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• How can we access the variables declared in another class without using extern ?

  - by srikanth rongali

  Can we access the integer type variables in classB which are declared in classA by not using extern? For objects I used ClassA *obj1 = [[ClassA alloc]init]; And accessed the objects of classA into class B. But, I am not able to do them with the int , float, NSTimeInterval. How can we do for them without using extern ? Thank You.

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• Finding the position of the max element

  - by Faken

  Is there a standard function that returns the position(not value) of the max element of an array of values? For example: say i have an array like this: sampleArray = [1, 5, 2, 9, 4, 6, 3] I want a function that returns the integer of 3 that tells me that sampleArray[3] is the largest value in the array.

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• java: how for loop work in the case of BigInteger

  - by Sanjeev

  I want to take Input from the user as Big-Integer and manipulate it into a For loop BigInteger i; for(BigInteger i=100000;i<=1;i--){ i=i+i; } But it won't work can any body help me.

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• Binary Addition. Is it overflow?

  - by xbonez

  Binary values are in 2s Complement form. If I am to add 110001 (-15) and 101110 (-18), and the answer has to be stored in a 6-bit integer, is this an underflow/overflow.

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• Is this possible in Java: Map<SomeObject, Map<SomeOtherObject>>?

  - by davek

  Is this possible in Java: Map<SomeObject, Map<SomeOtherObject>>? I'm trying Map<Integer, Map<String>> am getting an "Incorrect number of arguments for type Map; it cannot be parameterized with arguments " error.

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• Can doubles be used to represent a 64 bit number without loss of precision

  - by Kop

  I want to use lua (that internally uses only doubles) to represent a integer that can't have rounding errors between 0 and 2^64-1 or terrible things will happen. Is it possible to do so?

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• shell script array length

  - by Dipro Sen

  I assume arguments to my shell scripts willbe ./x.sh subject N file1 file2 fileN So I am splicing argv from 3 till end candidates=${@:3} now I want to check whether length of candidates is same as given N I am trying with echo $((${#candidates[@]})) which is always returning 1. I can do echo "$#-2" | bc but, I shouldn't I be able to get array size ? I can use bc to do integer comparison. but I've to know the size of `candidates array which I am not getting properly.

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• c program tringle

  - by Johnathon

  C program that accepts three integer values from the user representing the three sides of a triangle. echo whether the 3 numbers makes a equilateral, scalene or isosceles triangle.

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• How to check how many times something occurs in a string in PHP

  - by John

  I want to check how many instances of the letter "a" appears in a certain string. What is the function for this? I need it to return an integer value.

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• The internal implementation of R's dataset

  - by Yin Zhu

  I am trying to build a data processing program. Currently I use a double matrix to represent the data table, each row is an instance, each column represents a feature. I also have an extra vector as the target value for each instance, it is of double type for regression, it is of integer for classification. I want to make it more general. I am wondering how what kind of structure R uses to store a dataset, i.e. the internal implementation in R.

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• What is fastest way to find number of matches between arrays?

  - by John Sheares

  Currently, I am testing every integer element against each other to find which ones match. The arrays do not contain duplicates within their own set. Also, the arrays are not always equal lengths. Are there any tricks to speed this up? I am doing this thousands of times, so it starting to become a bottle neck in my program, which is in C#.

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• Is possible overwriting a Doctrine model in Symfony?

  - by user248959

  Hi, is possible overwriting a Doctrine model in Symfony? I'm trying no change a "notnull" property, but i can get it.. In 'plugins/sfDoctrineGuardPlugin/config/doctrine/schema.yml': sfGuardUser: actAs: [Timestampable] columns: id: type: integer(4) primary: true autoincrement: true username: type: string(128) notnull: true unique: true #... And in 'config/doctrine/schema.yml': sfGuardUser: columns: username: type: string(128) notnull: false unique: true Then "build-all-reload" but it doesn't change.. Any idea? Javi

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• need help with a simple SQL update statement.

  - by Tony

  There's a field with type of varchar. It actually stores a float point string. Like 2.0 , 12.0 , 34.5 , 67.50 ... What I need is a update statement that remove the ending zeros of fields like 2.0 , 12.0 , change them to their integer representation , that is 2 , 12 ...,and leave 3.45 , 67.50 unchanged . How should I do this ? I am using oracle 10.

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• Object or primitive type

  - by John

  Hi, Can someone explain to me the usage of Integer, Boolean etc in place of their primitive types in JAVA? I can't seem to grasp the advantages their are providing. They seem to create unnecessary problems of handling null values. Thanks!

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• Copy List of Structures to Excel Range

  - by KDP

  Does anyone know how to copy a VB.Net list of structures to an Excel range? It's not hard to do with an array, but I can't get a list of structures to work. Example: Structure MyStruct Dim MyField1 as String Dim MyField2 as Integer End Structure Dim MyList As New List(Of MyStruct) ...populate list of structures... Dim rng as Excel.Range = MySheet.Range("A1","B9") rng.??? = MyList '*** This is where I get stuck. ***

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• How do I customize the ASP.Net Bubble Event to pass an additional variable?

  - by CowKingDeluxe

  I am using BubbleEvent to give events from a web user control to its parent (which is a Default.aspx with code behind page). I would like to use BubbleEvent to not only pass the sender and event, but also an integer or another variable. Is there a way to add a parameter to the BubbleEvent, or is there a different way I should be approaching this?

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• Better alternative to autonumber primary keys

  - by Comrad_Durandal

  I am looking for a better primary key than the autonumber data type, namely for the reason that it's limited to a long integer, when I really just need the field to reflect a number or text string that will never ever repeat, no matter HOW many records are added or deleted from the table. The problem is I am not sure how to implement something like turning the current date and time into a hexadecimal string and using that as a unique field I can use as a primary key. Am I just being too paranoid about running out of space?

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• How to mutibind three properties, to dispatch the last change to all properties?

  - by WPFadvocate

  In WPF, I've three objects exposing the same DependencyProperty (let's say it's an integer). I want all three property values to remain synchronized, i.e. that whenever the int value changes in an object, this value is propagated to the two other objects. I think of multibinding to do the job, but I don't know how to detect which object changed, thus which value should be used and propagated to the other objects.

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• RSA PKCS1 implementation in Python

  - by user307016

  I'm working on the RSA PKCS1 implementation in Python,here's the message block i got: m = [0,2,random paddings,0,message integers] I read the RFC2313,and get a equation seems for transforming the message block object into an big-edian integer. I just get confused about how to transform it in Python. Any help would be appreciated.

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• Ordering sql query results

  - by user343409

  My sql query gives the columns: product_id (which is an integer) pnl (which is float - can be negative) I get more than 100 rows. I want to filter out the top 40 rows based on abs(pnl). But the results should be ordered by pnl column only and not by abs(pnl). I want to do this for MSSQL 2005. Is there a way to do this?

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• Perl, convert hash to array

  - by Mike

  If I have a hash in Perl that contains complete and sequential integer mappings (ie, all keys from from 0 to n are mapped to something), is there a means of converting this to an Array? I know I could iterate over the key/value pairs and place them into a new array, but something tells me there should be a built-in means of doing this.

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• Assigning int to byte in java?

  - by user303218

  int val =233; byte b = (byte)val; System.out.println(b); I have a simple case, like one integer with some value & i want to convert that value & place in the byte type for output. But in this case negative value is coming? How to successfully place the int value to byte type.

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• How to change a JLabel's text in a loop without switching so fast the user can't see it?

  - by guilgamos

  I want to create a simple clock using Java. The code is so simple that I will give an example: for(int i=0;i<=60;i++) jLabel11.setText( Integer.toString(i) ); The problem is while I'm running my program the result didn't show each update in sequence. It show only the 60 digit immediately, without showing the change from 1 to 2 to 3 ... How can i fix this problem?

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• Assigning IDs to instances of a class (Pythonic)

  - by mellort

  I want to have each instance of some class have a unique integer identifier based on the order that I create them, starting with (say) 0. In Java, I could do this with a static class variable. I know I can emulate the same sort of behavior with Python, but what would be the most 'Pythonic' way to do this? Thanks

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• Cross platform millisecond timer lasting more than 49 days?

  - by Cetra

  Hey guys, I'm going to be developing a small dedicated server in C/C++ that will require uptime of forever. I've been looking into some time functions as millisecond timing is required for calculations. I have 2 problems that I'm facing: Using a 32bit integer to store the number of milliseconds since the operation began will wrap around at about the 49 days mark resetting to zero. There doesn't seem to be any standard system calls for getting elapsed milliseconds that are platform independant What should I do to resolve both these issues?

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