Weird int data type

Hello everyone,
When I used the toBinaryString method, I noticed smth which make me confused about int data type.
For example:
In the following codes, the output is 1100 weirdly.
Whereas I knew that it must have been derived from 32 bits
So what is the problem??
int t = 12;
System.out.print(Integer.toBinaryString(t));

what's unclear in the API about that ?
[url=http://java.sun.com/j2se/1.5.0/docs/api/java/lang
/Integer.html#toBinaryString(int)]toBinaryStringNoooo.. reading documentation is like cheating :)

Similar Messages

Minus date in string data type

Hi all,
i having one table in database that used to store the borrow_date and return_date, the date is in this format 06/12/2008, when i retrieve the date from the database, and i pass it into String data type, for example as follows:
private String borrow_date = 05/12/2008;
private String return_date = 10/12/2008;
if for example student A return the book on 15/12/2008, which is after the return_date in database, then i want to minus is 15/12/2008 with 10/12/2008, so that i can get the int value of 5 days. Because i want to use this integer 5 for late penalty. One day charge for 20 cent.
e.g: String borrow_date - String return_date = int total_days;
Now my problem is this, i dont know how to use string data type minus with string data type to get the integer type.
I had tried for many methods already, still cannot get it, i can get the total days in int data type if the date is in Date or Calendar data type. The problem now is the date is in String data type. Any idea from you? :)
Regards,
poh_cc

poh_cc wrote:
because in my case, i have to use string data type :)Thinking about this again, it really is stupid. You say you are even storing the dates in the database as Strings and not Dates. It can only lead to a world of hurt.

Change to larger data type

Good day,
I would like to ask if it is possible to increase the capacity of the "CheckNo" in the "Payment Means" when selected in both "Incoming Payments" and "Outgoing Payments" module.
Currently CheckNo has an "int" data type in the database. however the value I am inserting has a value greater than the maximum value "int" can hold.
Is it possible to change it into a "bigint" data type?
One workaround we had is to set it as "alphanumeric" however the issue is that it can accept non numeric characters.

Hi,
Maximum allowed size 11. More than that, system will not allow to add. It is not possible to change field size.
Thanks & Regards,
Nagarajan

CAST Not working for me - Arithmetic overflow error converting int to data type numeric - error

GPM is DECIMAL(5,2)
PRICE is DECIMAL(11,4)
COST is DECIMAL(7,2)
Trying to update the Gross Profit Margin % field and I keep getting the "Arithmetic overflow error converting int to data type numeric" error.
UPDATE SMEMODETAIL SET SMD_GPM = (SMD_PRICE-SMD_COST) / SMD_PRICE * 100
FROM SMEMODETAIL WHERE SMD_PRICE<>0 AND SMD_QUANTITY<>0
Example record:
SMD_PRICE SMD_COST GPM%
1.8500 1.62 12.4324324324324300
I added cast and I still get the error.
How do I format to get this to work?
Thanks!

Hi GBerthume,
The error is caused by some value such as 1000.01 of the expression (SMD_PRICE-SMD_COST) / SMD_PRICE * 100 exceeds the
precision of the column(DECIMAL(5,2)). The example data doesn't cause the overflow error for the value of the expression is 12.43 which is in the scope of DECIMAL(5,2).
USE TestDB
CREATE TABLE SMEMODETAIL
SMD_PRICE DECIMAL(11,4),
SMD_COST DECIMAL(7,2),
SMD_GPM DECIMAL(5,2)
INSERT INTO SMEMODETAIL(SMD_PRICE,SMD_COST) SELECT 1.8500,1.62
UPDATE SMEMODETAIL SET SMD_GPM = (SMD_PRICE-SMD_COST) / SMD_PRICE * 100
FROM SMEMODETAIL WHERE SMD_PRICE<>0-- AND SMD_QUANTITY<>0
SELECT * FROM SMEMODETAIL
DROP TABLE SMEMODETAIL
The solution of your case can be either scale the DECIMAL(5,2) or follow the suggestion in Scott_morris-ga's to check and fix your data.
If you have any question, feel free to let me know.
Eric Zhang
TechNet Community Support

Conversion failed when converting the varchar value to data type int

Hi, I am unable to resolve this error and would like some assistance please.
The below query produces the following error message -
Msg 245, Level 16, State 1, Line 1
Conversion failed when converting the varchar value 'NCPR' to data type int.
Select Pc2.Assess,
                Select Pc1.Title
                From Pc1
                Where Pc1.Assess = Pc2.Assess
            ) [Title]
        From Pc2
However, when I run the query below I get the results shown in the image . Ie. nothing. Pc1 & Pc2 are aliases and are the same table and the assess field is an int. I found NCPR in one cell but that column (prop) is not used in the query. The table
is nearly 25k rows.
SELECT * FROM Pc1 WHERE Pc1.Assess LIKE '%NCPR%' OR ISNUMERIC(Pc1.Assess) = 0
Thank you

WHERE ISNUMERIC(id) = 1 and there are obviously no 'NCPR' records in the view as per my previous post.
That is a bad assumption - SQL Server does not have to evaluate the query in the order you are expecting it to.
Take this simple example
CREATE TABLE #example
col1 VARCHAR(50) NOT NULL
INSERT INTO #example VALUES ('1'), ('2'), ('NaN')
SELECT * FROM
SELECT * FROM #example
WHERE ISNUMERIC(col1) = 1
) X
(3 row(s) affected)
col1
1
2
(2 row(s) affected)
compare to
CREATE TABLE #example
col1 VARCHAR(50) NOT NULL
INSERT INTO #example VALUES ('1'), ('2'), ('NaN')
SELECT * FROM
SELECT * FROM #example
WHERE ISNUMERIC(col1) = 1
) X
WHERE col1 = 1
(3 row(s) affected)
col1
1
Msg 245, Level 16, State 1, Line 8
Conversion failed when converting the varchar value 'NaN' to data type int.

Conversion failed when converting the varchar value to data type int error

Hi, I am working on a report which is off of survey information and I am using dynamic pivot on multiple columns.
I have questions like Did you use this parking tag for more than 250 hours? If yes specify number of hours.
and the answers could be No, 302, 279, No and so on....
All these answers are of varchar datatype and all this data comes from a partner application where we consume this data for internal reporting.
When I am doing dynamic pivot I get the below error.
Error: Conversion failed when converting the varchar value 'No' to data type int.
Query
DECLARE @Cols1 VARCHAR(MAX), @Cols0 VARCHAR(MAX), @Total VARCHAR(MAX), @SQL VARCHAR(MAX)
SELECT @Cols1 = STUFF((SELECT ', ' + QUOTENAME(Question) FROM Question GROUP BY Question FOR XML PATH('')),1,2,'')
SELECT @Cols0 = (SELECT ', COALESCE(' + QUOTENAME(Question) + ',0) as ' + QUOTENAME(Question) FROM Question GROUP BY Question FOR XML PATH(''))
SET @SQL = 'SELECT QID, QNAME' + @Cols0 + '
FROM (SELECT QID, QNAME, ANSWERS, Question
FROM Question) T
PIVOT (MAX(ANSWERS) FOR Question IN ('+@Cols1+')) AS P'
EXECUTE (@SQL)
I am using SQL Server 2008 R2.
Please guide me to resolve this.
Thanks in advance..........
Ione

create table questions (QID int, QNAME varchar(50), ANSWERS varchar(500), Question varchar(50))
Insert into questions values(1,'a','b','c'), (2,'a2','b2','c2')
DECLARE @Cols1 VARCHAR(MAX), @Cols0 VARCHAR(MAX), @Total VARCHAR(MAX), @SQL VARCHAR(MAX)
SELECT @Cols1 = STUFF((SELECT ', ' + QUOTENAME(Question) FROM Questions GROUP BY Question FOR XML PATH('')),1,2,'')
SELECT @Cols0 = (SELECT ', COALESCE(' + QUOTENAME(Question) + ',''0'') as ' + QUOTENAME(Question) FROM Questions GROUP BY Question FOR XML PATH(''))
SET @SQL = 'SELECT QID, QNAME' + @Cols0 + '
FROM (SELECT QID, QNAME, ANSWERS, Question
FROM Questions) T
PIVOT (MAX(ANSWERS) FOR Question IN ('+@Cols1+')) AS P'
EXECUTE (@SQL)
drop table questions

Fact table data type changed from int to nvarchar -- rebuild on cube fails

I change one of my data types in the Fact table from INT to Nvarchar... When I look at the properties it appears
correct but when I try to Process it fails still thinking it's data type INT.
How can the DSV be refreshed( I did try REFRESH and it noticied the change to field) to reflect new nvarchar data type without
having to rebuild entire Cube.
SSAS 2005
Thanks.

Did you try to view the code on the Data Source view and cube that it is reflecting the correct data type on both places? if not you can change there and save it.
prajwal kumar potula

Conversion failed when converting the nvarchar value to data type int when returning nvarchar(max) from stored procedure

Thank you for your help!!!
I've created a stored procedure to return results as xml. I'm having trouble figuring out why I'm getting the error message "Conversion failed when converting the nvarchar value '<tr>.....'
to data type int. It seems like the system doesn't know that I'm returning a string... Or, I'm doing something that I just don't see.
ALTER PROCEDURE [dbo].[p_getTestResults]
@xml NVARCHAR(MAX) OUTPUT
AS
BEGIN
CREATE TABLE #Temp
[TestNameId] int,
[MaxTestDate] [DateTime],
[Name] [nvarchar](50),
[Duration] [varchar](10)
DECLARE @body NVARCHAR(MAX)
;WITH T1 AS
SELECT DISTINCT
Test.TestNameId
, replace(str(Test.TotalTime/3600,len(ltrim(Test.TotalTime/3600))+abs(sign(Test.TotalTime/359999)-1)) + ':' + str((Test.TotalTime/60)%60,2)+':' + str(Test.TotalTime%60,2),' ','0') as Duration
,MaxTestDate = MAX(TestDate) OVER (PARTITION BY TM.TestNameId)
,TestDate
,TM.Name
,Test.TotalTime
,RowId = ROW_NUMBER() OVER
PARTITION BY
TM.TestNameId
ORDER BY
TestDate DESC
FROM
Test
inner join TestName TM on Test.TestNameID = TM.TestNameID
where not Test.TestNameID in (24,25,26,27)
INSERT INTO #Temp
SELECT
T1.TestNameId
,T1.MaxTestDate
,T1.[Name]
,T1.Duration
FROM
T1
WHERE
T1.RowId = 1
ORDER BY
T1.TestNameId
SET @body ='<html><body><H3>TEST RESULTS INFO</H3>
<table border = 1>
<tr>
<th> TestNameId </th> <th> MaxTestDate </th> <th> Name </th> <th> Duration </th></tr>'
SET @xml = CAST((
SELECT CAST(TestNameId AS NVARCHAR(4)) as 'td'
, CAST([MaxTestDate] AS NVARCHAR(11)) AS 'td'
, [Name] AS 'td'
, CAST([Duration] AS NVARCHAR(10)) AS 'td'
FROM #Temp
ORDER BY TestNameId
FOR XML PATH('tr'), ELEMENTS ) AS NVARCHAR(MAX))
SET @body = @body + @xml +'</table></body></html>'
DROP TABLE #Temp
RETURN @xml
END
closl

Your dont need RETURN inside SP as you've declared @xml already as an OUTPUT parameter. Also you can RETURN only integer values using RETURN statement inside stored procedure as that's default return type of SP.
so just remove RETURN statement and it would work fine
To retrieve value outside you need to invoke it as below
DECLARE @ret nvarchar(max)
EXEC dbo.[P_gettestresults] @ret OUT
SELECT @ret
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Not converting anything but get error: "Conversion failed converting varchar value 'X' to data type int"

I have created the following trigger that fires instead of an UPDATE statement and copies the altered data over to an Audit table before proceeding with the requested UPDATE. After doing so, I wrote a simple UPDATE statement for testing:
UPDATE Products
SET ProductCode = 'XYZ 2014', ProductName = 'Special Edition Tamborine', ListPrice = 74.99, DiscountPercent = .5
WHERE ProductID = 28;
When I run this, I get the following message:
Msg 245, Level 16, State 1, Procedure Products_UPDATE, Line 14
Conversion failed when converting the varchar value 'X' to data type int.
Here is my trigger:
IF OBJECT_ID('Products_UPDATE') IS NOT NULL
DROP TRIGGER Products_UPDATE; -- LINE 14
GO
CREATE TRIGGER Products_UPDATE
ON Products
INSTEAD OF UPDATE
AS
DECLARE @ProductID int, @CategoryID int, @ProductCode varchar, @ProductName varchar,
@Description varchar, @ListPrice money, @DiscountPercent money, @DateUpdated datetime
BEGIN
SELECT @ProductID = ProductID, @CategoryID = CategoryID, @ProductCode = ProductCode,
@ProductName = ProductName, @Description = Description, @ListPrice = ListPrice,
@DiscountPercent = DiscountPercent, @DateUpdated = GetDate()
FROM deleted;
INSERT INTO ProductsAudit
VALUES (@ProductCode, @CategoryID, @ProductCode, @ProductName, @ListPrice,
@DiscountPercent, @DateUpdated);
SELECT @ProductID = ProductID, @CategoryID = CategoryID, @ProductCode = ProductCode,
@ProductName = ProductName, @Description = Description, @ListPrice = ListPrice,
@DiscountPercent = DiscountPercent, @DateUpdated = GetDate()
FROM inserted;
UPDATE Products
SET CategoryID = @CategoryID, ProductCode = @ProductCode,
ProductName = @ProductName, Description = @Description,
ListPrice = @ListPrice, DiscountPercent = @DiscountPercent
WHERE ProductID = (SELECT ProductID FROM inserted)
END
I am confused a bit by (1) the location of the error and (2) the reason. I have looked over my defined data types and they all match.
Could someone offer a second set of eyes on the above and perhaps guide me towards a solution?
Thank you.

This is an issue in this trigger. It will work for single record updates alone. Also for your requirement you dont need a INSTEAD OF TRIGGER at all.
You just need this
IF OBJECT_ID('Products_UPDATE') IS NOT NULL
DROP TRIGGER Products_UPDATE;
GO
CREATE TRIGGER Products_UPDATE
ON Products
AFTER UPDATE
AS
BEGIN
INSERT INTO ProductsAudit
SELECT ProductID,
CategoryID,
ProductCode,
ProductName,
ListPrice,
DiscountPercent,
GetDate()
FROM deleted;
END
Now, in your original posted code there was a typo ie you repeated the column ProductCode twice
I think one should be ProductID which is why you got error due to data mismatch (ProductID is int and ProductName is varchar)
see below modified version of your original code
IF OBJECT_ID('Products_UPDATE') IS NOT NULL
DROP TRIGGER Products_UPDATE; -- LINE 14
GO
CREATE TRIGGER Products_UPDATE
ON Products
INSTEAD OF UPDATE
AS
DECLARE @ProductID int, @CategoryID int, @ProductCode varchar, @ProductName varchar,
@Description varchar, @ListPrice money, @DiscountPercent money, @DateUpdated datetime
BEGIN
SELECT @ProductID = ProductID, @CategoryID = CategoryID, @ProductCode = ProductCode,
@ProductName = ProductName, @Description = Description, @ListPrice = ListPrice,
@DiscountPercent = DiscountPercent, @DateUpdated = GetDate()
FROM deleted;
INSERT INTO ProductsAudit
VALUES (@ProductID, @CategoryID, @ProductCode, @ProductName, @ListPrice,
@DiscountPercent, @DateUpdated);
SELECT @ProductID = ProductID, @CategoryID = CategoryID, @ProductCode = ProductCode,
@ProductName = ProductName, @Description = Description, @ListPrice = ListPrice,
@DiscountPercent = DiscountPercent, @DateUpdated = GetDate()
FROM inserted;
UPDATE Products
SET CategoryID = @CategoryID, ProductCode = @ProductCode,
ProductName = @ProductName, Description = @Description,
ListPrice = @ListPrice, DiscountPercent = @DiscountPercent
WHERE ProductID = (SELECT ProductID FROM inserted)
END
I would prefer doing it as former way though
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Sql data type : int

create table del_me_tab
num int
insert into del_me_tab values(09);
commit;
select * from del_me_tab; // gives 9
I want to modify the data type for num ... so that when i store 09 ... i get 09
Is there a way to do that

Hi,
Integer 09 is the same as integer 9 so you cannot do this. If you want to present this number in a certain way use the to_char function with a format mask.
select to_char(<column_name>,'09') will give you your 09 for example.
Check out the documentation:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/functions181.htm#sthref2303
Rene

Concatenate forward slash with int columns data type

Hi,
I'm trying to concatenate INT/TINYINT columns with '/' sign (forward slash).
the error I get is:
Conversion failed when converting the varchar value '/' to data type tinyint
how can I concatenate it all together?
Regards

You have to convert first the int/tinyint values into varchar, before you can concatenate them
SELECT CONVERT(varchar, MyIntColumn1) + '/' + CONVERT(varchar, MyIntColumn2)
Olaf Helper
[ Blog] [ Xing] [ MVP]

Arithmetic overflow error converting expression to data type int

Hi
iam creating on sp for the database total size , used mb and free size . percentage free .
in this purpose i was creating on sps, with in the sp iam was writing one select statement . it statement is
SELECT [Drivename] ,[DataSizedUsedMB],[DriveFreeSizeMB],DriveTotalSizeMB,
CAST( (DriveFreeSizeMB/DriveTotalSizeMB)* 100 AS NUMERIC(5,2))
As
[PercentFree] ,[DateRecorded] FROM
SELECT SUBSTRING([physical_name],1,1) AS Drivename,
CAST(((SUM(COALESCE(size,0)))*8)/1024 AS NUMERIC(20,2)) AS DriveTotalSizeMB,
CAST(((SUM( COALESCE( FILEPROPERTY( [name],'SpaceUsed'),0)))*8)/1024 AS NUMERIC(20,2)) AS DataSizedUsedMB,
CAST(((SUM(COALESCE(size,0))-SUM(COALESCE(fileproperty([name],'spaceused'),0)))*8/1024)AS NUMERIC(20,2)) AS DriveFreeSizeMB
,SYSDATETIME() AS [DateRecorded]
FROM sys.master_files
GROUP BY SUBSTRING([physical_name],1,1)) AS Data
it was executive one server with out error but the same select statement is writing antoher server iam geeting belo error.
"@ErrorDesc: Line 24 - Line 13- Arithmetic overflow error converting expression to data type int."
how to slove this issue..
please help me...

Change 8 to 8E0, to make it a float literal. The data type of
SUM(COALESCE(size,0)))*8)
is int, since all components are int, and it can easily overflow the size for an int. If you use 8E0, you get a float, and the entire expression will be float.
Erland Sommarskog, SQL Server MVP, [email protected]

Arithmetic overflow error converting expression to data type int. Why in this case?

Hi guys, it is Friday and I am really tired but..
WITH CTE AS (
SELECT LEN(CONS_ID) AS PROCA FROM TryCons)
SELECT SUM(PROCA) FROM CTE
Why I retrieve
Arithmetic overflow error converting expression to data type int.
Len should returns a number and so sum should work. It can be because I am trying to read 500 millions rows? But it wouldn't make sense..

Len should returns a number and so sum should work. It can be because I am trying to read 500 millions rows? But it wouldn't make sense..
If the average length of the field exceeds 4.29, that statement will explode. Since I don't know what's in CONS_ID, I can't say whether it makes sense or not. Although, I will have to say that from my uninitiated position, this seems like an
accident to happen.
Erland Sommarskog, SQL Server MVP, [email protected]

Arrays of Different Data Types

Hi, I am studing Java Development as 2 of my units (Programming Theory and Programming Practice), and I have a problem with a program which involves an array that contains two data types; int and long. The program is designed to store Student ID's and Exam Marks (1 Exam Mark per ID). The program is designed to use sorting, and the array is to be populated at the start of program execution. It compiles fine, but I get an error when the program is running as soon as you input the first value. The program is not very complex, but I need to understand how to get this fixed and why is isn't already. Any help is appreciated as this is a genuine problem. This program follows a consistent style template given to me by my tutor. The source is given below, and I appreciate any positive response.
Thanks in advance...
Aaron
     Name: Aaron Allport ([email protected])
     Assignment Number: 7
     Program Title/Topic: Student Marks/ID's with use of Array's
     Program Description: Using arrays and search/sort methods,
                              write a program that keeps a record of
                              students on a module, and allows the
                              data to be manipulated.
     Course Title/Unit: BTEC National in Computing
import javax.swing.JOptionPane;
class StudentRecord
     int mark;
     long sID;
public class Assignment7
     public static void main(String args[])
          final int numOfStudents = 11;
          String highestMark;
          String lowestMark;
          String examMark;
          long studentID = 00000000;
          String menuChoice;
          StudentRecord module[] = new StudentRecord[numOfStudents];
          inputRecords(module, numOfStudents);
          do
          menuChoice = JOptionPane.showInputDialog(null,
               "STUDENT MODULE MARKS\n\n" +
               "1. Find student with highest mark\n" +
               "2. Find student with lowest mark\n" +
               "3. Find grade for a given student\n" +
               "4. Sort records by Student ID\n" +
               "5. Sort records by Student Mark\n" +
               "6. Display all records");
                    if (menuChoice.equals("1"))
                         highestMark = findHighest(module, numOfStudents);
                    else if (menuChoice.equals("2"))
                         lowestMark = findLowest(module, numOfStudents);
                    else if (menuChoice.equals("3"))
                         examMark = findGrade(module, numOfStudents, studentID);
                    else if (menuChoice.equals("4"))
                         studentIDSort(module, numOfStudents);
                         displayData(module, numOfStudents);
                    else if (menuChoice.equals("5"))
                         markSort(module, numOfStudents);
                         displayData(module, numOfStudents);
                    else if (menuChoice.equals("6"))
                         displayData(module, numOfStudents);
               } while (menuChoice.equalsIgnoreCase("Q") == false);
               System.exit(0);
     public static void inputRecords(StudentRecord module[], int numOfStudents)
          int i;
          String inputMark;
          String inputStudentID;
          for (i = 1; i < numOfStudents; i++)
               module[ i] = new StudentRecord();
               inputStudentID = JOptionPane.showInputDialog(null,
                                   "Please enter Student ID for position " + i + ":");
               module[ i].sID = Long.parseLong(inputStudentID);
               inputMark = JOptionPane.showInputDialog(null,
                                   "Please enter Student Mark for position " + i + ":");
               module[ i].mark = Integer.parseInt(inputMark);
     public static String findHighest(StudentRecord module[], int numOfStudents)
          int highStudentID;
          int j;
          StudentRecord temp = new StudentRecord();
          boolean intChange = true;
          int pass = 1;
          String outputMark;
          String outputSID;
          while((pass <= numOfStudents - 1) && (intChange))
               intChange = false;
               for (j = 1; j <= numOfStudents - pass; j++)
                    module[j] = new StudentRecord();
                    if(module[j].mark > module[j + 1].mark)
                         intChange = true;
                         temp.mark = module[j].mark;
                         temp.sID = module[j].sID;
                         module[j] = module[j + 1];
                         module[j + 1].mark = temp.mark;
                         module[j + 1].sID = temp.sID;
               pass++;
          outputSID = String.valueOf(module[module.length].sID);
          outputMark = String.valueOf(module[module.length].mark);
          return (outputSID + " " + outputMark);
     public static String findLowest(StudentRecord module[], int numOfStudents)
          String outputMark;
          String outputSID;
          int j;
          StudentRecord temp = new StudentRecord();
          boolean intChange = true;
          int pass = 1;
          while((pass <= numOfStudents - 1) && (intChange))
               intChange = false;
               for (j = 1; j <= numOfStudents - pass; j++)
                    module[j] = new StudentRecord();
                    if(module[j].mark > module[j + 1].mark)
                         intChange = true;
                         temp.mark = module[j].mark;
                         temp.sID = module[j].sID;
                         module[j] = module[j + 1];
                         module[j + 1].mark = temp.mark;
                         module[j + 1].sID = temp.sID;
               pass++;
          outputSID = String.valueOf(module[1].sID);
          outputMark = String.valueOf(module[1].mark);
          return (outputSID + " " + outputMark);
     public static String findGrade(StudentRecord module[], int numOfStudents, long studentID)
          String foundGrade = "";
          int i;
          String outputSID;
          String outputMark;
          for (i = 1; i <= module.length; i++)
               module[ i] = new StudentRecord();
               if (studentID == module[ i].sID)
                    outputSID = String.valueOf(module[ i].sID);
                    outputMark = String.valueOf(module[ i].mark);
                    foundGrade = (outputSID + " " + outputMark);
          if (foundGrade == "")
               JOptionPane.showMessageDialog(null,
                    "No grade found for Student: " + studentID);
          return foundGrade;
     public static void studentIDSort(StudentRecord module[], int numOfStudents)
          int i;
          int j;
          StudentRecord temp = new StudentRecord();
          for (i = (module.length - 1); i >= 0; i--)
               for (j = 1; j <= i; j++)
                    module[j] = new StudentRecord();
                    if (module[j - 1].sID > module[j].sID)
                         temp = module[j - 1];
                         module[j - 1] = module[j];
                         module[j] = temp;
     public static void markSort(StudentRecord module[], int numOfStudents)
          int i;
          int j;
          StudentRecord temp = new StudentRecord();
          for (i = (module.length - 1); i >= 0; i--)
               for (j = 1; j <= i; j++)
                    module[j] = new StudentRecord();
                    if (module[j - 1].mark > module[j].mark)
                         temp = module[j - 1];
                         module[j - 1] = module[j];
                         module[j] = temp;
     public static void displayData(StudentRecord module[], int numOfStudents)
          String outputMessage = "";
          int i;
          for (i = 1; i <= module.length; i++)
               module[ i] = new StudentRecord();
               outputMessage += (module[ i].sID + " " + module[ i].mark + "\n");
          JOptionPane.showMessageDialog(null,
               "Data Display\n" +
               "**** *******\n\n" +
               outputMessage,
               "Data Display", JOptionPane.INFORMATION_MESSAGE);
}

Try this piece of code...... I adapted it to your program, so it starts from 1. You should pass numOfStudents - 1 as numOfStudents to don't get the notorious error =D
if (menuChoice.equals("1"))
findHighest(module, numOfStudents - 1);
I added the println statement because in your prog isn't present an output routine (well, at last I didn't see it..... maybe because I'm sleepy =) )
public static void findHighest(StudentRecord module[], int numOfStudents)
String outputMark;
String outputSID;
StudentRecord retValue = new StudentRecord();
retValue.sID = module[1].sID;
retValue.mark = module[1].mark;
for (int i = 2; i <= numOfStudents; i++) {
     if (module.mark > retValue.mark) {
     retValue.sID = module[i].sID;
     retValue.mark = module[i].mark;
outputSID = String.valueOf(retValue.sID);
outputMark = String.valueOf(retValue.mark);
System.out.println(outputSID + " " + outputMark);
Hope it can help you

Performance and data types: which to use?

Hi All,
I am wondering what data type to use and the effect of them on memory/speed.
1. What is the difference (if any) of using sgl, dbl, int etc. Looking at the LabVIEW help there seems to be a range of 8-256 bits of storage according to the data type. Is it basically choose the one with the smallest storage that can fit the data?
2. I currently have a cluster flowing through subVI's. The cluster contains the start time (or freq), the delta t (or f) and the array of data (about 500-5000 elements). I tried to use the waveform datatype but it couldn't handle a delta t of 2 nanoseconds (500 MHz signal). Am i ok using the cluster, or should i seperate the components and pass them along? What data type should i use for each of the components?
Thanks

There are three main issue to consider.
Range and accuracy. If you need a very high level of accuracy, then you will need to use the extended data type or even create your own, although that's unlikely.
Memory. Yes, SGL takes less than DBL, but unless you're dealing with really huge amounts of data this won't matter.
Coercion. Most built in functions work on DBL. If you wire a SGL into them, they will coerce it, possibly creating a copy of the data and increasing your memory usage.
To sum it up, most of the times it would be best to use the default DBL. It's highly unlikely you'll need one of the others.
As for your second question, it sounds to me like the data is a single organism, so I would say you should leave it in the cluster, but that really depends on whether the functions need it or not and whether you're constantly bundling and unbundling the cluster. Note that 5000 elements is far from being a large array and you shouldn't have any problems handling it.
As for the timing unit, if you really only have 5000 elements (that's 10 microseconds of data?) then you should not have a problem with using a U32 with a nanosecond as the base unit. That should give you the ability to measure more than 4 seconds.
Try to take over the world!

Weird int data type

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