Initializing an array

I have an array that needs to be initialized 1096 times, I
don't want to use a cfloop because I am looking for a better
performance. So I use a query that brings all the records that have
been initialized, the problem is if some of them hasn't been
initialized and I use some conditionals as CFIF the application
will throw an error because the specified position into the array
doesn't exist yet.
Here's my code.
<cfquery name="lista_espacios"
datasource="#Application.BD#">
SELECT ISNULL(id_espacio,0) as id_espacio, ruta, url, alt
FROM ESPACIOS
ORDER BY id_espacio
</cfquery>
<cfloop query="lista_espacios">
<cfset lista[lista_espacios.id_espacio][1] =
lista_espacios.id_espacio>
<cfset lista[lista_espacios.id_espacio][2] =
lista_espacios.ruta>
<cfset lista[lista_espacios.id_espacio][3] =
lista_espacios.url>
<cfset lista[lista_espacios.id_espacio][4] =
lista_espacios.alt>
</cfloop>
<cfset cont=1>
<cfif #lista[cont][1]# EQ #cont# ><a
href="#lista[cont][3]#" onclick="abrirURL(#lista[cont][1]#);"
target="_blank"><img style="border:0px" width="13"
height="13" src="#lista[cont][2]#" title="#lista[cont][4]#"
alt="#lista[cont][4]#" />
</a>
<cfelse>
<img width="13" height="13" src="img/bad.jpg" />
</cfif>
<cfset cont = #cont#+1>

quote:
Originally posted by:
Newsgroup User
If I understand your requirements you have a database that
has some
records, but not necessarily all 1096 records at this time.
You want to
pull out these records, but have a full set of 1096 records
even if some
of them do not yet exist in the dataset.
There are database tricks that can be used to create a record
set like
this. Hopefully somebody will chime in with the details. This
would
greatly simplify your processing after that.
There is not enough information to know what approach would
be most appropriate.
What is the database type? Also, do the existing records have
sequential values for idespacio, starting with 1?

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This looks incorrect:
MgErr CINRun(COpt *ConnectionOptions, LStrHandle *Number, SetHdl *RecordSet)
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typedef struct {
int32 Num1;
int32 Num2;
} TD2; // the cluster
typeDef struct {
int32 dimSize;
TD2 Cluster[1];
} TD1; // the array
typeDef TD1 **TD1Hdl; // handle to the array
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On this line:
DSSetHandleSize((*RecordSet), sizeof(int32) + (numRows * sizeof(Record)));
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The line:
(**RecordSet)->dimSize = numRows;
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Read the rules again on what is passed to CINs.
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THEN AND ONLY THEN add code to do whatever work needs doing.
Steve Bird
Culverson Software - Elegant software that is a pleasure to use.
Culverson.com
Blog for (mostly LabVIEW) programmers: Tips And Tricks

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Hello all,
I have declared an array of Vector with generics. The declaration is OK but the initialization gives me an error.
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x = new <Integer> Vector[4];When I compile that with Sun's javac compiler, I
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If you are not, it's a bug in the compiler you are
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Since my first long statement where I repeated the UIButton object 13 times worked, I thought this would work as well:
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Thanks
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import java.util.*;
public class MultArray {
public static void main(String[] args) {
int [][][] a1 = {
{1, 2, 3, },
{ 4, 5, 6, },
{ 4, 5, 6, },
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Does this become an improper initialization when one
goes from 2D to 3D?the way you have it written... yes.
here is the modified code that will compile.
note the nesting to the third level.
public static void main(String[] args) {
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      {{5,6},{7,8}},
      {{9},{10}}
}to break it down
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FBase Example[] = New FBase[200];
FBase[] Example;
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Alright -- I found one problem and solved it, but I still have another problem, pretty much the same problem I thought I was facing at the start, but now a little better defined.
At first, my class did not work even with one instantiation, let alone when I tried to instantiate an array of the class. I dound that I did not have a constructor, and I need a constructor if I am to create an instance of the class (I am learning ...). So, the class now looks like this:
public class FBase
String FName = "";
String FDate = "";
public FBase(){} // constructor
Now the following line of code works:
FBase FExample = new FBase();
I am able to use FExample.FName and FExample.FDate as proper variables.
My problem still exists when I try to instantiate an array of the class. In place of the above line of code, I have tried this:
FBase[] FExample = new FBase[200];
The compiler accepts it, but now FExample[0].FName and FExample[0].FDate are not recognized as proper variables, and nothing goes on when I try to use them in the program.
Any ideas?
Edited by: vanhoey on Jun 27, 2008 12:38 PM
Edited by: vanhoey on Jun 27, 2008 12:40 PM

Array elements keep returning to their initial value after being replaced

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I have a strange problem that probably has a simple answer.
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Thanks a Million,
Nick

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Is there any way to create a circular buffer using the INSERT ARRAY function?

I saw the example using the REPLACE ARRAY function, but it uses too much CPU power on my laptop. I'm using it for a very sensitive application and saw that the INSERT ARRAY function used much less CPU power.
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Thanks

I will try to answer this question to my best understanding. I apologize if I interpreted the question wrong.
You are using the "Insert Array" vi without wiring the index. By doing that, new elements will be added (appended) to the array.
If you just want to know the current index to stop your acquisition when the array reach certain amount of elements, then you can use the "Array Size" vi to keep track of the size of the growing array. Remember that Array Size = last index + 1 because the index start at zero.
A second option is that you may want to start over the array when it hits the maximum number of elements that you will allow. If that's the case, then you may want to re-initialize the array to a NULL state by stablishing a condition (for example, when the
size of the array is 1000, re-initialize). I provided an example attached to this message showing how this can be accomplished. In the example, an 1D array grows in size using the "Insert Array" vi and inserting a random number. When the array reach 4 elements, it is re-initialized. You can expand this example by saving the array first to a file or some other holder before re-initializing the array. The example is in LabVIEW 6.
Finally, if you want to replace the current values with new values, I think you do not have other choice but to use the "Replace Array" vi.
Hope this can be of help.
Regards;
Enrique Vargas
www.vartortech.com
Attachments:
array_example.vi ‏20 KB

Null pointer exception with an array?

import java.awt.*;
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/* Author: Mike Megally
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JTable table;
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data[i][2] = new Double(total[i].gettaxed());
as far as i know, they should be ok. i really need help on this!

You haven't initialized your Array elements...
Example:
for (int i = 0; i < years; i++){
total[i] = new Yearly(); // add this
total.setyear(i);
total[i].settaxed(1);
total[i].setdeferred(1)
When you say "Yearly[] total = new Yearly[10]", you're just creating a holder for 10 Yearly objects. There won't be any Yearlies (haha) until you create them...

Initializing an array

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