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  • Generate RTT values

    - by Jean Gauthier
    Hi all, I'm writing a Java applet where I should be able to simulate a connection between two hosts. Hence I have to generate packet round-trip times at random. These RTTs can go from ~0 to infinity, but are typically oscillating around some average value (i.e. an extremely large or small value is very improbable but possible). I was wondering if anyone had an idea of how I could do this? Thanks in advance

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  • Time complexity to fill hash table (homework)?

    - by Heathcliff
    This is a homework question, but I think there's something missing from it. It asks: Provide a sequence of m keys to fill a hash table implemented with linear probing, such that the time to fill it is minimum. And then Provide another sequence of m keys, but such that the time fill it is maximum. Repeat these two questions if the hash table implements quadratic probing I can only assume that the hash table has size m, both because it's the only number given and because we have been using that letter to address a hash table size before when describing the load factor. But I can't think of any sequence to do the first without knowing the hash function that hashes the sequence into the table. If it is a bad hash function, such that, for instance, it hashes every entry to the same index, then both the minimum and maximum time to fill it will take O(n) time, regardless of what the sequence looks like. And in the average case, where I assume the hash function is OK, how am I suppossed to know how long it will take for that hash function to fill the table? Aren't these questions linked to the hash function stronger than they are to the sequence that is hashed? As for the second question, I can assume that, regardless of the hash function, a sequence of size m with the same key repeated m-times will provide the maximum time, because it will cause linear probing from the second entry on. I think that will take O(n) time. Is that correct? Thanks

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  • Generate Javadoc for interfaces only?

    - by ipkiss
    Hi, I am finding a way to write a script that I can generate javadoc for my program's Interfaces only (not for public classes). I have tried Eclipse built-in tool and even JAutodoc tool but have not been successful yet. Does anyone have some ideas, please? Thanks.

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  • Getting values from the html to the controller

    - by tina
    Hi, I'm trying to access the values a user introduces in a table from my controller. This table is NOT part of the model, and the view source code is something like: <table id="tableSeriales" summary="Seriales" class="servicesT" cellspacing="0" style="width: 100%"> <tr> <td class="servHd">Seriales</td> </tr> <tr id="t0"> <td class="servBodL"> <input id="0" type="text" value="1234" onkeypress = "return handleKeyPress(event, this.id);"/> <input id="1" type="text" value="578" onkeypress = "return handleKeyPress(event, this.id);"/> . . . </td> </tr> </table> How can I get those values (1234, 578) from the controller? Receiving a formcollection doesn't work since it does not get the table... Thank you.

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  • set border for table with overflow is auto

    - by lucky
    Hi All, I would like to have a border for the table with class name as "wanttosetborder". Without the div it is setting border for this table. With the div tag, it is setting border till the last row before div tag,(i.e a line after H2 is displayed) after that no border is displayed. Please find the code below. <html> <head> <head> <style type="text/css"> #user{width: 50px;height:150px;overflow:auto;position:absolute} </style> </head> </head> <body> <TABLE class="wanttosetborder" CELLPADDING=1 cellspacing="1" border="1"> <tr><td>ABC</td></tr> <tr><td>H2</td></tr> <tr> <td> <div id="user"> <table> <?php for($i=1; $i<=10;$i++) { ?> <tr><td>123</td> </tr> <?php }?> </table> </div> </td> </tr> </TABLE> </body> </html>

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  • How to generate irregular ball shapes?

    - by tomato
    What kind of algorithms would generate random "goo balls" like those in World of Goo. (btw, if you haven't played it yet, highly recommended). I'm using Proccesing, but any generic algorithm would do. I guess it boils down to how to "randomly" make balls that are kind of round, but not perfectly round, and still looking realistic. Thanks in advance!

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  • PHP: saving multiple tuples to the same table

    - by Binaryrespawn
    Hi all, I am trying to save data into the same table several times from the same $_POST array. You see, on my registration form a family is allowed to specify the names, gender and age of all members they wish to bring along. This data is being stored in a database table called aditional_member. Based on family size, I am dynamically generating html table rows where each row has the number of input fields required. <tr id="additionalmember_3"> <td><input type="text" name="first_name1" maxlength="50" value="" /></td> <td><input type="text" name="last_name1" maxlength="50" value="" /></td> td><select name="gender1" value="" ><option value='Male'>Male</option><option value='Female'>Female</option></select></td> <td><select name="age_group"value="" ><option value='18 to 30'>18 to 30</option><option value='31 to 60'>31 to 60</option></select></td> </tr> When I POST, let us say I have three sets of input(3 table rows as above), Is there a simple way to insert into the addional_member table the data from row one, then row two, and so on. I tried looping the insert statement, which failed. I am basically open to suggestions, I do not need to use a table. Any ideas, Thank you.

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  • How to Generate XSL code automatically ?

    - by B. Kumar
    Hello Everyone, I have UI which provide the facility to create own format by using drag and drop utility. I have also xml file which contains the data. Now task is how to automatically generate the .xsl file of the dynamically designed format for the data stored in xml form. If you have any idea about the solution of the above problem. I will thankful for any help regarding this… Thanks B. Kumar

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  • Getting table schema from a query

    - by Appu
    As per MSDN, SqlDataReader.GetSchemaTable returns column metadata for the query executed. I am wondering is there a similar method that will give table metadata for the given query? I mean what tables are involved and what aliases it has got. In my application, I get the query and I need to append the where clause programically. Using GetSchemaTable(), I can get the column metadata and the table it belongs to. But even though table has aliases, it still return the real table name. Is there a way to get the aliase name for that table? Following code shows getting the column metadata. const string connectionString = "your_connection_string"; string sql = "select c.id as s,c.firstname from contact as c"; using(SqlConnection connection = new SqlConnection(connectionString)) using(SqlCommand command = new SqlCommand(sql, connection)) { connection.Open(); SqlDataReader reader = command.ExecuteReader(CommandBehavior.KeyInfo); DataTable schema = reader.GetSchemaTable(); foreach (DataRow row in schema.Rows) { foreach (DataColumn column in schema.Columns) { Console.WriteLine(column.ColumnName + " = " + row[column]); } Console.WriteLine("----------------------------------------"); } Console.Read(); } This will give me details of columns correctly. But when I see BaseTableName for column Id, it is giving contact rather than the alias name c. Is there any way to get the table schema and aliases from a query like the above? Any help would be great!

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  • Generate 2D cross-section polygon from 3D mesh

    - by nornagon
    I'm writing a game which uses 3D models to draw a scene (top-down orthographic projection), but a 2D physics engine to calculate response to collisions, etc. I have a few 3D assets for which I'd like to be able to automatically generate a hitbox by 'slicing' the 3D mesh with the X-Y plane and creating a polygon from the resultant edges. Google is failing me on this one (and not much helpful material on SO either). Suggestions?

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  • Auto generate varchar Ticket number via DB...

    - by Rusty
    Hello, I'm looking for suggestion on how to get the DB to auto generate Ticket numbers (preferably via the SQL DB) for a varchar column. I have the following tables in the DB: Activities & Cases and would prefer the format to be "Act000001" or "Cse000001". This would be something similar to the identity column property. Any suggestion would be highly appreciated. Thanks. Rusty

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  • generate sha256 with openssl and C++

    - by Stanislav Palatnik
    Hello, I'm looking to create a hash with sha256 using openssl and C++. I know there's a similar post about this here: http://stackoverflow.com/questions/918676/generate-sha-hash-in-openssl, but I'm looking to specifically create sha256. UPDATE: Seems to be a problem witht he include paths. It can't find any openssl functions even though I included #include "openssl/sha.h" and I included the paths in my build -I/opt/ssl/include/ -L/opt/ssl/lib/ -lcrypto

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  • Tree data in MySql database table

    - by Robert Koritnik
    I have a table that uses Adjacency list model for hierarchy storage. My most relevant columns in this table are therefore: ItemId // is auto_increment ParentId Level ParentTrail // in the form of "parentId/../parentId/itemId" then I created a before insert tigger, that populates columns Level and ParentTrail. Since the last column also includes current item's ID I had to use a trick in my trigger because auto_increment columns are not available in the before insert trigger. So I get that value from the information_schema.tables table. All works fine, until I try to write an update trigger, that would update my item and its descendants when the item changes its parent (ParentId has changed). But I can't make an update on my table inside the update trigger. All I can do is to change current record's values but not other's. I could use a separate table for hierarchy data, but that would mean that I would also have to create a view that would combine these two tables (1:1 relation) and I would like to avoid this is at all possible. Is there a way to have all these in the same table so that these fields (Level and ParetTrail) set/update themselves automagically using triggers?

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  • How to generate NUnit fixtures programmatically?

    - by pmezard
    Hello, Say I have a test like: void TestSomething(int someParam) { // Test code } I would like to execute this test with a set of "someParam" values. I could write explicit [Test] fixtures calling TestSomething() with the parameters, which means having N methods for every TestSomething() method. I could write another [Test] method looping on "someParam" values and calling TestSomething(), it means 2 methods for every test, and the test report is not as good as with individual TestSomethingWithXValue() methods. So, is there any way to programmatically generate fixtures for every test methods and input values?

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  • Generate terminal graphics

    - by Werner
    Hi, which open source software options exist for generating terminal graphics? I mean, there is for instance the nice matplotlib, which can generate beautiful plots from data, in PNG or similar formats. But there are similar alternatives for generating just kind of ascii graphics? Thanks

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  • How to generate a checksum for an java object

    - by Alex
    hi there, I'm looking for an solution to generate a checksum for any type of java object, which remains the same for every exection of an application which produces the same object. I tried it with object.hashcode(), but as I read in the api ....This integer need not remain consistent from one execution of an application to another execution of the same application. thank you, best regard alex

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  • .NET Generate email text in Outlook from Word

    - by Chapso
    I am attempting to generate the body of an email in Outlook 2007 from the text of a Word 2007 document in VB. I have access to both the Word and Outlook object libraries, and I can read from the Word document to get a string and write it to Outlook, but I need to keep the formatting from the Word document intact. The purpose will be to allow users to edit the word document and always have the emails my program generates be in sync with the document. Does anyone know how to do this?

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  • Filtering GridView Table Rows using a Drop-Down List in ASP.NET 3.5

    In the real world ASP.NET 3.5 websites rely heavily on the MS SQL server database to display information to the browser. For the purposes of usability it is important that users can filter some information shown to them particularly large tables. This article will show you how to set up a program that lets users filter data with a GridView web control and a drop-down list.... SW Deployment Automation Best Practices Free Guide for IT Leaders: Overcoming Software Distribution & Mgmt Challenges.

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  • SQL Databases and table design/organization

    - by John McMullen
    (NOOB disclaimer) I'm working on a system (a type of map), that is accessed mostly via 3 fields: ID (auto incremented), X coordinate, and Y coordinate. As it is right now, i have all data on the map, stored in 1 table. Whenever the map display is loaded it simply queries the database for contents in x and y, and the DB gives the data (other fields in the same entry). If an item on the map is doing something, it has a flag saying its doing something, and then has an ID of the action in another table holding that type of 'actions'. Essentially, for all map data, its stored in 1 table. All actions of a certain type are stored in their own table. I'm a noob, and i'm wondering what the most effective/efficient structure for such a design? (a map that has items, and each item has stats/actions). I'm using PHP atm, using standard SQL queries to get my data. Should i split up the tables so that there are only x number of entries on a table? (coord range limits)? Should it just keep growing and growing? There's a lot of queries to the table... so just tryin to see what is best :/

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  • How to use DML on Oracle temporary table without generating much undo log

    - by Sambath
    Hi, Using an Oracle temporary table does not generate much redo log as a normal table. However, the undo log is still generated. Thus, how can I write insert, update, or delete statement on a temporary table but Oracle will not generate undo log or generate as little as possible? Moreover, using /+append/ in the insert statement will generate little undo log. Am I correct? If not, could anyone explain me about using the hint /+append/? INSERT /*+APPEND*/ INTO table1(...) VALUES(...); Thank you.

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  • Library to Generate UML Diagrams

    - by Carlos Garces
    My project actually use XML files to define flow of the application. I like to convert this XML a image that represent the flow, to use it in the documentation. There is any c# library that help with the graphical part of a UML generation? There is any XML standard format to generate UML flows that can be converted to IMG? I need something like this

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