New Class!

I am about to start teaching a begginer java class in Houson in a few weeks. I know a few of the members of this froum have participated in these type of courses before. Is there anything that was left out in your classes that you think should have been covered. Do ya'll have any Ideas on what I can do to be the best Java teacher ever. I wan't my students to learn and exel beyond that which I tought to myself.
Thanks for any input,
Ian Mechura

Ian,
Thanks for asking. My biggest complaint about the first Java class that I took is that the instructor basically showed the slides that he had prepared with bullet points, etc., but did not explain them well. At the end of that class I knew the basic syntax of the language, but had no idea what the difference was between static and non-static variables, methods, and classes. I also had no clue how to tie classes together to make good quality, reusable, object oriented code.
I know that it's important to learn the syntax first, so that you can write something that compiles. But my advice would be to spend a few classes on syntax, etc., and then spend a substantial amount of time discussing concepts: start with the "how," but then spend time on the "why." For example, I'm sure that my instructor said at one point, "you can't use a non-static variable in a static method," but never explained why not. Personally, I find the "why" very, very valuable in helping me write qood quality code.
Best of luck, and let us know how it goes!
Rich

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Error during creating a new class diagram

Hi everbody,
I'm using JDeveloper 10.1.3.3.0 with ADF Faces and Toplink. I'm exposing to an error message in JDeveloper while creating a new class diagram. The error message is shown in dialog and saying "The name of the element can not be set to 'package name' as another element has got the same name in the package". I have controlled the name of the new class diagram. The name is unique in the package. Also I'm creating this new file in the package "tr.com.bilisim.class_diagram" and details part of this error message in dialog also says
"BME-02002 : The name of the element can not be set to 'class_diagram' as another element has got the same name in the package"
"BME-02002 : The name of the element can not be set to 'bilisim as another element has got the same name in the package"
"BME-02002 : The name of the element can not be set to 'com' as another element has got the same name in the package"
"BME-02002 : The name of the element can not be set to 'tr' as another element has got the same name in the package"
As I understand from the error message, during creating a new class diagram from 'new file dialog' also tries to create the directories in relevant package (tr.com.bilisim.class_diagram).
How can I solve this problem? Please urgent help!
best regards...
--baris

-repost
please urgent
--barisk

How can i add custom attributes to a new Class Object using the API ?

Hello everyone,
Here is my problem. I just created a subclass of Document using the API (not XML), by creating a ClassObjectDefinition and a ClassObject. Here is the code :
// doc is an instance of Document
ClassObject co = doc.getClassObject();
ClassObjectDefinition cod = new ClassObjectDefinition(ifsSession);
cod.setSuperclass(co);
cod.setSuperclassName(co.getName());
cod.setName("MYDocument");
ClassObject c = (ClassObject)ifsSession.createSchemaObject(cod);
Everything seems to be OK since i can see the new class when i use ifsmgr. But my question is : how can i add custom attributes to this new class ? Here is what i tried :
AttributeDefinition value = new AttributeDefinition(ifsSession);
value.setAttribute("FOO", AttributeValue.newAttributeValue("bar"));
c.addAttribute(value);
But i got the following error message :
oracle.ifs.common.IfsException: IFS-30002: Unable to create new LibraryObject
java.sql.SQLException: ORA-01400: impossible d'insirer NULL dans ("IFSSYS"."ODM_ATTRIBUTE"."DATATYPE")
oracle.ifs.server.S_LibraryObjectData oracle.ifs.beans.LibrarySession.DMNewSchemaObject(oracle.ifs.server.S_LibraryObjectDefinition)
oracle.ifs.beans.SchemaObject oracle.ifs.beans.LibrarySession.NewSchemaObject(oracle.ifs.beans.SchemaObjectDefinition)
oracle.ifs.beans.SchemaObject oracle.ifs.beans.LibrarySession.createSchemaObject(oracle.ifs.beans.SchemaObjectDefinition)
void fr.sword.ifs.GestionDocument.IFSDocument.createDocument(java.lang.String)
void fr.sword.ifs.GestionDocument.IFSDocument.main(java.lang.String[])
So, what am i doing wrong ?
More generally, are we restricted in the types of the attributes ? (for example, would it be possible to add an attribute that would be an inputStream ? Or an object that i have already created ?).
Any help would be appreciated. Thanks in advance.
Guillaume
PS : i'm using Oracle iFS 1.1.9 on NT4 SP6 and Oracle 8.1.7
null

Hi Guillaume,
you're welcome. Don't know exactly, but assume that ATTRIBUTEDATATYPE_UNKNOWN
is used to check for erronous cases only
and it shouldn't be used otherwise.
Creating your own objects could be simply done via
ClassObject ifsClassObject;
DocumentDefinition ifsDocDef = new DocumentDefinition(ifsSession);
// get class object for my very own document
ifsClassObject = ClassObject.getClassObjectFromLabel(ifsSession, "MYDOCUMENT");
// set the class for the document i'd like to create
ifsDocDef.setClassObject(ifsClassObject);
// set attributes and content for the document...
ifsDocDef.setAttribute("MYFOO_ATTRIBUTE",....);
ifsDocDef.setContent("This is the content of my document");
// create the document...
PublicObject doc = ifsSession.createPublicObject(ifsDocDef);
null

How to add new class to existing DC (Web Dynpro project)

Hi,
How can I add new class to an existing DC (Web Dynpro project)?
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Then I created a new DC (java project) and created a new class in that DC. This went fine, but I got into problems because of circular referencing between the new & the old DC, so no build was possible.
This can't be difficult, does somebody knows how to do it?
My temporary solution is to add the classdefinition to an exisiting .java file. Very ugly.
Thanks,
Jeroen

Hi Jeroen,
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Regards,
Marc

Adding a new class with Creator (really simple problem i think..)

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Exception Details: org.apache.jasper.JasperException
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typo: correct Paint() to paint()

Creating a new "Class type" in release procedure.

Hi guys,
how can I create a new <b>"Class type"</b> in release procedure?

Hi,
But I do not know why anyone would create a new batch type for release strategies, it is totally unnecessary and provides no additional options. The class type indicates which objects can be classified and there is already one for release strategies.
You can create a new class or add characteristics to the existing class used in the release strategy anyway.
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Creating a new class using a template class

I am very new to Java.
I need to make a new class by using a template class that was given to us.
I go to File / New / Class but cannot find how to select a template class to create a new class.
Thanks,
gs

gs2010 wrote:
I am very new to Java.
I need to make a new class by using a template class that was given to us.
I go to File / New / Class but cannot find how to select a template class to create a new class.
Thanks,
gsYou need to be much more specific as to what you are trying to do.
What is a "template class"?
How are you trying to "go to" and "select" the template?
Etc.

Creating a new class type in the classification system

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This is what I have done so far:
in SPRO:
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I have repeated this procedure several times with always the same results.
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How to add new class in modified template...

Finally I have encourage myself to scratch to (for me deepest darkwood) templates...
I have modified original Theme 2 to My theme 2 and added in some tempaltes region my parts-looks promising.
Now I want to create sidebar region that is 450 px wide.
It should be the same sidebar region but with different width!
I saw on file system that there is .css so I add this class in it....(as aspected) it is not shown in template class list...
I am able to apply that new class to template, but I cannot see that class in "Template Class" LOV (in Edit Region Template form).
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THX!

I have now working template with my new class...
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How do you add a new class package?

Hi guys,
I have just started using J2SE and I need to add a new class definition. This is to be imported at the start of the program,
ie. import cs1.Keyboard;
The thing im not sure of is, how do I make the compiler know where the Keyboard class is? Which directory do I have to put it in?
If anyone has any idea, it would be really appreciated. Thanks

Put Keyboard.class in a directory named cs1 and add the parent of cs1 to your CLASSPATH when you compile and run:
http://java.sun.com/j2se/1.4.2/docs/tooldocs/windows/classpath.html
MOD

Define a new class in CSS for the width in a standard report column

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div.reportcol30{width:30em;}
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Dear Denes Hi,
I tried (display:block;width:500px;overflow:hidden;) in my application, but the problem is that
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Adding componets to a new class

I've created a new class for BidFrame Jframe, and would like to get contents from the previous method to use, or even start afresh. But when i declare an item, it still doesn't work. What am i doing wrong? The problem lies in BidFrame extend JFrame....if the code is taken out of the two brackets, everything else works. Please help
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import javax.swing.*;
import javax.swing.border.*;
import java.lang.*;
public class EasyAuction extends JFrame
     // JPanel for login window
             private JPanel biddingJPanel, oneJPanel, welcomeJPanel, registertwoaJPanel;
             private JLabel titleJLabel, buyernameJLabel, buyerpasswordJLabel, buyerJLabel, sellernameJLabel, sellerpasswordJLabel, sellerJLabel;
             private JButton buyerJButton, sellerJButton, registeroneJButton, registertwoJButton;
             private JTextField buyernameJTextField, buyerpasswordJTextField, sellernameJTextField, sellerpasswordJTextField;
             private JComboBox itemJComboBox;
             public JPanel BidFrameJFrame;
//Publics JPanels
//public JPanel registertwoJFrame;
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             private void createUserInterface()
                 //get contentPane
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               //and set layout to null
                  contentPane.setLayout(null);
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                  setTitle( "Easy Auction" ); // set JFrame's title bar string
                setSize( 300, 200);   // set width and height of JFrame
                setVisible( true );    // display JFrame on screen
             } // end method createUserInterface
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                       //setup oneJPanel
                       oneJPanel = new JPanel();
                       oneJPanel.setLayout( new FlowLayout() );
                       oneJPanel.setBounds(0,0, 300,200);
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                     oneJPanel.add( buyernameJLabel );
                     //setup nameJTextField
                     buyernameJTextField = new JTextField(15);
                    buyernameJTextField.
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                    oneJPanel.add( buyernameJTextField );
                    //setup buyerpasswordJLabel
                    buyerpasswordJLabel = new JLabel();
                    buyerpasswordJLabel.setText("Pass word ");
                    oneJPanel.add( buyerpasswordJLabel);
                    //setup buyerpasswordJTextField
                    buyerpasswordJTextField = new JTextField(15);
                    buyerpasswordJTextField.setEnabled(true);
                    oneJPanel.add( buyerpasswordJTextField);
                    //setup buyerJLabel
                    buyerJLabel = new JLabel();
                    buyerJLabel.setText("Click on Buyer Button");
                    oneJPanel.add(buyerJLabel);
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                    buyerJButton = new JButton ();
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                    buyerJButton.setBackground( Color.YELLOW );
                    oneJPanel.add( buyerJButton );
                    buyerJButton.addActionListener(
                         new ActionListener(){
                              public void actionPerformed( ActionEvent event )
                                   BidFrame f = new BidFrame();
                               f.setVisible(true);
                    //setup registeroneJButton
                    registeroneJButton = new JButton ();
                    registeroneJButton.setText ("Register");
                    registeroneJButton.setBackground ( Color.ORANGE);
                    oneJPanel.add( registeroneJButton);
                    //setup sellernameJLabel
                    sellernameJLabel = new JLabel();
                    sellernameJLabel.setText("Seller Name");
                    oneJPanel.add( sellernameJLabel);
                    //setup sellernameJTextField
                    sellernameJTextField = new JTextField(15);
                    sellernameJTextField.setEnabled(true);
                    oneJPanel.add(sellernameJTextField);
                    //setup sellerpasswordJLabel
                    sellerpasswordJLabel = new JLabel();
                    sellerpasswordJLabel.setText("Pass word ");
                    oneJPanel.add( sellerpasswordJLabel );
                    //setup sellerpasswordJTextField
                    sellerpasswordJTextField = new JTextField(15);
                    sellerpasswordJTextField.setEnabled(true);
                    oneJPanel.add( sellerpasswordJTextField );
                    //setup sellerJLabel
                    sellerJLabel = new JLabel();
                    sellerJLabel.setText("Click on Seller Button");
                    oneJPanel.add(sellerJLabel);
                    //setup sellerJButton
                    sellerJButton = new JButton ();
                    sellerJButton.setText("Seller");
                    sellerJButton.setBackground( Color.YELLOW );
                    oneJPanel.add( sellerJButton );
                    //setup registertwoJButton ();
                    registertwoJButton = new JButton ();
                    registertwoJButton.setText("Register");
                    registertwoJButton.setBackground( Color.ORANGE);
                    oneJPanel.add( registertwoJButton );
                    contentPane.add(oneJPanel);
                return;
          public class BidFrame extends JFrame
                  oneJPanel.setVisible(false);
               biddingJPanel = new JPanel ();
     biddingJPanel.setLayout( new FlowLayout() );
          biddingJPanel.setBounds(0, 0, 300,200);
          biddingJPanel.setVisible(true);
          setup itemJComboBox
          itemJComboBox = new JComboBox( );
          biddingJPanel.add (itemJComboBox);
          contentPane.add(biddingJPanel);
          // main method
             public static void main( String[] args )
                EasyAuction application = new EasyAuction();
                application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
             } // end method main
}//ends public class Bidding

Normally you would use a modal JDialog, not a JFrame, to gather additional information.
If you need data to display in the dialog then just pass the data when you create the dialog:
BidDialog dialog = new BidDialog(parameter1, parameter2, ....);
dialog.setModal( true );
dialog.setVisible(true);

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lucky14life wrote:
first i was wondering what everyone thinks about macbooks compared to let's say another pc like hp,dell,etc.... i have been told that i'd have to be dumb to get a machine with windows vista on it,so that is why i have turned my focus to a macbook because i have heard they are pretty good and worth it...
I personally like my MacBook better than any other computer I have ever owned. I like being able to use windows when I need to but not being tied to it. My wife bought an HP with Vista and it doesn't seem to bad. Lots of updates at least one a week. Mostly graphic card drivers update.
also is it true that if you upgrade let's say the memory,hard drive,etc it won't be covered in the warranty/apple care plan??
Only two things you can upgrade on a MacBook is the Hard drive and Memory. It will not void the warranty. This is apples word on it. DIY Warranty Info
I would just like to ask for people's opinions please on purchasing one of these i am currently a senior in college and will be using it next year for grad school,need to replace the one i currently have...
Be sure you can live with the graphics. If you do a lot of graphics work you might want to consider the MacBook Pro. I use my MacBook for video editing using Final Cut Express HD and it works well. The MB is also not very good for gaming if you are into that. The integrated chip set doesn't work well with 3D games.
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Depending on your school may be a factor in what you choose. I use iWork and it is pretty good. You could also try NeoOffice or Open Office. They are good also. Office is supposed to be coming out with a new Mac version but not sure yet how it will work.
Be sure to ask for the student discount when you purchase the computer and software. It adds up.

Authoring Tool "Inherit Class" vs "New Class" vs "Extended Class" Scenario Help

Hi Community,
I am currently creating the ground work needed to create Self Service Portal Request Offerings to be used by end users and then take that input and automate it with Orchestrator.
I'm pretty comfortable with the overall process of how this is done, but I was hoping to get guidance from the community to make sure that I don't waste my time by editing my existing management pack incorrectly from the beginning.
We currently have a Whole bunch of SR and IR Templates in a Management Pack - lets call it: "Company.Templates.MP" now what I want to do is edit this MP and add new List and String Properties to hold the responses provided from the
Self Service Portal so that I can use a Runbook Activity to feed these responses into Orchestrator.
Now what I have done is "Extended" the existing "Service Request" and "Incident" classes and created the new properties in each extended class. Now that I have Extended the default Classes I believe that the properties now apply
to EVERY existing and new SR and IR.
My question is... Do you think I have done this correctly?
I have a gut feeling that I have done it wrong and I should revert my MP changes and then instead of extending the existing IR and SR Classes which affect all existing Work Items, I should create a new SR and IR class which would then be used to create new
Templates which are then ONLY ones that contain the new properties that would be used for Runbook Automation.
The feedback I receive will be VERY MUCHLY appreciated...

Answering your implicit question in the title:
Inherit is where you create a new class that has all the properties of the parent and then some new ones also, but people can still use the parent for regular work. This is for specialization, like say you want a new type of incident to
cover firewall problems, and need new properties for the IP and Ports from the portal.
Extended would be where you add properties to a class that make sense for all of those and all inheriting classes. say the client has a cost of IT tracking system where every Incident and Service Request needs to be assigned a cost of effort
code, you would create two extensions for Incident and Service request, and point them at the same enum list. you wouldn't extend WorkItem, because changes, activities, released etc wouldn't use a simple cost estimate list value, and you wouldn't inherit off
of SR and IR because all user requests should have this property, even if some of them are blank
New would be a class from scratch that inherits from Entity. This is hardly ever what you want to do, because even completely new things are either work items or config items, and should, where ever possible, inherit from one of those
basil classes
Now to your explicit question: No, i think you've done exactly what the situation called for. every SR should have this value, even if it is empty for the historical items.
two side notes: 1) any item that refers to the base of an extension will continue to work as expected, but 2) Offerings are always the exception. The net of these two rule of thumb guidelines is that your existing templates should continue to work
without modification, but you may have to recreate the offering before you can use the new property in a question.
AFAIK you cannot extend an abstract calls (ex. Work Item), but I could be wrong.
http://codebeaver.blogspot.dk/

How to create a new class

Hi,
I'm trying to create a new class called Questions, which has
two properties (type and condition).
The action script is saved in the folder myComponents under
the project.
When I compile the Main app, I get the following error
message:
"1172 Definition myComponents:Question could not be found."
Why?
How do you call a constructor for a new class, that is not an
extension of an existing class?
Regards
/Acke
//-----------Class----------//
package myComponents
// Import all classes in the mx.events package
import mx.events.*;
public class Question {
// Public constructor.
public var Question(){
// Call the constructor in the superclass.
//super();
// Define properties and methods.
// Define public vars.
public var type:string;
public var condition:string;
//------Main----------//
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute"
xmlns:MyComp="myComponents.*">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
import mx.events.CloseEvent;
import myComponents.Question;
etc, etc....

quote:
Originally posted by:
MannenMytenLegenden
Hi,
I'm trying to create a new class called Questions, which has
two properties (type and condition).
The action script is saved in the folder myComponents under
the project.
When I compile the Main app, I get the following error
message:
"1172 Definition myComponents:Question could not be found."
Why?
How do you call a constructor for a new class, that is not an
extension of an existing class?
Regards
/Acke
//-----------Class----------//
package myComponents
// Import all classes in the mx.events package
import mx.events.*;
public class Question {
// Public constructor.
public var Question(){
// Call the constructor in the superclass.
//super();
// Define properties and methods.
// Define public vars.
public var type:string;
public var condition:string;
//------Main----------//
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute"
xmlns:MyComp="myComponents.*">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
import mx.events.CloseEvent;
import myComponents.Question;
etc, etc....
Here is a test class I created a while back, although this
one does extend Object it might help you out a bit with your
constructor issue:
package com.evilest
import mx.controls.Alert;
public class Testing_class extends Object
private var message:String = new String();
public function Testing_class(input:String) {
this.message = input;
public function showAlert():void {
Alert.show(this.message, "sup");
}

How to use a new class in SAP XI

Hi @,
I have created one new class for the purpose of exception and error handling .I dont know as to where and how i should use this class within SAP XI .How can i include this class so that the effect can be viewed during runtime
Regards

Hi,
In general we will create the package and import under archieves and create USDF in mapping there , you can mention as undr import that package , in code , in UDF , you can use package.class
see the below link for more details
/people/alessandro.guarneri/blog/2006/01/26/throwing-smart-exceptions-in-xi-graphical-mapping
Regards
Chilla
<i>reward points if it is useful..</i>

New Class!

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