Creating variables using for loop

is there any way in java to create a variable called "xi" using a for loop say:
for (int i =0; i < 1000000;i++){
int xi;
}so I want to create a million of different variable names based on the i... I know this may be a stupid question

I don't think there is a way to do this. More importantly why do you want to do this? If you dynamically generate 1 million variables, then how will the rest of your program refer to them? Maybe what you need is some sort of collection.

Similar Messages

How do i sweep two voltage at the same time by using for loop ?

Hello, Can anyone help me on this topic ?
My problem is to sweep Vds and Vgs as same time vs Id in MOSFET by using for loop. I also use the Agilent power supply source. Let me tell a litle bit about what i'm doing. For different value of Vds, i will get Vgs vs Id curve. (The x axis is Vgs, the y-axis is Id).
I started to create two for-loop, the inner to sweep Vgs, and the outer one to sweep Vds. My problem is don't know how to connect all the wire in the for loop.
In the for loop i saw N, i icon. Suppose I have the two variable for Vgs such as Vgs start and Vgs_stop. Should the Vgs_start( or Vgs_stop) be connected to N or leave it in the for_loop ?
for example: I want to sweep Vgs from 0(for Vgs_start) to 5(Vgs_strop) V, and the step increment is .5V how do i connect these variables in the for loop ?
Thank you for your time
Ti Nguyen

It is easier to use a while loop. Dennis beat me to the punch. Here is my solution:
You can remove the flat sequence structure if you use Error In and Error Out to ensure the execution flow will occur in the proper order. Be sure to include the delay time in the loop so that your vi doesn't hog all the CPU time.
Message Edited by tbob on 10-17-2005 01:00 PM
- tbob
Inventor of the WORM Global
Attachments:
RampVoltage.PNG ‏8 KB

Will using for loop decrease the performance

Hi,
Will using for loop with a query decrease the performance.
for r_row in (select * from table) Loop
end loop.
This is done inside another for loop, most of the cases it returns only one value.
will it decrease the peformance of the procedure.
kindly advice.......
Regards,
Balu

user575682 wrote:
Will using for loop with a query decrease the performance.
for r_row in (select * from table) Loop
end loop.
This is done inside another for loop, most of the cases it returns only one value.
will it decrease the peformance of the procedure.Perhaps it is better to understand just what this PL/SQL loop construct does.
PL/SQL is two languages. It is PL (programming logic code) like Pascal or C or Java. You can use a 2nd language inside it called SQL. The PL engine is clever enough to recognise when the 2nd language is used. And it compiles all the stuff that is needed for the PL engine to call the SQL engine, pass data to the SQL engine and get data back, etc. (compare this with the complexity of using the SQL language in Pascal or C or Java).
So what does that loop do? The PL engine recognises the SQL SELECT statement. It creates an implicit cursor by calling the SQL engine to parse it (hopefully a soft parse) and then execute it.
As part of the PL loop, the PL engine now calls the SQL engine to fetch the data (rows) from the cursor. With 10g and later, the PL engine is smart enough to use implicit bulk processing.
Prior to 10g it used to fetch a row from the SQL engine, do the loop, fetch the next row, do the loop, etc. This means if there is a 1000 rows to fetch, it will call the SQL engine a 1000 times.
With 10g and later it will fetch a 100 rows, store that in an internal buffer and then do the loop a 100 times. With a 1000 rows to fetch, it now only requires 10 bulk fetches instead of a 1000 single row fetches.
These fetches require a context switch - as the PL engine has to step out and into the SQL engine and back, to fetch a row. This is an overhead and thus can become slow the more context switching there is.
And this is the basics for this loop (and most other cursor loops) construct in PL/SQL.
The ideal is to reduce the number of context switches. This is an overhead that can impact on performance.
What about using a loop within a loop. Also "bad". This uses the outer loop to fetch data. This data is then used to drive the fetch in the inner or nested loop. So the outside loop pulls data from the SQL engine into PL variables. The inside loop pushes that very same data back to the SQL engine.
Why? It would have been a lot faster no to pull and push that data between the loops using PL.
It will be a lot faster doing it via SQL only. Write both loops as a single SQL statement and have the SQL engine directly drive these loops itself. This is called a JOIN in SQL. And the SQL engine can do it not only faster, but it has some froody algorithms that can be used that are even faster than a nested loop process (called merge joins, hash joins, etc).
Bottom line. Maximise SQL. Minimise PL.*
Do as much of your data crunching in SQL as possible. SQL is the best and fastest "place" to process data. Not PL (or Pascal/C/Java).

How to iterate List in jsp without using for loop

Hi,
I am developing a small application is struts. I have one ActionForm file which contain one List like getEmployeeDetailsList(). When I am using this list in jsp page for displaying data. I want to display it as employee name, employee address, employee designation and employee contact no. These all fields are available in the above list. Now what is the problem is that I am using logic:iterate method to iterate data. but this is not sufficient to display all records in order. like employee name should be in one table and they can be vertical not horizontal, employee address is also should be seperate. and same thing with employee designation and contact no. I don't want to use for loop to iterate this list. Please tell me about optionCollection for this list. only employee names should be one drop down and employee designation is also in another drop down.
Please help. It is really urgent.
Any help will be appreciated.
Thanks in advance.
Manveer

I'm not sure what you problem is, but one thing you can do is to create a new class and pass the list into its constructor (and store it as a private variable). Then, provide a set of functions in the new class that extracts data from the list and returns it in a form that the various parts of the JSP page wants. For example, one function may return a sorted list of just the employee names. In this way, all the business logic for formatting the data into a form that JSP page likes is hidden inside the new class.

Procedure to insert same record for 30 times in a table using for loop

Hi,
I need to insert a record in a table which has to be iterated using for loop

I think you are in the wrong forum. You can do that like this:
CREATE TABLE my_table (my_column NUMBER);
BEGIN
   FOR i IN 1 .. 30
   LOOP
      INSERT INTO my_table
                  (my_column
           VALUES (i
   END LOOP;
END;
/Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.apress.com/9781430235125
http://apex.oracle.com/pls/apex/f?p=31517:1
http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494
-------------------------------------------------------------------

Build 1D array using for loop

Hi guys,
I am testing out array. How do I create a 1D array of x-y using for loop?

Nextal wrote:
I am testing out array. How do I create a 1D array of x-y using for loop?
OK, first of all you did not say what the array should contain. If you want an array that has one array element for each iteration of the while loop, you need to first think a bit harder. Your outer loop has no wait, thus it will spin millions of times per second and you will run out of memory soon, no matter how much memory you have. How many times should the while loop iterate? If you know the number before the program starts, you would use a FOR loop and autoindex at the loop boundary.
If you want to use a whiile loop, you need a mechanism to keep the array size reasonable. For small final arrays, you can just build the array in a shift register if you need it updated as it happens. If you only need the array after the loop stops, you can autoindex at the right loop boundary.
In any case, you should take a step back and decide what you really want. Currently the specifications are very vague and unreasonable.
LabVIEW Champion . Do more with less code and in less time .

Incrementing var_(x) to var_(y) using FOR loop

How can i keep incrementing var_(x) to var(y) using FOR loop.
I want variables var_1 to var_3 displayed. So I tried the below mentioned method. But i got error.
SQL> set serveroutput on
declare
     var_1 number;
     var_2 number;
     var_3 number;
    begin
      var_1:=884;
      var_2:=646;
      var_3:=213;
      for i in 1..3 loop
      dbms_output.put_line(var_(i));
      end loop;
   end;
SQL> /
     dbms_output.put_line(var_(i));
ERROR at line 10:
ORA-06550: line 10, column 26:
PLS-00201: identifier 'VAR_' must be declared
ORA-06550: line 10, column 5:
PL/SQL: Statement ignored

Thank you Padders. I have a complex requirement involving an UPDATE. To avoid unnecessary lines/repeat of UPDATE statements i somehow have to increase the variable number from var_(x) to var_(y)

Repeating nodes using FOR loop but when concating XML string then concating only last iteration of FOr loop ??

I stuck with a problem that I am using FOR loop for generating repeating nodes.
Now when I concat the generated node in the main node then I got only last iteration of that FOR loop.
can anybody suggest me a way to handle this error....
FOR i IN 1..pl_phone_tab.Count
LOOP
SELECT xmlelement("Phone"
                                    ,xmlelement("PHONETYPE",xmlattributes('01' AS "dmnADRP_PHONETYPE"),pl_phone_tab(i).p_phtype_tab)
                     ,xmlelement("PHONENUM",pl_phone_tab(i).p_phnum_tab)
                     ,xmlelement("PRIMARY_CONTACT",pl_phone_tab(i).p_prcon_tab)
INTO p_phone_xml
FROM dual; END LOOP;
SELECT xmlelement("PhoneInfo"
                       ,xmlconcat(p_phone_xml))
INTO p_phone_info_xml
FROM dual;
here I am getting only one node but there has to be two nodes for PHONE node

Not that I'm encouraging you but here are two standalone examples explaining how to do what you want :
1) Loop through the input collection and append each node to its target container :
SQL> declare
2
3    type t_emp_tab is table of scott.emp%rowtype;
4
5    emp_tab       t_emp_tab;
6    emp_info_xml xmltype;
7    emp_xml       xmltype;
8
9 begin
10
11    -- filling emp_tab with data
12    select e.*
13    bulk collect into emp_tab
14    from scott.emp e
15    where e.deptno = 10;
16
17    emp_info_xml := xmltype('<EmpInfo/>');
18
19    -- looping through emp collection and appending to EmpInfo element
20    for i in 1 .. emp_tab.count loop
21      select appendchildxml(
22               emp_info_xml
23             , '/*'
24             , xmlelement("Emp"
25               , xmlattributes(emp_tab(i).empno as "id")
26               , xmlforest(
27                   emp_tab(i).ename as "Name"
28                 , emp_tab(i).job as "Job"
29                 )
30               )
31             )
32      into emp_info_xml
33      from dual;
34    end loop;
35
36    dbms_output.put_line(emp_info_xml.getclobval(1,2));
37
38 end;
39 /
<EmpInfo>
<Emp id="7782">
    <Name>CLARK</Name>
    <Job>MANAGER</Job>
</Emp>
<Emp id="7839">
    <Name>KING</Name>
    <Job>PRESIDENT</Job>
</Emp>
<Emp id="7934">
    <Name>MILLER</Name>
    <Job>CLERK</Job>
</Emp>
</EmpInfo>
PL/SQL procedure successfully completed
2) Build a secondary collection of XML nodes and use XMLAgg to aggregate them in one go :
SQL> declare
2
3    type t_emp_tab is table of scott.emp%rowtype;
4
5    emp_tab       t_emp_tab;
6    emp_info_xml xmltype;
7    emp_xml_tab   xmlsequencetype := xmlsequencetype();
8
9 begin
10
11    -- filling emp_tab with data
12    select e.*
13    bulk collect into emp_tab
14    from scott.emp e
15    where e.deptno = 10;
16
17    -- looping through emp collection and appending to the collection of Emp nodes
18    for i in 1 .. emp_tab.count loop
19
20      emp_xml_tab.extend;
21
22      select xmlelement("Emp"
23             , xmlattributes(emp_tab(i).empno as "id")
24             , xmlforest(
25                 emp_tab(i).ename as "Name"
26               , emp_tab(i).job as "Job"
27               )
28             )
29      into emp_xml_tab(i)
30      from dual;
31
32    end loop;
33
34    select xmlelement("EmpInfo", xmlagg(t.column_value))
35    into emp_info_xml
36    from table(emp_xml_tab) t ;
37
38    dbms_output.put_line(emp_info_xml.getclobval(1,2));
39
40 end;
41 /
<EmpInfo>
<Emp id="7782">
    <Name>CLARK</Name>
    <Job>MANAGER</Job>
</Emp>
<Emp id="7839">
    <Name>KING</Name>
    <Job>PRESIDENT</Job>
</Emp>
<Emp id="7934">
    <Name>MILLER</Name>
    <Job>CLERK</Job>
</Emp>
</EmpInfo>
PL/SQL procedure successfully completed
Both solutions give the same output.
Test them both and see which one fits better into your scenario.

How do I use For loop to check each node and import them to a new document?

In my function I would like to use a For loop to get all the statutes (xml) inside the object
objXmlBcaResponseDoc. In my case there are 2 statutes. I would like the output to look like the one I have posted here below. I am not sure how to do the For loop. The commented For loop is from another function but it is not working inside
this function.
The output is added into the **objXmlResponseMessageDoc** object and should look like this with 2 statutes (ns1:Statute) and a totalCount=2
<BasicSearchQueryResponse xmlns="http://crimnet.state.mn.us/mnjustice/statute/service/4.0">
<StatutesXml>
<Statutes runType="Request" runDateTime="2015-03-17T10:23:04" totalCount="2">
<ns1:Statute xmlns:ns1="http://crimnet.state.mn.us/mnjustice/statute/messages/4.0">
<StatuteId xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">8471</StatuteId>
<Chapter xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">60</Chapter>
<Section xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">55</Section>
<Subdivision xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0"/>
</ns1:Statute>
<ns1:Statute>
<StatuteId xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">9722</StatuteId>
<Chapter xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">90</Chapter>
<Section xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">25</Section>
<Subdivision xsi:nil="true" xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0"/>
</ns1:Statute>
</Statutes>
</StatutesXml>
</BasicSearchQueryResponse>
My xml doc is found inside objXmlBcaResponseDoc Here is xml inside
objXmlBcaResponseDoc object
<BasicSearchQueryResponse xmlns="http://crimnet.state.mn.us/mnjustice/statute/service/4.0">
<ns1:Statutes xmlns:ns1="http://crimnet.state.mn.us/mnjustice/statute/messages/4.0">
<ns1:Statute>
<StatuteId xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">8471</StatuteId>
<Chapter xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">60</Chapter>
<Section xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">55</Section>
<Subdivision xsi:nil="true" xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0"/>
</ns1:Statute>
<ns1:Statute>
<StatuteId xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">9722</StatuteId>
<Chapter xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">90</Chapter>
<Section xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0">25</Section>
<Subdivision xsi:nil="true" xmlns="http://crimnet.state.mn.us/mnjustice/statute/4.0"/>
</ns1:Statute>
</BasicSearchQueryResponse>
Here is my function
Function GetStatutesByChapter(ByVal aobjXmlGetStatuteRequestNode As XmlNode, ByVal aobjXMLNameSpaceManager As XmlNamespaceManager, ByVal aobjBroker As ServiceCatalog.Library.v4.Broker) As XmlDocument
Dim objXmlRequestMessageDoc As XmlDocument
Dim objXmlResponseMessageDoc As XmlDocument
Dim intCount As Integer
aobjBroker.PostMessageWarehouseInformationalMessage("Chapter found.", 1)
objXmlResponseMessageDoc = New XmlDocument
'Add the first element into the document GetStatuteByChapter with its namespace
objXmlResponseMessageDoc.AppendChild(objXmlResponseMessageDoc.CreateElement("BasicSearchQueryResponse", "http://crimnet.state.mn.us/mnjustice/statute/service/4.0"))
'Build the initial response document
objXmlResponseMessageDoc = New XmlDocument
'Add the first element into the document GetStatutesResponse with its namespace
objXmlResponseMessageDoc.AppendChild(objXmlResponseMessageDoc.CreateElement("GetStatutesResponse", "http://www.courts.state.mn.us/StatuteService/1.0"))
'Add a child node to the GetStatutesResponse node
objXmlResponseMessageDoc.SelectSingleNode("ss:GetStatutesResponse", aobjXMLNameSpaceManager).AppendChild(objXmlResponseMessageDoc.CreateElement("StatutesXml", "http://www.courts.state.mn.us/StatuteService/1.0"))
objXmlResponseMessageDoc.SelectSingleNode("ss:GetStatutesResponse/ss:StatutesXml", aobjXMLNameSpaceManager).AppendChild(objXmlResponseMessageDoc.CreateElement("Statutes", "http://www.courts.state.mn.us/StatuteService/1.0"))
'Convert the node Statutes into an element and set the runType attribute (runType="Request") by adding it's value Request
CType(objXmlResponseMessageDoc.SelectSingleNode("ss:GetStatutesResponse/ss:StatutesXml/ss:Statutes", aobjXMLNameSpaceManager), System.Xml.XmlElement).SetAttribute("runType", "Request")
'Convert the node Statutes into an element and set the attribute (runDateTime="2015-03-05T10:29:40") by adding it
CType(objXmlResponseMessageDoc.SelectSingleNode("ss:GetStatutesResponse/ss:StatutesXml/ss:Statutes", aobjXMLNameSpaceManager), System.Xml.XmlElement).SetAttribute("runDateTime", Format(Now, "yyyy-MM-ddTHH:mm:ss"))
'Create the BCA request message
objXmlRequestMessageDoc = New XmlDocument
objXmlRequestMessageDoc.AppendChild(objXmlRequestMessageDoc.CreateElement("ns:BasicSearchQueryRequest", aobjXMLNameSpaceManager.LookupNamespace("ns")))
objXmlRequestMessageDoc.SelectSingleNode("ns:BasicSearchQueryRequest", aobjXMLNameSpaceManager).AppendChild(objXmlRequestMessageDoc.CreateElement("ns1:BasicSearchCriteria", aobjXMLNameSpaceManager.LookupNamespace("ns1")))
objXmlRequestMessageDoc.SelectSingleNode("ns:BasicSearchQueryRequest/ns1:BasicSearchCriteria", aobjXMLNameSpaceManager).AppendChild(objXmlRequestMessageDoc.CreateElement("ns2:Chapter", aobjXMLNameSpaceManager.LookupNamespace("st")))
objXmlRequestMessageDoc.SelectSingleNode("ns:BasicSearchQueryRequest/ns1:BasicSearchCriteria", aobjXMLNameSpaceManager).AppendChild(objXmlRequestMessageDoc.CreateElement("ns2:Section", aobjXMLNameSpaceManager.LookupNamespace("st")))
objXmlRequestMessageDoc.SelectSingleNode("ns:BasicSearchQueryRequest/ns1:BasicSearchCriteria", aobjXMLNameSpaceManager).AppendChild(objXmlRequestMessageDoc.CreateElement("ns2:Subdivision", aobjXMLNameSpaceManager.LookupNamespace("st")))
'Uncomment last working section below
objXmlRequestMessageDoc.DocumentElement.SelectSingleNode("ns1:BasicSearchCriteria/st:Chapter", aobjXMLNameSpaceManager).InnerText = aobjXmlGetStatuteRequestNode.SelectSingleNode("ss:Statute/ss:Chapter", aobjXMLNameSpaceManager).InnerText
'check if there is a section and or subdivision if it is there then set the value
If Not (aobjXmlGetStatuteRequestNode.SelectSingleNode("ss:Statute/ss:Section", aobjXMLNameSpaceManager) Is Nothing) Then
objXmlRequestMessageDoc.DocumentElement.SelectSingleNode("ns1:BasicSearchCriteria/st:Section", aobjXMLNameSpaceManager).InnerText = aobjXmlGetStatuteRequestNode.SelectSingleNode("ss:Statute/ss:Section", aobjXMLNameSpaceManager).InnerText
End If
If Not (aobjXmlGetStatuteRequestNode.SelectSingleNode("ss:Statute/ss:Subdivision", aobjXMLNameSpaceManager) Is Nothing) Then
objXmlRequestMessageDoc.DocumentElement.SelectSingleNode("ns1:BasicSearchCriteria/st:Subdivision", aobjXMLNameSpaceManager).InnerText = aobjXmlGetStatuteRequestNode.SelectSingleNode("ss:Statute/ss:Subdivision", aobjXMLNameSpaceManager).InnerText
End If
'check if there is a section and or subdivision if it is there then set the value
aobjBroker.PostMessageWarehouseSnapshot(objXmlRequestMessageDoc.OuterXml, "Request Message", 1)
'Call the BCA service
intCount = 0
'This is where I want to use a For loop to check for the statutes found using the Chapter
'Loop through each Id
'For Each objXmlStatuteIdNode In aobjXmlGetStatuteRequestNode.SelectNodes("ss:Statute/ss:StatuteId/ss:Id[string-length(.)>0]", aobjXMLNameSpaceManager)
'Create the BCA request message
'objXmlRequestMessageDoc = New XmlDocument
'objXmlRequestMessageDoc.AppendChild(objXmlRequestMessageDoc.CreateElement("ns:SingleStatuteRequest", aobjXMLNameSpaceManager.LookupNamespace("ns")))
'objXmlRequestMessageDoc.SelectSingleNode("ns:SingleStatuteRequest", aobjXMLNameSpaceManager).AppendChild(objXmlRequestMessageDoc.CreateElement("ns:statuteId", aobjXMLNameSpaceManager.LookupNamespace("ns")))
'objXmlRequestMessageDoc.DocumentElement.SelectSingleNode("ns:statuteId", aobjXMLNameSpaceManager).InnerText = objXmlStatuteIdNode.InnerText aobjBroker.PostMessageWarehouseSnapshot(objXmlRequestMessageDoc.OuterXml, "Request Message", 1)
'intCount = intCount + 1
'objXmlBcaResponseDoc = New XmlDocument
'File name is BCASearchQueryResponse.xml
'objXmlBcaResponseDoc.Load("\\j00000swebint\mscapps\deve\appfiles\temp\BCASearchQueryResponse.xml")
'objXmlResponseMessageDoc.DocumentElement.SelectSingleNode("ss:StatutesXml/ss:Statutes", aobjXMLNameSpaceManager).AppendChild(objXmlResponseMessageDoc.ImportNode(objXmlBcaResponseDoc.DocumentElement.SelectSingleNode("ns1:Statute", aobjXMLNameSpaceManager), True))
'Next
'Count how many Statute nodes found
CType(objXmlResponseMessageDoc.SelectSingleNode("ss:BasicSearchQueryResponse/ss:StatutesXml/ss:Statutes", aobjXMLNameSpaceManager), System.Xml.XmlElement).SetAttribute("totalCount", CStr(intCount))
Return objXmlResponseMessageDoc
End Function

What is XPath and what does it do that you're impressed with?
Yes, I see your link, but give me the abbreviated elevator speech on what it is please. It has me curious.
http://searchsoa.techtarget.com/definition/XPath
http://www.techrepublic.com/article/easily-navigate-xml-with-vbnet-and-xpath/
http://www.techrepublic.com/article/using-xpath-string-functions-in-xslt-templates/
The way that all this is being used by me now on a project is the HTML controls on the screen are built by XML not only about what the controls are and their attributes, but the data from from the database is XML too with both going through transfermations
vis XSLT as the HTML controls are built dynamically by XML data for the controls and the XML database data with decision being made in the transfermation on the fly.
There are many usages with Xpath not just this one I am talking about with Xpath. You can do the same kind of thing with XAML and WPF forms as they are dynamically built. But it goes well beyond what I am talking about and the usage of Xpath. Xpath 3.0
is the latest version.
http://www.balisage.net/Proceedings/vol10/html/Novatchev01/BalisageVol10-Novatchev01.html
Thanks - I'll look into that at some point.
Still lost in code, just at a little higher level.

How can I make a Java program pyramid using for loops??

Hi guys, so I'm stuck with my program here... I don't know how to make it work, and i've been trying really hard.. So now i give up and need some guidance.. Please help me here.
Your job in this assignment is to write programs to solve each of these six problems.
1. Write a GraphicsProgram subclass that draws a pyramid consisting of bricks
arranged in horizontal rows, so that the number of bricks in each row decreases by
one as you move up the pyramid, as shown in the following sample run:
The pyramid should be centered at the bottom of the window and should use
constants for the following parameters:
BRICK_WIDTH The width of each brick (30 pixels)
BRICK_HEIGHT The height of each brick (12 pixels)
BRICKS_IN_BASE The number of bricks in the base (14)
The numbers in parentheses show the values for this diagram, but you must be able
to change those values in your program.
* File: Pyramid.java
* Name:
* Section Leader:
* This file is the starter file for the Pyramid problem.
* It includes definitions of the constants that match the
* sample run in the assignment, but you should make sure
* that changing these values causes the generated display
* to change accordingly.
import acm.graphics.*;
import acm.program.*;
import java.awt.*;
public class Pyramid extends GraphicsProgram {
/** Width of each brick in pixels */
     private static final int BRICK_WIDTH = 30;
/** Width of each brick in pixels */
     private static final int BRICK_HEIGHT = 12;
/** Number of bricks in the base of the pyramid */
     private static final int BRICKS_IN_BASE = 14;
     public void run() {
}That's my problem.

yo, so i figure out my for loop. my code is very very very very ugly, so dont laugh i know its ugly! just wanna ask for some tips
public void run() {
          int initBrick = 30;
          int initPlacement = (getWidth() - BRICK_WIDTH) / 2;
          for (int i = 0; i < initBrick; i += 30)
               int initX = i;
               int x = initX + initPlacement;
               GRect brick = new GRect(x, 0, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 60; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 15;
               int y = 12;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 90; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 30;
               int y = 24;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 120; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 45;
               int y = 36;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 150; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 60;
               int y = 48;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 180; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 75;
               int y = 60;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 210; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 90;
               int y = 72;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 240; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 105;
               int y = 84;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 270; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 120;
               int y = 96;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 300; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 135;
               int y = 108;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 330; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 150;
               int y = 120;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 360; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 165;
               int y = 132;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 390; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 180;
               int y = 144;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
          for (int i = 0; i < 420; i += 30)
               int initX = i;
               int x = (initX + initPlacement) - 195;
               int y = 156;
               GRect brick = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
               add(brick);
     }So yeah, it's very ugly. not general. BUT now; I know the logic of the program..
I need to change 3 variables here.
the Y var, the X variable, and the size of the loop test..
so I need to make a one compact for loop that will change those 3 for every time the loop finish, or for every row the variable will change...
Ill try to think again, ill head to the balcony, and squeeze my brain. YEAH it took me this long to figure this out, anyway im a noob YET. But i was working a while ago.
ANYWAY, leave some tips please.. I NEED TIPS NOT SOLUTION

Breaking a single query using for loop to improve performance

Hi,
This is a continuation of my previous post which I marked Answered and few things are were left from my side and I was advised to post a new thread...
[Will it be a good ply|http://forums.oracle.com/forums/thread.jspa?threadID=880922&tstart=0]
will it be applicable to any query because I took this to simplify the thing to explain my case
which is actually........... pull the data from some tables using joins and insert into some other tables .....
I used few procedures for diff conditions one of them use plain' insert into select' and others use bulk collect technique.
I followed the simple strategy (for DML ) by Tom Kytes ..and Steven Feuerstein
Use single statement whenever it is possible..
if not use PL/SQL with bulk collect to avoid for loop.
Please correct me if I am wrong.
Thanks and Regards,
Hesh.

A simple test can prove the case
SQL> set serveroutput on
SQL>
SQL> create table t
2 as
3 select * from all_objects where 1=2
4 /
Table created.
SQL> declare
2    ltime integer;
3 begin
4      ltime := dbms_utility.get_time;
5      insert into t select * from all_objects;
6      ltime := dbms_utility.get_time - ltime;
7
8      dbms_output.put_line(ltime);
9 end;
10 /
187
PL/SQL procedure successfully completed.
SQL> rollback
2 /
Rollback complete.
SQL> declare
2      ltime integer;
3      type tbl is table of t%rowtype index by pls_integer;
4      l_tbl tbl;
5      cursor c
6      is
7      select * from all_objects;
8 begin
9      ltime := dbms_utility.get_time;
10      open c;
11      loop
12          fetch c bulk collect into l_tbl limit 500;
13          exit when c%notfound;
14
15          forall i in 1..l_tbl.count
16            insert into t values l_tbl(i);
17      end loop;
18
19      ltime := dbms_utility.get_time - ltime;
20
21      dbms_output.put_line(ltime);
22 end;
23 /
390
PL/SQL procedure successfully completed.
SQL> rollback
2 /
Rollback complete.

Creating variables using set()

Does the set() function for dynamically creating variables
have a substitute in AS3?
This is a generic example written in AS2:

You're welcome. Until your posting, I didn't know there was
such a thing as set, so as often happens, I learn new things here.
My approach normally would have been along the lines of the = one.
If you're ever wondering about other changes, in the AS3 help
docs you can search on "Migration" and one of the few choices there
is titled as such wrt AS2. It tabulates the status of most of the
AS2 code elements and identifies alternatives for AS3 when
applicable.
Also, there's this offering you might find useful...
http://www.actionscriptcheatsheet.com/downloads/as3cs_migration.pdf

Initializing variables inside for-loop?

Dear all,
It's been a while since I last programmed in Java, and my skills seem to be a bit rusty.
I have a question for you here: suppose I need to initialize n (let's say 10) different integers, I suppose I couldn't use something like this:
for(int i = 0; i < 10; i++){
int <¿VALUE?> = i;
}Is there a way to dynamically initialize <VALUE>, for instance something like ("integer" + i)? (integer0=0, integer1=1, integer2=2, etc.)
Thank you,
Maarten

You need to declare the arrays in a context outside of the for loop, the for loop context will end and so will all of your locally declared variables. Now there is a way around that:
Make an ArrayList, in a "Global context" to your loop, and initialize your variables in the for loop, then add them to the ArrayList, once you are out of the loop, then the ArrayList will hold your references to your variables and keep them from being disposed. When you are done with them, then just remove them from the ArrayList.
ArrayList<myNodes> al = new ArrayList<myNodes>(); //in a "global context"
for(int i=0; i<iSomeNumber; i++){
MyNode n = new myNode();
//do what ever
al.add(n);
}If you need key values to look up your nodes by, then you a Map of some type instead of an ArrayList.

Draw lines using for loop

I want to return four lines using this procedure but it is returning only one. I wonder what I am
missing or Do we have mdsys.sdo_geometry array. I am returning values using cursor.
Thanks
Al

In your for loop, you open the returned cursor for each line.
That's why you only get one line (the last one) in your procedure.
An easy way is to return a varray of numbers for your lines ordinates.
You can use Spatial sdo_ordinate_array object type(VARRAY(1048576) OF NUMBER).
Each line has 4 ordinates in the varray.
Or you can create a varray of sdo_geometry in 11g and return a varray of sdo_geometry.
create type sdo_geom_array as varray(1000000) of sdo_geometry;
/jack

How to use for loops with Multiple Initializers and Incrementers

I found that my for loop is printing out wrong, because I am using two for loops. I have searched but all I can find out is you can't use multiple inializers and increments, does anyone know how to get around this? How would I use an array for this?
Thanks very much for your help.
import java.util.Random;
import java.util.Arrays;
/** Generate numnodes value for random integers in the range 0..499. */
public final class RandomInteger {
public static final void main(String... aArgs){
log("Generating 6 random integers in range 0..499.");
int numnodes = 6;
//Randomly generate a number between 0 and 499 for the x and y coordinates for the nodes
Random randomGenerator = new Random();
for (int x = 0; x < numnodes; ++x) {
int randomInt = randomGenerator.nextInt(500);
Random randomGenerator2 = new Random();
for (int y = 0;y < numnodes; ++y) {
int randomInt2 = randomGenerator2.nextInt(500);
log("Generated : " + randomInt + " " + randomInt2);
log("Done.");
}

Sorry that code works, but I want to use both my x and y coordinates to get a random number from 0 to 499 in both of them, then I want to do some comparisons of the values, then return it to another function. As it stands now, I get the wrong results when I run it, as you can see at the bottom.
Thanks very much for your help. I have been stumped all mornign on this and have looked everywhere trying to find an example. I don't won't to use math random. I am on a tight deadline to finish and at the rate I am going, I will not complete it.
/** Generate numnodes value for random integers in
the range 0..499. */
public final class RandomInteger {
public static final void main(String... aArgs){
log("Generating 6 random integers in range
0..499.");
int numnodes = 6;
//Randomly generate a number between 0 and 499 for
the x and y coordinates for the nodes
Random randomGenerator = new Random();
for (int x = 0; x < numnodes; ++x) {
int randomInt = randomGenerator.nextInt(500);
Random randomGenerator2 = new Random();
for (int y = 0;y < numnodes; ++y) {
int randomInt2 = randomGenerator2.nextInt(500);
log("Generated : " + randomInt + " " + randomInt2);
log("Done.");
private static void log(String aMessage){
System.out.println(aMessage);
Output:
--------------------Configuration:
<Default>--------------------
Generating 6 random integers in range 0..499.
Generated : 98 254
Generated : 98 347
Generated : 98 359
Generated : 98 25
Generated : 98 277
Generated : 98 148
Generated : 416 401
Generated : 416 165
Generated : 416 354
Generated : 416 169
Generated : 416 144
Generated : 416 354
Generated : 295 158
Generated : 295 138
Generated : 295 349
Generated : 295 324
Generated : 295 18
Generated : 295 193
Generated : 197 451
Generated : 197 416
Generated : 197 480
Generated : 197 33
Generated : 197 490
Generated : 197 494
Generated : 324 412
Generated : 324 490
Generated : 324 213
Generated : 324 386
Generated : 324 467
Generated : 324 163
Generated : 379 180
Generated : 379 446
Generated : 379 314
Generated : 379 52
Generated : 379 113
Generated : 379 271
Done.
Process completed.

Creating variables using for loop

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