetting about the one to the object pointed to by the list. It would not affect the list in any way.
4. You can't do get(0) until you've first put something into the list. -
Problem with public folder initialization on exchange load generator 2010
hi,
we need to make some stress charge for a migration between 2010 and 2013. Before that we need to populate our exchange 2010 lab with full mailbox and public folders. So we tried Exchange load generator 2010 for this task ( initialization only).
Loadgen did well for the mailbox but we have some problems with the public folders. we have an empty public folder database and the user we run loadgen with has organization admin and public folder management right. the problem is that when we run this command
(for initializing public folder only, mailbox's done) :
loadgencmd.exe /p /c config.xml /add trace.log
IT create only one public folder with the user we run loadgen with, and 5-8 objects inside. We need that It create a public folder for each users it created before. Maybe we do not understand loadgen
correctly...I found my solution :
customize the <PublicStoreProfile> section in the configuration file as follows:
<PublicStoreProfile>
<MessageFiles />
<TopLevelFolderCount>1</TopLevelFolderCount>
<NonTopLevelFolderCount>1</NonTopLevelFolderCount>
<MinimumFolderDepth>1</MinimumFolderDepth>
<AverageFolderDepth>2</AverageFolderDepth>
<MaximumFolderDepth>3</MaximumFolderDepth>
<MinimumMessageCount>5</MinimumMessageCount>
<AverageMessageCount>10</AverageMessageCount>
<MaximumMessageCount>15</MaximumMessageCount>
<UseOrdinalFolderName>false</UseOrdinalFolderName>
</PublicStoreProfile>
Simply put differents values for each variables. -
Satellite P775-100 3D: Problem with first initialization of the 3D function
Hi,
I have a problem with my new Toshiba Satellite Notebook P775-100 3D.
Wenn I start the 3D wizard for the first 3D using, then disappears the mouse coursor from screen.
The mouse works but is not visible. Sometimes by trying can to find the button "continue" or a checkbox.
Unfortunately, I can not get the wizard with nonvisible mouse cursor until to the end.
The Keys e.g. TAB, Coursor-keys etc. from Keyboard helps not more.
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I have a problem with JDBC Realm in Tomcat/Oracle/Win XP
I have a problem with JDBC Realm in Tomcat.
I have attached my server.xml file located in the
C:\Program Files\Apache Software Foundation\Tomcat 5.5\conf\server.xml
The Problem is that when I login I get the user name and password prompt but it does not resolve.
When I enter in the tomcat-users.xml password with memory realm uncommented it works fine.
C:\Program Files\Apache Software Foundation\Tomcat 5.5\conf\tomcat-users.xml
Is there a cache or something I need to reset for the JDBC Realm to work?
I have attached my tables and contents as well...
Did I miss something????
Thanks
Phil
server.xml
<Server port="8005" shutdown="SHUTDOWN">
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
<Listener className="org.apache.catalina.storeconfig.StoreConfigLifecycleListener"/>
<!-- Global JNDI resources -->
<GlobalNamingResources>
<!-- Test entry for demonstration purposes -->
<Environment name="simpleValue" type="java.lang.Integer" value="30"/>
</GlobalNamingResources>
<!-- Define the Tomcat Stand-Alone Service -->
<Service name="Catalina">
<!-- Define a non-SSL HTTP/1.1 Connector on port 8080 -->
<Connector
port="8080" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" />
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3" />
<!-- Define the top level container in our container hierarchy -->
<Engine name="Catalina" defaultHost="localhost">
<!--
<Realm className="org.apache.catalina.realm.MemoryRealm" />
-->
<Realm className="org.apache.catalina.realm.JDBCRealm"
driverName="oracle.jdbc.driver.OracleDriver"
connectionURL="jdbc:oracle:thin:@localhost:1521:orcl"
connectionName="testName" connectionPassword="testPass"
userTable="users"
userNameCol="user_name"
userCredCol="user_pass"
userRoleTable="user_roles"
roleNameCol="role_name" />
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Note: XML Schema validation will not work with Xerces 2.2.
-->
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
</Host>
</Engine>
</Service>
</Server>
Tables
create table users
user_name varchar(15) not null primary key,
user_pass varchar(15) not null
create table roles
role_name varchar(15) not null primary key
create table user_roles
user_name varchar(15) not null,
role_name varchar(15) not null,
primary key( user_name, role_name )
select * from users;
----------------------+
| user_name | user_pass |
----------------------+
| tomcat | tomcat |
| user1 | tomcat |
| user2 | tomcat |
| user3 | tomcat |
----------------------+
select * from roles;
| role_name |
| tomcat |
| role1 |
select * from user_roles;
-----------------------+
| role_name | user_name |
-----------------------+
| tomcat | user1 |
| role1 | user2 |
| tomcat | tomcat |
| role1 | tomcat |
-----------------------+Jan 2, 2008 11:49:35 AM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Jan 2, 2008 11:49:35 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 734 ms
Jan 2, 2008 11:49:35 AM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Jan 2, 2008 11:49:35 AM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.9
Jan 2, 2008 11:49:35 AM org.apache.catalina.realm.JDBCRealm start
SEVERE: Exception opening database connection
java.sql.SQLException: oracle.jdbc.driver.OracleDriver
at org.apache.catalina.realm.JDBCRealm.open(JDBCRealm.java:684)
at org.apache.catalina.realm.JDBCRealm.start(JDBCRealm.java:758)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1004)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
at org.apache.catalina.core.StandardService.start(StandardService.java:450)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:683)
at org.apache.catalina.startup.Catalina.start(Catalina.java:537)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:271)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409)
Jan 2, 2008 11:49:35 AM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Jan 2, 2008 11:49:36 AM org.apache.catalina.core.StandardContext resourcesStart -
Hello everyone,
we got problems with starting OC4J_bi_forms component in AS control.
database: 10g R2 (10.2.0.1)
forms and reports: 10g (10.1.2.0.2.)
designer: 10g (10.1.2.0.2.)
1. we tried to start component in AS control but we get this error:
The following components were not started:
OC4J : home - time out while waiting for a managed process to start
OC4J : OC4J_BI_Forms - time out while waiting for a managed process to start
OC4J : OC4J_Portal - time out while waiting for a managed process to start
For more information, look at the logs using the related link below.
Related Link Error Logs
2. then we check the error file that describes problems with OID:
Error displaying Log Files page. Failed to initialize configuration management user session.. The OracleAS Repository API threw an exception when obtaining the connect string to the Metadata Repository
Resolution:
Check the exception thrown by the Repository API for resolution information.
Some common causes of this problem are as follows:
OID is not running or unavailable
the ias.properties file is misconfigured with incorrect OID connection information
OID permissions are incorrectly defined
Base Exception:
oracle.ias.repository.schema.SchemaException
Unable to establish connection to the Oracle Internet Directory Server ldap://server_xy:389/. Base Exception : javax.naming.CommunicationException: server_xy:389 [Root exception is java.net.ConnectException: Connection refused: connect]. Unable to establish connection to the Oracle Internet Directory Server ldap://server_xy:389/. Base Exception : javax.naming.CommunicationException: server_xy:389 [Root exception is java.net.ConnectException: Connection refused: connect]
3. we check the status with opmnctl status, all components are down
4. then we tried to start components manually with opmnctl stopall/startall
but the problem isn't solved.
Any help?hello Jacco,
thank you very much for your help, we are now able to start oc4j_bi_forms.
We follow your advice, at the end we had to change ODS password with oidpasswd to ias_admin password.
Now all components are started.
We now must solve only one problem:
All AS components are started, but when in Application Server Control we click link for
J2EE Applications we get this error:
An error was encountered while loading page. Failed to initialize configuration management user session.. The OracleAS Repository API threw an exception when obtaining the connect string to the Metadata Repository
Resolution:
Check the exception thrown by the Repository API for resolution information.
Some common causes of this problem are as follows:
OID is not running or unavailable
the ias.properties file is misconfigured with incorrect OID connection information
OID permissions are incorrectly defined
Base Exception:
oracle.ias.repository.schema.SchemaException
Unable to establish connection to the Oracle Internet Directory Server ldap://server_xy:389/. Base Exception : javax.naming.AuthenticationException: [LDAP: error code 49 - Invalid Credentials]. Unable to establish connection to the Oracle Internet Directory Server ldap://server_xy:389/. Base Exception : javax.naming.AuthenticationException: [LDAP: error code 49 - Invalid Credentials]
Thanks for your help one more time. -
Can some one help me with this problem with my frame???
i have gt a veri strange problem with my program,that is teh graphic changes only when i resize the the frame,if i dun resize,it will remain the same.However what i intended is that when i click on the radio button,it will change immediately to the respective pages.A simple version of my code is below,can someone helpl me solve it??(there is 3 different class)
import java.awt.event.*;
import javax.swing.*;
public class MainPg extends JFrame implements ActionListener{
private javax.swing.JPanel jContentPane = null;
private javax.swing.JPanel buttons = null;
private javax.swing.JRadioButton one = null;
private javax.swing.JRadioButton two = null;
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public MainPg() {
super();
initialize();
private void initialize() {
this.setSize(300, 200);
this.setContentPane(getJContentPane());
this.setName("mainClass");
this.setVisible(true);
private javax.swing.JPanel getJContentPane() {
if (jContentPane == null) {
jContentPane = new javax.swing.JPanel();
jContentPane.setLayout(new java.awt.BorderLayout());
jContentPane.add(getButtons(), java.awt.BorderLayout.WEST);
jContentPane.add(getChange(), java.awt.BorderLayout.CENTER);
return jContentPane;
private javax.swing.JPanel getButtons() {
if(buttons == null) {
buttons = new javax.swing.JPanel();
java.awt.GridLayout layGridLayout1 = new java.awt.GridLayout();
layGridLayout1.setRows(2);
layGridLayout1.setColumns(1);
ButtonGroup group=new ButtonGroup();
group.add(getOne());
group.add(getTwo());
buttons.setLayout(layGridLayout1);
buttons.add(getOne(), null);
buttons.add(getTwo(), null);
return buttons;
private javax.swing.JRadioButton getOne() {
if(one == null) {
one = new javax.swing.JRadioButton();
one.setText("One");
one.setSelected(true);
one.addActionListener(this);
one.setActionCommand("one");
return one;
private javax.swing.JRadioButton getTwo() {
if(two == null) {
two = new javax.swing.JRadioButton();
two.setText("Two");
two.addActionListener(this);
two.setActionCommand("two");
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if(change == null) {
change = new javax.swing.JPanel();
change.add(new One());
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public static void main(String[] args){
new MainPg();
public void actionPerformed(ActionEvent e) {
change.removeAll();
if("one".equals(e.getActionCommand())){
change.add(new One());
else{
change.add(new Two());
change.repaint();
import javax.swing.*;
public class One extends JPanel {
private javax.swing.JPanel jPanel = null;
private javax.swing.JLabel jLabel = null;
private javax.swing.JPanel jPanel1 = null;
private javax.swing.JLabel jLabel1 = null;
private javax.swing.JLabel jLabel2 = null;
public One() {
super();
initialize();
* This method initializes this
* @return void
private void initialize() {
this.setLayout(new java.awt.BorderLayout());
this.add(getJPanel(), java.awt.BorderLayout.NORTH);
this.add(getJPanel1(), java.awt.BorderLayout.WEST);
this.setSize(300, 200);
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* @return javax.swing.JPanel
private javax.swing.JPanel getJPanel() {
if(jPanel == null) {
jPanel = new javax.swing.JPanel();
jPanel.add(getJLabel(), null);
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* This method initializes jLabel
* @return javax.swing.JLabel
private javax.swing.JLabel getJLabel() {
if(jLabel == null) {
jLabel = new javax.swing.JLabel();
jLabel.setText("one");
return jLabel;
* This method initializes jPanel1
* @return javax.swing.JPanel
private javax.swing.JPanel getJPanel1() {
if(jPanel1 == null) {
jPanel1 = new javax.swing.JPanel();
java.awt.GridLayout layGridLayout2 = new java.awt.GridLayout();
layGridLayout2.setRows(2);
layGridLayout2.setColumns(1);
jPanel1.setLayout(layGridLayout2);
jPanel1.add(getJLabel2(), null);
jPanel1.add(getJLabel1(), null);
return jPanel1;
* This method initializes jLabel1
* @return javax.swing.JLabel
private javax.swing.JLabel getJLabel1() {
if(jLabel1 == null) {
jLabel1 = new javax.swing.JLabel();
jLabel1.setText("one");
return jLabel1;
* This method initializes jLabel2
* @return javax.swing.JLabel
private javax.swing.JLabel getJLabel2() {
if(jLabel2 == null) {
jLabel2 = new javax.swing.JLabel();
jLabel2.setText("one");
return jLabel2;
import javax.swing.*;
public class Two extends JPanel {
private javax.swing.JLabel jLabel = null;
public Two() {
super();
initialize();
* This method initializes this
* @return void
private void initialize() {
this.setLayout(new java.awt.FlowLayout());
this.add(getJLabel(), null);
this.setSize(300, 200);
* This method initializes jLabel
* @return javax.swing.JLabel
private javax.swing.JLabel getJLabel() {
if(jLabel == null) {
jLabel = new javax.swing.JLabel();
jLabel.setText("two");
return jLabel;
}//change.repaint();
change.revalidate(); -
Advance level drawing problem with Jframe and JPanel need optimize sol?
Dear Experts,
I m trying to create a GUI for puzzle game following some kind of "game GUI template", but i have problems in that,so i tried to implement that in various ways after looking on internet and discussions about drawing gui in swing, but i have problem with both of these, may be i m doing some silly mistake, which is still out of my consideration. please have a look at these two and recommend me one of them, which is running without problems (flickring and when you enlarge window the board draw copies (tiled) everywhere,
Note: i don't want to inherit jpanel or Jframe
here is my code : import java.awt.BorderLayout;
public class GameMain extends JFrame {
private static final long serialVersionUID = 1L;
public int mX, mY;
int localpoints = 0;
protected static JTextField[][] squares;
protected JLabel statusLabel = new JLabel("jugno");
Label lbl_score = new Label("score");
Label lbl_scorelocal = new Label("local score");
protected static TTTService remoteTTTBoard;
// Define constants for the game
static final int CANVAS_WIDTH = 800; // width and height of the game screen
static final int CANVAS_HEIGHT = 600;
static final int UPDATE_RATE = 4; // number of game update per second
static State state; // current state of the game
private int mState;
// Handle for the custom drawing panel
private GameCanvas canvas;
// Constructor to initialize the UI components and game objects
public GameMain() {
// Initialize the game objects
gameInit();
// UI components
canvas = new GameCanvas();
canvas.setPreferredSize(new Dimension(CANVAS_WIDTH, CANVAS_HEIGHT));
this.setContentPane(canvas);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.pack();
this.setTitle("MY GAME");
this.setVisible(true);
public void gameInit() {
// Shutdown the game, clean up code that runs only once.
public void gameShutdown() {
// To start and re-start the game.
public void gameStart() {
private void gameLoop() {
public void keyPressed(KeyEvent e) {
public void keyTyped(KeyEvent e) {
public void gameKeyReleased(KeyEvent e) {
PuzzleBoard bd = getBoard();
for (int row = 0; row < 4; ++row) {
for (int col = 0; col < 4; ++col) {
if (e.getSource() == squares[row][col]) {
if (bd.isOpen(col, row)) {
lbl_score.setText("Highest Score = "
+ Integer.toString(bd.getPoints()));
setStatus1(bd);
pickSquare1(col, row, squares[row][col].getText()
.charAt(0));
protected void pickSquare1(int col, int row, char c) {
try {
remoteTTTBoard.pick(col, row, c);
} catch (RemoteException e) {
System.out.println("Exception: " + e.getMessage());
e.printStackTrace();
System.exit(1);
// method "called" by remote object to update the state of the game
public void updateBoard(PuzzleBoard new_board) throws RemoteException {
String s1;
for (int row = 0; row < 4; ++row) {
for (int col = 0; col < 4; ++col) {
squares[row][col].setText(new_board.ownerStr(col, row));
lbl_score.setText("Highest Score = "
+ Integer.toString(new_board.getPoints()));
setStatus1(new_board);
protected void setStatus1(PuzzleBoard bd) {
boolean locals = bd.getHave_winner();
System.out.println("local win" + locals);
if (locals == true) {
localpoints++;
System.out.println("in condition " + locals);
lbl_scorelocal.setText("Your Score = " + localpoints);
lbl_score
.setText("Highest Score = " + Integer.toString(bd.getPoints()));
protected PuzzleBoard getBoard() {
PuzzleBoard res = null;
try {
res = remoteTTTBoard.getState();
} catch (RemoteException e) {
System.out.println("Exception: " + e.getMessage());
e.printStackTrace();
System.exit(1);
return res;
/** Custom drawing panel (designed as an inner class). */
class GameCanvas extends JPanel implements KeyListener {
/** Custom drawing codes */
@Override
public void paintComponent(Graphics g) {
// setOpaque(false);
super.paintComponent(g);
// main box; everything placed in this
// JPanel box = new JPanel();
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
// add(statusLabel, BorderLayout.NORTH);
// set up the x's and o's
JPanel xs_and_os = new JPanel();
xs_and_os.setLayout(new GridLayout(5, 5, 0, 0));
squares = new JTextField[5][5];
for (int row = 0; row < 5; ++row) {
for (int col = 0; col < 5; ++col) {
squares[row][col] = new JTextField(1);
squares[row][col].addKeyListener(this);
if ((row == 0 && col == 1) || (row == 2 && col == 3)
|| (row == 1 && col == 4) || (row == 4 && col == 4)
|| (row == 4 && col == 0))
JPanel p = new JPanel(new BorderLayout());
JLabel label;
if (row == 0 && col == 1) {
label = new JLabel("1");
label.setHorizontalAlignment(JLabel.LEFT);
label.setVerticalAlignment(JLabel.TOP);
else if (row == 4 && col == 0) {// for two numbers or
// two
// blank box in on row
label = new JLabel("2");
label.setHorizontalAlignment(JLabel.LEFT);
label.setVerticalAlignment(JLabel.TOP);
else if (row == 1 && col == 4) {
label = new JLabel("3");
label.setHorizontalAlignment(JLabel.LEFT);
label.setVerticalAlignment(JLabel.TOP);
else if (row == 4) {
label = new JLabel("4");
label.setHorizontalAlignment(JLabel.LEFT);
label.setVerticalAlignment(JLabel.TOP);
else {
label = new JLabel("5");
label.setHorizontalAlignment(JLabel.LEFT);
label.setVerticalAlignment(JLabel.TOP);
label.setOpaque(true);
label.setBackground(squares[row][col].getBackground());
label.setPreferredSize(new Dimension(label
.getPreferredSize().width, squares[row][col]
.getPreferredSize().height));
p.setBorder(squares[row][col].getBorder());
squares[row][col].setBorder(null);
p.add(label, BorderLayout.WEST);
p.add(squares[row][col], BorderLayout.CENTER);
xs_and_os.add(p);
} else if ((row == 2 && col == 1) || (row == 1 && col == 2)
|| (row == 3 && col == 3) || (row == 0 && col == 3)) {
xs_and_os.add(squares[row][col]);
// board[ row ][ col ].setEditable(false);
// board[ row ][ col ].setText("");
squares[row][col].setBackground(Color.RED);
squares[row][col].addKeyListener(this);
} else {
squares[row][col] = new JTextField(1);
// squares[row][col].addActionListener(this);
squares[row][col].addKeyListener(this);
xs_and_os.add(squares[row][col]);
this.add(xs_and_os);
this.add(statusLabel);
this.add(lbl_score);
this.add(lbl_scorelocal);
public void keyPressed(KeyEvent e) {
public void keyReleased(KeyEvent e) {
gameKeyReleased(e);
public void keyTyped(KeyEvent e) {
// main
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new GameMain();
thanks a lot for your time , consideration and efforts.
jibby
Edited by: jibbylala on Sep 20, 2010 6:06 PMjibbylala wrote:
thanks for mentioning as i wasn't able to write complete context here.Yep thanks camickr. I think that Darryl's succinct reply applies here as well.
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