How do you declare on A class' variables as public?

simply by puttin gpublic in front of it eg a variable
int z = 6;this would be
public int z = 6;

Similar Messages

How do you call a java class from the main method in another class?

Hi all,
How do you call a java class from the main() method in another class? Assuming the two class are in the same package.
Thanks
SI
Edited by: okun on May 16, 2010 8:40 PM
Edited by: okun on May 16, 2010 8:41 PM
Edited by: okun on May 16, 2010 8:47 PM

georgemc wrote:
To answer your impending question, either the method you're calling has to be static, or you need an instance of that other class to invoke it against. Prefer the latterAnd to your impending question after that: no, don't use the Singleton pattern.

How do you compile Flex-dependent classes with ASC?

Hi,
I've been trying unsuccessfully for most of the evening to compile a .as file that relies on mx.collections.ListCollectionView using asc. I figured I could just import the Flex framework SWCs from the command line with asc, but asc doesn't seem to respect SWCs - it only seems to respect .abc files.
So, I've spent most of my time trying to compile the Flex framework into a single .abc file that I can import whenever I want to compile a class that relies on Flex. I figured I could make a base .as file with include statements for all of the Flex .as files (copying the approach I saw for files like builtin.as) and compile that, but all I seem to get are compiler errors - mostly "[Compiler] Error #1181: Forward reference to base class (base class name)."
I have a feeling I'm doing this completely the wrong way. I'd very much appreciate any assistance that anybody can offer me.
Thanks,
- max

<div class=Section1> color:#1F497D'>I use MXMLC to compile my .as file projects.<o:p></o:p> color:#1F497D'><o:p> </o:p> color:#1F497D'>Alex Harui<o:p></o:p> color:#1F497D'>Flex SDK Developer<o:p></o:p> color:#1F497D'><a href="http://www.adobe.com/">Adobe Systems Inc.</a><o:p></o:p> color:#1F497D'>Blog: <a href="http://blogs.adobe.com/aharui"><span style='color:blue'>http://blogs.adobe.com/aharui</a><o:p></o:p> color:#1F497D'><o:p> </o:p> <div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'> From:<span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Maxim Porges [mailto:[email protected]] Sent: Monday, February 09, 2009 9:22 PM To: [email protected] Subject: How do you compile Flex-dependent classes with ASC?<o:p></o:p> </div> <o:p> </o:p> A new discussion was started by Maxim Porges in Developers -- How do you compile Flex-dependent classes with ASC? Hi, I've been trying unsuccessfully for most of the evening to compile a .as file that relies on mx.collections.ListCollectionView using asc. I figured I could just import the Flex framework SWCs from the command line with asc, but asc doesn't seem to respect SWCs - it only seems to respect .abc files. So, I've spent most of my time trying to compile the Flex framework into a single .abc file that I can import whenever I want to compile a class that relies on Flex. I figured I could make a base .as file with include statements for all of the Flex .as files (copying the approach I saw for files like builtin.as) and compile that, but all I seem to get are compiler errors - mostly "[Compiler] Error #1181: Forward reference to base class (base class name)." I have a feeling I'm doing this completely the wrong way. I'd very much appreciate any assistance that anybody can offer me. Thanks, - max <o:p></o:p> <div class=MsoNormal> <hr size=2 width=200 style='width:150.0pt' align=left> </div> View/reply at <a href="http://www.adobeforums.com/webx?13@@.59b7d5d2">How do you compile Flex-dependent classes with ASC?</a> Replies by email are OK. Use the <a href="http://www.adobeforums.com/webx?280@@.59b7d5d2!folder=.3c060fa3">unsubscribe</a> form to cancel your email subscription.<o:p></o:p> </div>

How do you declare and call a function?

I wrote the code that's gonna need to be repeated many different times in my program so i need to make a function that i can call with the code inside it. i tried
public class MyFunction
// My code
}This will compile but as soon as i put some code in that manipulates any variable, it won't compile. it will declare a variable though. For example i can say int i; but as soon as i say i++; OH NO 50 million compiler errors. So what is the proper way to declare a function? How do you call it? Please don't just say read this and send me a link, i always find it hard to follow those tutorials.
thanks, lateralus

That's a class, you need a method.
public void myFuntion()
//code goes here
}You can call that method from almost anywhere like this.
myFunction();

How to declare java.lang.Class variable that can be used in Enum.valueOf(.)

As per subject -- we have a need to declare variable in class that will hold enum's Class object. At some point we want to use this variable as a Class argument for Enum.valueOf(.) which has the following signature:
public static <T extends Enum<T>> T valueOf(Class<T> enumType, String name) {..}So far we cannot come up with a workable solution.
private final Class<? extends Enum<?>> propertyClass;doesn't work (apparently because second ? should in fact be the same as first ? -- which works with T for class/method templates, but cannot be used for variables). Error message (in Eclipse) is:
Bound mismatch: The generic method valueOf(Class<T>, String) of type Enum<E> is not applicable for the arguments (Class<capture#13-of ? extends Enum<?>>, String). The inferred type capture#13-of ? extends Enum<?> is not a valid substitute for the bounded parameter <T extends Enum<T>>
So what would be the proper way to declare the variable?
Thanks in advance!

the enum.valueof method is a little weird. they implemented it so it is nice and "safe". if you don't care about that safety, you can probably work with raw types for that bit of code and get the call to go through. you just won't have any type safety on the result.

How do you use the JSObject class?

Hello everyone,
So, I am trying to make a java applet call a java script function and I am having some problems.... I began by looking at the JSObject class.... Does the JSObject class come standard with an installation of java? or do I have to find it separately? Also, does it make a difference as to what operating system I'm compiling my applet one? I have been developing in mac, and I cant get my applet to compile, it claims that the netscape.javascript package can't be found..... Any suggestions on this? I'm kinda new to Java web development, as I have only been doing it for a month or so, so please keep any answers simple. Also, any other suggestions by which an applet can call a javascript function are greatly appreciated. Thanks beforehand.

>
So, I am trying to make a java applet call a java script function and I am having some problems.... I began by looking at the JSObject class.... Does the JSObject class come standard with an installation of java? or do I have to find it separately? >It is included in the JRE, but 'well hidden'.
>
Also, does it make a difference as to what operating system I'm compiling my applet one? >Quite possibly. The Win version puts the main classes into rt.jar, but the netscape classes are in plugin.jar. These are both in the general path ${java.home}/lib/.
>
..I have been developing in mac, and I cant get my applet to compile, it claims that the netscape.javascript package can't be found..... Any suggestions on this? >Add the classes (once you locate them), onto the compile time classpath. I could give you links to documentation on how to do that for either *nix or Windows, but I am not sure how Mac does it.

How do you invoke custom java classes???

Could someone post a detailed method of invoking custom java classes that works including what files go where, settings and the way it is invoked etc.
I have tried various ways from this forum and in the documentation without success. I am using IDM 8. I found these instructions regarding how you would do it if you were writing custom resource adaptors in the deployment tools guide:
To install a resource adapter youve customized:
1. Load the NewResourceAdapter.class file in the Identity Manager installation
directory under
idm/WEB-INF/classes/com/waveset/adapter/sample
(You might have to create this directory.)
2. Copy the .gif file to idm/applet/images.
This .gif file is the image that displays next to the resource name on the List
Resources page, and it should contain an image for your resource that is
18x18 pixels and 72 DPI in size.
3. Add the class to the resource.adapter property in
config/waveset.properties.
4. Stop and restart the application server. (For information about working with
application servers, see Identity Manager Installation.)
I tried the instructions here but placed my custom class in a folder entitled custom instead of /adapter/sample. Not sure about instruction 3 or whether it is relevent. Anyway nothings working.
Edited by: masj78 on Nov 25, 2008 3:50 AM
Edited by: masj78 on Nov 25, 2008 4:03 AM

Hi,
The way to add custom class is the same as you followed , put them in the WEB-INF/classes.
To use the custom adapter ,
Go To Resources - > Configure Types -> Add Custom Resource .
Type in the fully qualified class name of the custom adapter you added.and Save.
Now the new adapter you added should showup in the list of available adapters when you try to
configure a new adapter.
(Make sure that the prototype XML of your custom adapter is correct so that it displays the correct name / type for the adapter in the adapter list.
Thanks,
Balu

How Can You Tell if the URLRequest Variables Are Posted?

Hi,
This sounds really odd, because I happen to have three variables I am supposed to pass to an httpservice and have the results output to my Flex app.
The problem is, I don't know how I can tell if a variable has been posted or not, because no matter what I do, it looks like my trace statement is accurate, but there is nothing shown on the screen.
I tried changing it to GET, and then I get this IO Event Handler error, because my variables are so long.
var loader:URLLoader = new URLLoader();
        var url:String = "http://localhost/generic.php";
        var variables:URLVariables = new URLVariables();
            variables.from= from_string;
            variables.state_colors = state_colors_string;
            variables.change = change_string;
        var encode:String= encodeURI(url);
        var pattern:RegExp = /#/g;
        var decode:String = encode.replace(pattern,"%23");
        var request:URLRequest = new URLRequest(decode);
        request.method = URLRequestMethod.POST;
I am wondering if my variables have been passed correctly. Is there some other way other than using trace statements?
Thanks for your help.

Hi,
Thanks for the tip, and I have just done that with my php code end. It turns out that the file was generated, and the file is blank after the code has finalized execution.
So, I guess that my POST variables is definitely not posted.
By the way, I have added a couple of lines for security and IO checks, like you suggested, and here is the almost complete code:
public function changeMap():void{
        var url:String = "http://localhost/generic.php";
        var variables:URLVariables = new URLVariables();
            variables.from= from_string;
            variables.state_colors = state_colors_string;
            variables.change = change_string;
        var encode:String= encodeURI(url);
        var pattern:RegExp = /#/g;
        var decode:String = encode.replace(pattern,"%23");
        var request:URLRequest = new URLRequest(decode);
        request.method = URLRequestMethod.POST;
        var loader:URLLoader = new URLLoader();
        loader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, onSecurityError);
        loader.addEventListener(IOErrorEvent.IO_ERROR, onIOError);
        loader.addEventListener(Event.COMPLETE, onLoadComplete);
        loader.load(request);
         private function onSecurityError(event:SecurityErrorEvent):void {
            trace("securityErrorHandler: " + event);
         private function onIOError(event:IOErrorEvent):void {
            trace("ioErrorHandler: " + event);
        public function onLoadComplete(event:Event):void {             //event output
From the console, the error events returned nothing from the addEventListeners.
When I used GET before, they worked with two passing variables, but since my variables are now more than 512 characters, I cannot put this on the url, which is why I am insisting on using POST here.
Have I done anything else wrong here?
Thanks for your help.

How do you declare objects in the master database

I am trying to register our CLR assembly as an unsafe assembly without having to make the database trustworthy. Since making the database is_trustworthy_on = 1 is not a best practice, and would cause some of our customers (and our development process)
a little bit of grief.
I have read a ton about it but am still having trouble.
The reason the assembly is 'Unsafe' is because it is calling the TimeZoneInfo class to convert between timezones, since we are not yet on UTC dates. We plan to in the future but that's a big project.
We are also not using the 'SQLCLR' but rather have written our own class library and just have a project reference to it, which works just the same, but we have found to be better for the C# programmers.
I am playing with signing the assembly using an SNK file and have figured out what I need to do, including 1) creating a master key, 2) creating an asymmetric key using the same SNK file that signed the assembly, 3) creating a login for the asymmetric key,
and 4) granting unsafe assembly to the login.
When I do all that with straight SQL, it actually works! But I am having trouble fitting this into our SSDT world.
Should I create a separate SSDT project for items #1 through #4 above, and reference it, and check 'Include composite objects' in our publishing options? As stated in this blog post though, I'm terrified of messing up the master database, and I'm not
excited about the overhead of another project, a 2nd dacpac, etc.
http://blogs.msdn.com/b/ssdt/archive/2012/06/26/composite-projects-and-schema-compare.aspx
Since we do use a common set of deployment options in a deployment tool we wrote, which does set the 'block on data loss' to false, and the 'drop objects not in source' to true, b/c we drop tables all the time during the course of refactoring, etc.
I don't want to drop anything in master though, and I don't want to have to publish it separately if we didn't have to.
I suppose I could just have some dynamic SQL in a pre-deployment script that takes care of the master database, but I was trying to do it the 'right' way, in a declarative style, but struggling.
So, in short, what's the recommended approach for getting an 'unsafe' CLR assembly into an SSDT project?
The error that started all this was:
CREATE ASSEMBLY for assembly *** failed because assembly *** is not authorized for PERMISSION_SET = UNSAFE.
The assembly is authorized when either of the following is true:
the database owner (DBO) has UNSAFE ASSEMBLY permission and the database has the TRUSTWORTHY database property on;
or
the assembly is signed with a certificate or an asymmetric key that has a corresponding login with UNSAFE ASSEMBLY permission.
Also, would a certificate be better than an asymmetric key? I'm not entirely sure of the difference just yet to be honest.
Thanks,
Ryan

After much fighting with this, figured something out as a workaround, and thought I'd share it.
First, I'm pretty certain the SSDT declarative way for these master objects just doesn't work yet.
My workaround was to make a pre-deployment script (that runs when we create new databases, as well as for the current release), that takes care of the security items needed to support a signed CLR assembly with unsafe permissions.
One issue we were running into was when it came to creating the asymmetric key, there are 4 ways to do so, and we didn't want to depend on a hard-coded/absolute file path. The 4 ways are "From file", "from external file", "from
assembly", or "from provider". I still don't 100% understand the from provider way, but ultimately we are actually using the from assembly way, with a little trick/hack I did that allows us to not have to use the 'from file' way and to
reference a hard-coded path on someone's C:\ drive. I really really didn't want to do that b/c we create local dev databases all the time and not everyone has the same paths setup. Also, our databases are deployed on our servers as well as remote-hosted-customer
servers, and up until now, the database release has not needed file system access. Even the CLR itself is created using assembly_bits, which is awesome.
So I thought of something...
What if I had a simple/temporary assembly, which I create from assembly_bits, use to import the public key from, through the create asymmetric key from assembly command, and then drop as if it never existed?
Well...it works!
Here is my current prototype of a pre-deployment script, which I'll go through and cleanup more, but thought I'd share. I also want to document how I created the temporary assembly_bits in case anyone ever wants or needs to know, even though they really
shouldn't. But it should make them feel better. Basically I just created did this to get them:
1 - Created a C# Class Library project in the solution.
2 - Added our .SNK to that project and removed the 'Class1.cs' that it created by default
3 - Signed that class library with the .SNK
4 - Added a project reference to that class library from the main database solution.
5 - Generated a deployment script (but didn't run it) and grabbed the create assembly statement (copy/paste)
6 - Deleted the temporary project
7 - Pasted the code I had copy/pasted into the pre-deployment script
Note that the objects do apparently need to go into MASTER, so at the end of the pre deployment script, I switch back to the automatic [$(DatabaseName)] after first having done USE master.
Hope this helps someone. Finally got it!
BTW - The other way we almost used was to introduce a SqlCmdVariable of $StrongNameKeyFilePath but that would have been a hassle for people to set whenever they got a new machine, etc.
Thanks,
Ryan
PRINT '**************************************************************************'
PRINT 'Pre\SetupMasterDatabaseKeysAndLoginsIfNecessary.sql'
PRINT '**************************************************************************'
PRINT '************************************************************************************'
PRINT 'If they do not already exist, create the database master key, as well as the asymmetric'
PRINT 'key, from the Strong-Named File (.SNK) which signed the CLR assembly. Finally, also'
PRINT 'create a login from that asymmetric key and grant it the UNSAFE ASSEMBLY permission.'
PRINT 'This is all necessary b/c the CLR currently has to be referenced for UNSAFE permissions'
PRINT 'in order to access the TimeZoneInfo class. This code and these objects can be removed'
PRINT 'if the system is ever updated to use all UTC dates and no longer requires the TimeZoneInfo class.'
PRINT '************************************************************************************'
USE master
PRINT N'Creating Temporary Assembly [Wits.Database.AsymmetricKeyInitialization]...'
CREATE ASSEMBLY [Wits.Database.AsymmetricKeyInitialization]
AUTHORIZATION [dbo]
FROM 0x4D5BlahBlahBlah;
IF NOT EXISTS (SELECT 1 FROM sys.symmetric_keys WHERE name LIKE '%DatabaseMasterKey%')
BEGIN
PRINT 'Creating Master Key...'
CREATE MASTER KEY
ENCRYPTION BY PASSWORD = 'I Removed This Part For This Post'
END
IF NOT EXISTS (SELECT 1 FROM sys.asymmetric_keys WHERE name = 'ClrExtensionAsymmetricKey')
BEGIN
PRINT 'Creating Asymmetric Key from strong-named file...'
CREATE ASYMMETRIC KEY [ClrExtensionAsymmetricKey]
FROM ASSEMBLY [Wits.Database.AsymmetricKeyInitialization]
END
IF NOT EXISTS (SELECT 1 FROM sys.server_principals WHERE type_desc = 'ASYMMETRIC_KEY_MAPPED_LOGIN' AND name = 'ClrExtensionLogin')
BEGIN
PRINT 'Creating Login from Asymmetric Key...'
CREATE LOGIN [ClrExtensionLogin] FROM ASYMMETRIC KEY [ClrExtensionAsymmetricKey]
PRINT 'Granting Permissions to Login created from Asymmetric Key...'
GRANT UNSAFE ASSEMBLY TO ClrExtensionLogin
END
PRINT N'Dropping Temporary Assembly [Wits.Database.AsymmetricKeyInitialization]...'
DROP ASSEMBLY [Wits.Database.AsymmetricKeyInitialization]
USE [$(DatabaseName)]

How do you generate a runtime class for iconFunction from a BitmapData?

Hi,
I have a AdvancedDataGrid that I would like to generate a colored square bitmap as the icon, and give it to iconFunction.
But iconFunction required the return of Class, but I have the BitmapData generated, can anyone provide a solution? Thanks.
Here is my code :
private function iconCallBack(item:Object):Class
 var layerNode:LayerItemVO = item as LayerItemVO;
 var iconBitmap:BitmapData = new BitmapData (14, 14, false, layerNode.color); //generated the bitmap based on the passed in color
 return iconBitmap; // wrong, because it needs to return Class, please help?
<mx:AdvancedDataGrid id="layer_datagrid" iconFunction="iconCallBack" >

Thanks for the reply.
Can you provide me some sample code as how to use the custom renderer for drawing the colored square in front of the item name?
Thanks.

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

So how do you declare an object?

Okay I have a program I'm trying to build that lets me navigate between menus...
Main Menu starts up:
(Unimportant)
Then it takes me to another Menu.
When this is over I want to go back:
 System.out.println("Select: ");
 System.out.println("1: to Return to the main menu");
 System.out.println("or");
 System.out.println("0 to Exit");
 if(input.nextInt()==1){
 main(); // <-- error here
 else if(input.nextInt()==0){
 System.exit(0);
 } It doesnt find the main method because I didn't declare it as an object at the top...
How do I do that?
Edited by: tark_theshark on Mar 30, 2008 5:24 AM

Nah, this has nothing to do with declaring an object, and you really don't want to do this. What you really want to do is to have a loop of some kind, say a while loop and have the loop repeat until the user presses "0". Something like so:
 public static void main(String[] args)
 boolean done = false;
 while (!done)
 if(input.nextInt() == 0)
 done = true;
 }Edited by: Encephalopathic on Mar 30, 2008 6:27 AM

How do you reference a created global variable in a report text field?

I have created a parameter using the Globaldim statement in a script file. when I reference this parameter in any other script file during the current DIAdem session the value is passed without any issue. Call the variable parmxyz where I assign it a value of 25.3
The help section under Globaldim mentions that global variables can be referenced in all panels, scripts, and dialogue boxes. When I try to insert a text box on a report page using the @@parmxyz@@ it returns NOVALUE where I expect to see 25.3 (for example).
When I substitute @@CurrDate@@ I do get the date, so I know the text box is valid. What am I doing wrong?
Steve M

Hello Steve!
It should work the way you did it. But their are some circumstances wich might prevent it:
You have reseted the global script engine. All variables will be lost.
You have a Sub with the same name in a command extension script. There is no warning ;-)
One Test you can make is to put in '@@TypeName(paramxy)@@' as the expression to see the variable type. You can also try a realy unique variable name. The last option is to use ItemInfoGet to get detailed infos about your variable.
Matthias
Matthias Alleweldt
Project Engineer / Projektingenieur
Twigeater?

How to you keep "active" pseudo-class, well, active?

By default, the a.link:active state is shown only for as long as the button on the mouse is pressed. When you let go, it reverts back to the regular a.link state.
How do I make the active state STICK? In other words, in a navigation menu that is permanently on the screen, I want the active state to stick permanently (until another button is pushed).
How is this accomplished?
Thanks!

Consider this code -
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<style type="text/css">
.foo {
color: red;
font-weight: bold;
</style>
</head>
<body>
<a id="num1" href="#" onclick="this.className='foo';document.getElementById('num2').className='';">Foo</a>
<a id="num2" href="#" onclick="this.className='foo';document.getElementById('num1').className='';">Foo</a>
</body>
</html>

How can you add data from a variable into a column in a data flow?

I need to populate a table with data from a variable. The data type of the variable is String. I'm running into issues doing it the way I am. I have variable
User:VariableName = "Some moderately sized string of data"
When I try to use a Derived Column Transformation Editor to insert the variable into the data flow as a new column, SSIS forces the Data Type to be Unicode String[DT_WSTR] and I can't change it. Additionally the length is 0 and I also can't change that.
When I run the package it errors with a truncation error. If the length is 0 then that makes sense but then why can't I change it to something that makes more sense?
What is the correct way to go about this?

Use advanced editor to change data type and length.
http://www.sureshjoshi.com/development/ssis-string-variables-in-derived-columns/

How do you declare on A class' variables as public?

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