Casting string as int always makes it zero?

Hi
I've had to make
_myID = event.selectedRow.getData("my_id");
into
_myID= event.selectedRow.getData("my_id") as int;
so that it stops causing a warning when my buddy loads it into FlashDevelop (I'm working in Pro)
Since then, every myID becomes 0. eg if event.selectedRow.getData("request_id") contains "29" it turns 29 into into zero.
What should I do so that "29" becomes 29?
Thanks for taking a look.

You can also use parseInt and parseFloat, which have the advantage of letting you check for isNaN if the cast fails (but the variable type needs to be Number for this to work--I don't think int can be NaN).

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How can i cast array of string to int ?

                   while(st.hasMoreTokens()){
                              test[count] = st.nextToken();
                              count++;
                      }Since token deal with string, i have to pass them into String of array, but how can i convert all of them to int to perform arithmetic operation?

     public static void main (String[] args) throws IOException{
           DataInputStream dis = null;
             String dbRecord = null;
             int tokenCount = 0;
             int numOfQuestion = 0;
             int questionnAireNum = 0;
             int postCode = 0;
             int age = 0;
             int gender = 0;
             String [] response = new String[10];
                File f = new File("polldata.txt");
                FileInputStream fis = new FileInputStream(f);
                BufferedInputStream bis = new BufferedInputStream(fis);
                dis = new DataInputStream(bis);
                // read the first record of the database
                while ( (dbRecord = dis.readLine()) != null) {
                   StringTokenizer st = new StringTokenizer(dbRecord, ",");
                   tokenCount = st.countTokens();
                   numOfQuestion = tokenCount-4;
                   String rquestionNum = st.nextToken();
                   questionnAireNum = Integer.parseInt(rquestionNum);
                   String rpostCode = st.nextToken();
                   postCode = Integer.parseInt(rpostCode);
                   String rAge = st.nextToken();
                   age = Integer.parseInt(rAge);
                   String rGender = st.nextToken();
                   gender = Integer.parseInt(rGender);
                   for(int i=0; i<numOfQuestion;i++){
                        response[i] = st.nextToken();
                   }hi how come when i cast the string as int it prompt me error as shown below ? I wonder what causes this because this is normally how i cast string to int, somehow it won work this way with token.
Exception in thread "main" java.lang.NumberFormatException: For input string: " 3"
     at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
     at java.lang.Integer.parseInt(Integer.java:447)
     at java.lang.Integer.valueOf(Integer.java:553)
     at test.main(test.java:43)

How to convert String to int in JSP?

Hi,
I set a session attribute in Servlet and want use it in JSP, How can I convert it to int or Integer?
the line in my code doesn't work:
int quantity=(int)session.getAttribute("vehiclequantity") ;
Thanks in advance.
Wolf
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
<HTML>
<HEAD>
<TITLE>Using the for Statement</TITLE>
</HEAD>
<BODY>
<H1>Using the for Statement</H1>
<%=session.getAttribute("vehiclequantity") %>;
<%
int loopIndex;
int quantity=(int)session.getAttribute("vehiclequantity") ;
out.println(quantity);
for (loopIndex = 1; loopIndex <=2; loopIndex++) {
out.println("This is iteration number "
+ loopIndex + "<BR>");
%>
</BODY>
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Learning how to read errors and understand them will help you solve your problems quicker by yourself... So lets take a look at the error and classes involved...
The error says:
"Cannor Resolve Symbol: method valueOf(java.lang.Object) in the class java.lang.Integer" and gives you line line where the error occurs: Integer quantity = Integer.valueOf(session.getAttribute("vehiclequantity"));
Now, if we look at the API for the Integer we notice that are are only two valueOf methods: valueOf(java.lang.String s) and valueOf(java.lang.String s, int radix). Not valueOf(java.lang.Object) method.
Now we look at the getAttribute(java.lang.String name) method of HttpSession we see that the method returns a java.lang.Object. Now, you know you put a java.lang.String into that attribute, but the get method returns an Object. This is because you could have put any object in there, an Integer, a String, or some other class instance. But you know it is a String, so you can cast the returned value to a String, so that you will be calling the valueOf(java.lang.String s) method of Integer with the Object returned from the HtttpSession's getAttribute(java.lang.String name) method:
Integer quantity = Integer.valueOf((String)session.getAttribute("vehiclequantity"));

Kinda urgent please help pass strings to doubles and strings to ints

Need to know how to pass strings to doubles and strings to ints
and to check if a string is null its just if (name == null;) which means black right?
like size as a string and then make the string size a double

cupofjava666 wrote:
Need to know how to pass strings to doubles and strings to ints
and to check if a string is null its just if (name == null;) which means black right?
like size as a string and then make the string size a doubleThink he means blank.
Check the Wrapper classes (Double, Integer) in the api.
parseInt() parseDouble() both take a string and return a primitive.
String s = null;
if(s == null) should do the trick!
Regards.
Edited by: Boeing-737 on May 29, 2008 11:08 AM

Problem with String to Int conversion

Dear Friends,
Problem with String to Int conversion
I am having a column where most of the values are numeric. Only 4 values are non numeric.
I have replaces those non numeric values to numeric in order to maintain the data type.
CASE Grade.Grade WHEN 'E4' THEN '24' WHEN 'E3' THEN '23' WHEN 'E2' THEN '22' WHEN 'E1' THEN '21' ELSE Grade.Grade END
This comes the result as down
Grade
_0_
_1_
_10_
_11_
_12_
_13_
_14_
_15_
_16_
_17_
_18_
_19_
_2_
_20_
_21_
_22_
_23_
_24_
_3_
_4_
_5_
_6_
_7_
_8_
_9_
Refresh
Now I want to convert this value to numeric and do some calculation
So I changed the formula as below
cast (CASE Grade.Grade WHEN 'E4' THEN '24' WHEN 'E3' THEN '23' WHEN 'E2' THEN '22' WHEN 'E1' THEN '21' ELSE Grade.Grade END as INT)
Now I get the following error
View Display Error
_ Odbc driver returned an error (SQLExecDirectW)._
Error Details
Error Codes: OPR4ONWY:U9IM8TAC:OI2DL65P
_State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 17001] Oracle Error code: 1722, message: ORA-01722: invalid number at OCI call OCIStmtFetch. [nQSError: 17012] Bulk fetch failed. (HY000)_
SQL Issued: SELECT cast ( CASE Grade.Grade WHEN 'E4' THEN '24' WHEN 'E3' THEN '23' WHEN 'E2' THEN '22' WHEN 'E1' THEN '21' ELSE Grade.Grade END as Int) saw0 FROM "Human Capital - Manpower Costing" WHERE LENGTH(CASE Grade.Grade WHEN 'E1' THEN '20' WHEN 'E2' THEN '21' WHEN 'E3' THEN '22' WHEN 'E4' THEN '23' ELSE Grade.Grade END) > 0 ORDER BY saw_0_
Refresh
Could anybody help me
Regards
Mustafa
Edited by: Musnet on Jun 29, 2010 5:42 AM
Edited by: Musnet on Jun 29, 2010 6:48 AM

Dear Kart,
This give me another hint, Yes you are right. There was one row which returns neither blank nor any value.
I have done the code like following and it works fine
Thanks again for your support
Regards
Code: cast (CASE (CASE WHEN Length(Grade.Grade)=0 THEN '--' ELSE Grade.Grade END) WHEN 'E4' THEN '24' WHEN 'E3' THEN '23' WHEN 'E2' THEN '22' WHEN 'E1' THEN '21' when '--' then '-1' ELSE Grade.Grade END as Int)

Checking a value...String OR int

checking a value...String OR int
how to check a given value whether it is a String OR int
if(jTextField1.getText()...) is a String
     System.out.println("String");
else //if it an int
     System.out.println("int");
How can i check this...
pls,tell.

getText of JTextField ALWAYS returns a String.
You can do this to see if it could be interpreted as an int:
String theText = jTextField1.getText();
try
   int theInt = Integer.parseInt(theText);
   System.out.println("int");
catch (NumberFormatException ex)
   System.out.println("String");
}If it isn't in a form that can be parsed as an int, you will get an exception and the catch block will get executed.

Upgrade os v4.5 BB curve 8310 to higher compatible os & file free always goes to zero byte

Hi all,<br>Let me introduce myself first, my name is hasya from Indonesia, I am using BB curve 8310 with os v4.5.0.124, There are 2 Things would like to ask for looking for solve/solutions as follow:<br>1. Can I upgrade my BB curve 8310 os v4.5 To higher compatible os?kindly please let me know how to do it and where I can get that software / higher os?<br>2. My file free always goes to zero byte so make my bb is hank or not responding, I already run memory cleaner from BB but can not solve that problem,I always do hard reset (battery pulled out) to get more file free, kindly please let me know how to maintain or keep my file free is not going to zero byte, and please let me know if there is best software can solve it
Solved!
Go to Solution.

S 4.5.0.188 is the highest and latest available release for the 8310.
Here are directions and the download.
http://www.blackberryforums.com/general-8300-series-discussion-curve/236833-latest-os-8310-4-5-0-313...
Turn off your memory cleaner, it is worthless to your situation and does NOT clear additional memory for your device, it just wastes battery and resource, and ONLY cleans already deleted memory to a high secure government specification. Nice for the FBI, CIA, drug and p0rn dealers, worthless for you.
For low memory issues:
First thing? Check the File Free at Options > Status, what is the number at File Free?
Now, leaving the device powered ON, remove the battery of your device, hold a minute, replace and reboot.
What is the File Free now?
Read this: http://www.blackberryforums.com/general-blackberry-discussion/116396-managing-your-bb-memory-lost-ca...
And this: http://www.blackberryforums.com/general-blackberry-discussion/112029-losing-call-logs-sms-emails-opt...
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http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB15345&sliceId=SAL_Pub...
http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB14320&sliceId=SAL_Pub...
http://www.blackberry.com/btsc/dynamickc.do?externalId=KB14213&sliceId=SAL_Public&command=show&forwa...
1. If any post helps you please click the below the post(s) that helped you.
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Interesting problems with the 1.2.2 Debugger and String.substring(int)

Guys/Gals,
Here's an interesting problem to ponder...
I define the following values in my class:
private String descriptorClassName = null;
private String userObjectClassName = null;
private String name = null;
I run the following piece of code as part of the constructor:
descriptorClassName = this.getClass().getName();
userObjectClassName = descriptorClassName.substring(0, descriptorClassName.indexOf("Descriptor"));
name = userObjectClassName.substring(userObjectClassName.lastIndexOf(".")+1);
The first line assigns the value of "com.foo.user.UserDataDescriptor" to descriptorClassName.
The second line assigns the value of "com.foo.user.UserData" to userObjectClassName.
The third line assigns the value of "UserData" to name.
As I step through the code, I see the first two values being set, and yet the third value for name is reported by the debugger as:
"name = null".
I added a call to log4j, which reports that that value of name has been correctly set!
This seems to be a result of the String.substing(int) call, as the call to Sring(substring(int, int) is fine.
Has anyone come accross this one before?
Does anyone have any workarounds other than:
name = userObjectClassName.substring(userObjectClassName.lastIndexOf(".")+1, userObjectClassName.length());
Cheers all.
Regards,
Chris.

I've been trying to reproduce this problem and it always works perfectly. The debugger tells me that name = "UserData". I'm using JDev 3.2.2 and my project is using JDK1.2.2_JDeveloper. Here's the exact source code I'm trying.
package com.foo.user;
public class UserDataDescriptor {
private String descriptorClassName = null;
private String userObjectClassName = null;
private String name = null;
public UserDataDescriptor() {
descriptorClassName = this.getClass().getName();
userObjectClassName = descriptorClassName.substring(0, descriptorClassName.indexOf("Descriptor"));
name = userObjectClassName.substring(userObjectClassName.lastIndexOf(".")+1);
System.out.println("end of constructor");
public static void main(String[] args) {
UserDataDescriptor userDataDescriptor = new UserDataDescriptor();
null

How can system ensure to always make replenish qty to Max level?

Hello,
I have following query related to posting change in WM
MAX qty --- 100
Min qty--- 50
How should I make the stock to Max 100 always when available stock falls below 50? For ex- if available stock is 49 or 30, or 2 or anything below 50 then system should always replenish it to 100 from Replenishment bin
I believe when replenished qty in material master is 50 and stock is below 50 then system will replenish 50 qty. How can system ensure to always make replenish qty to Max level?
Thanks,
MMC

Hi,
Keep the replinish qty as zero in WM2 view of MMR.
Go to LP21 and see if the requetsed qty is now 100.
If you keep some qty as replinish qty, the same qty is always proposed as requested qty (TR qty)
regards
Shashidhar

Strinig.indexOf(String str, Int fromIndex)

Hello.
In the API reference manual J2SE 5.0 (and earlyer also),
"public indexOf(String str, int fromIndex)"
is discribed such as,
| Returns the index within this string of the first occurrence of the specified substring,
| starting at the specified index. The integer returned is the smallest value k for which:
| k >= Math.min(fromIndex, str.length()) && this.startsWith(str, k)
I can't understand why str.length() is needed here.
For example,
String string = "my beautiful dream";
String str = "ea";
int fromIndex = 10;
in the case, str.ng.indexOf(str, fromIndex) returns 15, the value is what I what to get.
But,I think the smallest value k for which
| k >= Math.min(fromIndex, str.length()) && this.startsWith(str, k)
is 4, isn't it?
import junit.framework.TestCase;
* @author phinloda
* test String.indexOf
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          int k2 = targetString.indexOf(str, fromIndex);
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               if (n >= Math.min(fromIndex, str.length()) && targetStr.startsWith(str, n)) {
                    return n;
          return -1;
     public static void main(String[] args) {
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}lastIndexOf(String str, int fromIndex) is more difficult for me.
("this.length()" is right?, but it's nonsense.)

("this.length()" is right?, but it's nonsense.)Yes, it should be this.length() and not str.length().
I don't think it's nonsense because now the empty
string always gives a non-negative index, e.g.
"string".indexOf("", 1000) returns 6...perhaps this
property is useful for some string algorithmsI think it only does this for an empty String, so it would be clearer if the docs said something about returning this.length() if str.length()==0.

How to make stock zero after asset consumption?

Dear all,My scernio is that our business process is cwip all the material is posted either in asset or cost center no inventory is maintained.But for one material user forgot to give account category but in backhand my fico consultant consumped that material agianst asset.But when checking the STOCK it showing.Pls help how to make stock zero without account effect.It is not possible to reverse as the payment already done.FOR STOCK USING STANDARD TCODE.
PLS HELP???????????????????????????????

>
Tanmoy_mm wrote:
> Dear all,My scernio is that our business process is cwip all the material is posted either in asset or cost center no inventory is maintained.But for one material user forgot to give account category but in backhand my fico consultant consumped that material agianst asset.But when checking the STOCK it showing.Pls help how to make stock zero without account effect.It is not possible to reverse as the payment already done.FOR STOCK USING STANDARD TCODE.
>
> PLS HELP???????????????????????????????
how could your fico consultant consume that material against asset, without the stock is going down?
did he do a FI posting only?
if so, then he has to reverse it and has to post the consumption with a MM movement.

String to Int and Int to String

How can I convert a string to Int & and an Int to String ?
Say I've
String abc="234"
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Pl. help.

String.valueOf(int) takes an int and returns a string.
Integer.parseInt(str) takes a string, returns an int.
For all the others long, double, hex etc. RTFM :)

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always remember to use the try/catch block with thins that throw exceptions
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gg = "30";
in = Integer.parseInt(gg);
catch(NumberFormatException e){
e.printStackTrace();
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I have a mac osX 10.5.8 and i could always make photo books with iphoto , now all of a sudden i cant because i have iphoto version 7.1.5 i have tried countless updates and nothing is working ? help ?

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Casting string as int always makes it zero?

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