How to get number of rows and columns in a two dimensional array ?

Hello,
What would be the simplest way to get number of rows and columns in a two dimensional array represented as integers ?
I'm looking for another solution as For...Each loop in case of large arrays.
Regards,
Petri

Hi Petri,
See a attached txt file for obtaining two arrays with upper and lower index values
Regards
Ray
Regards
Ray Farmer
Attachments:
Get2DArrayIndex.txt ‏2 KB

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How to determine rows and columns of a two dimensional array at runtime?

Dear All,
I am using Java 5.
I have defined an array as follows:
int[][] arr= { {1,2,3}, {4,5,6}};
Using the reference of arr, how can i get the rows (2) and columns (3) of this array at run-time?
Thanks in advance.
-Sameer

rows and columns are simply the way you visualize the array.
int[][] arr= { {1,2,3}, {4,5,6}};
in above code
if you access array element as arr[x][y]
then x can have 0 or 1 where y can have 0,1 or 2
*/

How to get number of rows return in SELECT query

i'm very new in java, i have a question:
- How to get number of rows return in SELECT query?
(i use SQL Server 2000 Driver for JDBC and everything are done, i only want to know problems above)
Thanks.

make the result set scroll insensitve, do rs.last(), get the row num, and call rs.beforeFirst(), then you can process the result set like you currently do.
         String sql = "select * from testing";
         PreparedStatement ps =
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         ResultSet rs = ps.executeQuery();
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NOTE: Ugly, but does the trick.

Setting number of rows and columns

How do I set the number of rows and columns of a table, say 2348 rows by 3 columns?
Then how do I quickly select the last row?
Also, if I enter a formula in row 1 column 2, how do I quickly copy that formula down to row 1435, or to the end of the column? Dragging seems slow and awkward.

I wish to add a few words to Jerrold responce.
gjf12 wrote:
How do I set the number of rows and columns of a table, say 2348 rows by 3 columns?
Then how do I quickly select the last row?
Also, if I enter a formula in row 1 column 2, how do I quickly copy that formula down to row 1435, or to the end of the column? Dragging seems slow and awkward.
The process that you describe is inefficient.
The efficient one is :
create a table
enter the formulas in a single row
delete the rows below.
Now, each newly inserted row will contain the formulas.
From my point of view, it's when this is done that it will be interesting to apply a script adding rows.
Here is a script inserting rows.
--[SCRIPT insertRows]
Enregistrer le script en tant que Script : insertRows.scpt
déplacer le fichier ainsi créé dans le dossier
<VolumeDeDémarrage>:Users:<votreCompte>:Library:Scripts:Applications:Numbers:
Il vous faudra peut-être créer le dossier Numbers et peut-être même le dossier Applications.
Sélectionner une cellule au-dessous de laquelle vous voulez insérer des lignes.
menu Scripts > Numbers > insertRows
Le script vous demande le nombre de lignes désiré puit insère celles-ci.
--=====
L'aide du Finder explique:
L'Utilitaire AppleScript permet d'activer le Menu des scripts :
Ouvrez l'Utilitaire AppleScript situé dans le dossier Applications/AppleScript.
Cochez la case "Afficher le menu des scripts dans la barre de menus".
--=====
Save the script as a Script: insertRows.scpt
Move the newly created file into the folder:
<startup Volume>:Users:<yourAccount>:Library:Scripts:Applications:Numbers:
Maybe you would have to create the folder Numbers and even the folder Applications by yourself.
Select a cell below which you want to insert rows.
menu Scripts > Numbers > insertRows
The script ask you the number of rows to insert then it does the required insertion.
--=====
The Finder's Help explains:
To make the Script menu appear:
Open the AppleScript utility located in Applications/AppleScript.
Select the "Show Script Menu in menu bar" checkbox.
Save this script as a … Script in the "Folder Actions Scripts" folder
<startupVolume>:Library:Scripts:Folder Action Scripts:
--=====
Yvan KOENIG (VALLAURIS, France)
2010/01/13
--=====
on run
set defaultValue to 100
if my parleAnglais() then
set myInteger to my askAnumber("Insert how many rows ?", defaultValue, "i")
else
set myInteger to my askAnumber("Combien de lignes voulez-vous insérer ?", defaultValue, "i")
end if
set {dName, sName, tName, rname, rowNum1, colNum1, rowNum2, colNum2} to my getSelParams()
tell application "Numbers" to tell document dName to tell sheet sName to tell table tName
repeat myInteger times
add row below row rowNum2
end repeat
end tell
end run
--=====
on getSelParams()
local r_Name, t_Name, s_Name, d_Name, col_Num1, row_Num1, col_Num2, row_Num2
set {d_Name, s_Name, t_Name, r_Name} to my getSelection()
if r_Name is missing value then
if my parleAnglais() then
error "No selected cells"
else
error "Il n'y a pas de cellule sélectionnée !"
end if
end if
set two_Names to my decoupe(r_Name, ":")
set {row_Num1, col_Num1} to my decipher(item 1 of two_Names, d_Name, s_Name, t_Name)
if item 2 of two_Names = item 1 of two_Names then
set {row_Num2, col_Num2} to {row_Num1, col_Num1}
else
set {row_Num2, col_Num2} to my decipher(item 2 of two_Names, d_Name, s_Name, t_Name)
end if
return {d_Name, s_Name, t_Name, r_Name, row_Num1, col_Num1, row_Num2, col_Num2}
end getSelParams
--=====
set {rowNumber, columnNumber} to my decipher(cellRef,docName,sheetName,tableName)
apply to named row or named column !
on decipher(n, d, s, t)
tell application "Numbers" to tell document d to tell sheet s to tell table t to return {address of row of cell n, address of column of cell n}
end decipher
--=====
set { d_Name, s_Name, t_Name, r_Name} to my getSelection()
on getSelection()
local _, theRange, theTable, theSheet, theDoc, errMsg, errNum
tell application "Numbers" to tell document 1
repeat with i from 1 to the count of sheets
tell sheet i
set x to the count of tables
if x > 0 then
repeat with y from 1 to x
try
(selection range of table y) as text
on error errMsg number errNum
set {_, theRange, _, theTable, _, theSheet, _, theDoc} to my decoupe(errMsg, quote)
return {theDoc, theSheet, theTable, theRange}
end try
end repeat -- y
end if -- x>0
end tell -- sheet
end repeat -- i
end tell -- document
return {missing value, missing value, missing value, missing value}
end getSelection
--=====
on decoupe(t, d)
local l
set AppleScript's text item delimiters to d
set l to text items of t
set AppleScript's text item delimiters to ""
return l
end decoupe
--=====
Asks for an entry and checks that it is an floating number
set myInteger to my askAnumber(Prompt, DefaultValue, "i")
set myFloating to my askAnumber(Prompt, DefaultValue, "f")
on askAnumber(lPrompt, lDefault, ForI)
local lPrompt, lDefault, n
tell application (path to frontmost application as string)
if ForI is "f" then
set n to text returned of (display dialog lPrompt & " (" & (1.2 as text) & ")" default answer lDefault as text)
try
set n to n as number (* try to convert the value as an number *)
return n
on error
if my parleAnglais() then
display alert "The value needs to be a floating number." & return & "Please try again."
else
display alert "La valeur saisie doit être un nombre décimal." & return & "Veuillez recommencer."
end if
end try
else
set n to text returned of (display dialog lPrompt default answer lDefault as text)
try
set n to n as integer (* try to convert the value as an integer *)
return n
on error
if my parleAnglais() then
display alert "The value needs to be an integer." & return & "Please try again."
else
display alert "La valeur saisie doit être un nombre entier." & return & "Veuillez recommencer."
end if
end try -- 1st attempt
end if -- ForI…
end tell -- application
Here if the first entry was not of the wanted class
second attempt *)
tell application (path to frontmost application as string)
if ForI is "f" then
set n to text returned of (display dialog lPrompt & " (" & (1.2 as text) & ")" default answer lDefault as text)
try
set n to n as number (* try to convert the value as an number *)
return n
on error
end try
else
set n to text returned of (display dialog lPrompt default answer lDefault as text)
try
set n to n as integer (* try to convert the value as an integer *)
return n
on error
end try -- 1st attempt
end if -- ForI…
end tell -- application
if my parleAnglais() then
error "The value you entered was not numerical !" & return & "Goodbye !"
else
error "La valeur saisie n’est pas numérique !" & return & "Au revoir !"
end if
end askAnumber
--=====
on parleAnglais()
local z
try
tell application "Numbers" to set z to localized string "Cancel"
on error
set z to "Cancel"
end try
return (z is not "Annuler")
end parleAnglais
--=====
--[/SCRIPT]
Yvan KOENIG (VALLAURIS, France) mercredi 13 janvier 2010 12:43:34

Maximum number of rows and columns in data form

Hi,
I wanted to know if there is a limitation to the number of rows and columns that can be displayed in a data form, in Hyperion planning 11.1.2.1 ?
And what would be the most appropriate number of rows and columns to be included for optimum performance.
Thanks.

Hi,
While its a fun fact to determine how much one can stuff into a web form, the reality is: how much can a user reasonably consume in a web form?
And what would be the most appropriate number of rows and columns to be included for optimum performance
You will find that the answer to this is by "what design makes a web form most usable?" And no, the users don't really know what they want from a design perspective, they see it in their head, but usually what they ask for is something that would look entirely different (huge).
The next thing to think about is the use of member selection functions in the page axis. IDescendants(Entity) in a dropdown could cause issues just as easily as too many rows - and again make the drop down unusable for a user.
If your question is a bit more technical, then consider this (somewhat oversimplified): Web forms are constructed by a process on the server. Objects are created based on the form's definition and used by the process that builds the form. The process uses Cartesian looping (lots of iterations) to construct the form cell by cell, starting at the top left and finishing up in the bottom right. If the form has a million cells on it, then the loop and all the code within it runs a million times. The capability of the server has a lot to do with how well it can handle this request, and how many it can handle at one time.
The result of this is gobs of HTML and JavaScript. All of this has to be sent over a network to the requesting client. The client starts receiving the web page code and has to render it in the browser and run the JavaScript. The ability to do this is limited by the browser, the OS, and the hardware that the client is running on.
And that's just rendering the page for use.
Now it has to be interacted with on the client machine, and changes parsed, packaged, and sent back to the server.
So the technical answer is, there can be many limitations to how many rows and columns a data form can have - none of which can truly be anticipated by anyone. This is why I put the part about usability first in this post.
Regards,
Robb Salzmann

How to display number of rows as columns in a select statement? This is on

How to display number of rows as columns in a select statement? This is on 10g R2.
Thanks,
R

For the current (ie. row 1 of 100)
row_number over (order by -pick_a_column_set) as rnfor the total number of columns returned in your query
count(*) over() as total_count

How do I delete multiple rows and columns in an image?

I am looking into how digital SLRs extract video data from a CMOS sensor. To give an example, the GH1 from Panasonic can record video at 1920 x 1080 from a 12 MPixel sensor that, say, is 4000 horizontal x 3000 vertical. How they do that seems to be not in the public domain, but there have been a few guesses (see http://www.dvxuser.com/V6/showthread.php?t=206797 and http://luminous-landscape.com/forum/index.php?showtopic=38713).
One approach would be to simply read every second row of sensor pixels (1500 rows read from the original 3000) and once you have those in memory, delete every second column (2000 columns left). You would end up with a 2000 x 1500 image which could then be resampled to 1920 x 1080.
I'd like to simulate what the camera appears to be doing, by generating a 4000 x 3000 test image and then asking Photoshop CS4 to delete the appropriate rows and columns. It may not necessarily be every second row; the Canon 5DMk11 appears to read every third row, so I may need to delete two out of every three rows.
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4. Click OK and the image shoould now consist of three vertical white strips and three vertical Green-Red-Blue stripes.
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Division by N
Only rows and columns 2, 2+N, 2+2N, 2+3N... remain.
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How to create table with rows and columns in the layout mode?

One of my friends advised me to develop my whole site on the
layout mode as its better than the standard as he says
but I couldnot make an ordinary table with rows and columns
in th layout mode
is there any one who can tell me how to?
thanx alot

Your friend is obviously not a reliable source of HTML
information.
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
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news:f060vi$npp$[email protected]..
> One of my friends advised me to develop my whole site on
the layout mode
> as its
> better than the standard as he says
> but I couldnot make an ordinary table with rows and
columns in th layout
> mode
> is there any one who can tell me how to?
> thanx alot
>

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How to get number of rows and columns in a two dimensional array ?

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