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• Why Does My Floating Point Number 0.7 Evaluate At Less Than 0.7

  - by swamy

  void main() { float a=0.5,b=0.7; if(b<0.7) { if(a<0.5) printf("hello"); else printf("world"); } else printf("jsdf"); } Output: world Please give the explanation.

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• Is there some tool to visualize Java class hierarchies and relations?

  - by Niyaz

  Here is my problem: I will provide the source code of my application as input and what I want as output is a visual representation of the relationship between classes, method calls etc. Is there some tool to do this?

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• How do I write the function 'twice' in Haskell?

  - by kunjaan

  I want to write 'twice' function that takes a function and an argument and applies the function twice. However the function that it receives should work on union types. eg. f a -> b f b -> c Output twice f a c f a b f b c f c error

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• my sql insert query not working

  - by Piyush

  I am inserting userId.It is displaying correct but inserting 0 in spite of actual userId. mycode- If(! empty($userIDToCheck) || $userIDToCheck != '' ) { echo $userIDToCheck; $sql = "INSERT INTOpnpdb.ruser(userid) VALUES ('$userIDToCheck');"; mysql_query($sql)or die(mysql_error()); echo "Done"; } Output : pi203713 Done But is database it is inserting "0"???

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• Time display query in sql

  - by shanks

  I have following data UserID UserName LogTime LogDate 1 S 9:00 21/5/2010 1 S 10:00 21/5/2010 1 S 11:00 21/5/2010 1 S 12:00 21/5/2010 Need Output as:- 1 s 9:00 10:00 21/5/2010 1 s 11:00 12:00 21/5/2010

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• How do I make a daemon into a stream in PHP

  - by Itay Moav

  I have a daemon (written in C, but I assume it does not really matter) which outputs messages with printf, and can get input and do stuff with this input (again, not really important what, but he sends those messages to a different machine to be saved there in the DB). My question, how can I make this daemon to be a stream in PHP, so I can hook the input/output of, for example, file_put_contents to this stream.

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• How can I add two projects. Visual Studio 2008

  - by masfenix

  I just created a project so my Solution Explorer looks like this: But I want to add another project which is related to this project but it's going to be a class library and it's going to output a DLL that I could use in any other project. So how can I create a "solution" with multiple projects?

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• How can I have a newline in a string in sh?

  - by juannavarroperez

  This STR="Hello\nWorld" echo $STR produces as output Hello\nWorld instead of Hello World What should I do to have a newline in a string? I'm aware of echo -e, but I'm no sending the string to echo, the string will be used as an argument by another command that doesn't know how to interpret \n as a newline.

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• C++: Short question regarding switch and break

  - by oh boy

  Example: switch( x ) { case y: if ( true ) { break; } cout << "Oops"; break; } If the switch statement selects y, will Oops be written to the standard output? - Is break in switch statements a dynamic keyword like continue which can be called under conditions or static like a closing bracket }?

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• How do you search the text of changelist descriptions in Perforce?

  - by raven

  On occasion, I find myself wanting to search the text of changelist descriptions in Perforce. There doesn't appear to be a way to do this in P4V. I can do it by redirecting the output of the changes command to a file... p4 changes -l > p4changes.txt ...(the -l switch tells it to dump the full text of the changelist descriptions) and then searching the file, but this is rather cumbersome. Has anyone found a better way?

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• C#: do enums cast themselves as strings or integers as appropriate in the context

  - by Craig Johnston

  If I have the enum: public enum VehicleType { Car = 0, Boat = 1, Bike = 2, Spaceship = 3 } and I then do: int X = 10; VehicleType vt = (VehicleType)2; X = X + vt; Console.WriteLine("I travel in a " + vt + " with " + X + " people."); What should the output be in C#?

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• What the heck kind of timestamp is this: 1267488000000

  - by twneale

  And how do I convert it to a datetime.datetime instance in python? It's the output from the New York State Senate's API: http://open.nysenate.gov/legislation/.

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• database assignment

  - by eric

  Hi, Given the following table: CREATE TABLE T1 (A INTEGER NOT NULL); CREATE TABLE T3 (A SMALLINT NOT NULL); INSERT T1 VALUES (32768.5); SELECT * FROM T1; INSERT T3 SELECT * FROM T1; SELECT * FROM T3; What is the output of above query? If any error occured please declare the line of it?Explain your answer!

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• how to configure jetty 7 to use syslog or log4j

  - by egemen ozden

  I am looking for a way to direct all the jetty 7 logging to syslog. My current configuration dumps everything to JETTY_HOME/logs/.. After some initial ivestigation, it seems I should change JETTY_HOME/etc/jetty-logging.xml, but this does not look straightforward. It looks like I should create a new PrintStream implementation which sends its output to syslog and redirecting stderr and stdout to that class in jetty-logging.xml. any easier way to do that or to make jetty log directly to log4j ? Thanks

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• Using cfpdf to display pdf files

  - by cf_PhillipSenn

  I have a page where I need to display a pdf and an "I agree" button. Q: Do I use cfpdf to create a thumbnail of the pdf and display the resulting output? Chapter 32 of cfWack 8 talks about using cfpdf.

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• PHP remove the first index of an array and re-index

  - by Mithun

  I have an array like Array ( [0] => A [2] => B [4] => C [6] => D ) I want to remove the first element and then re-index array to get the output ( [0] => B [1] => C [2] => D ) Which PHP function i need to use?

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• Best practices for handling binary data in Ruby?

  - by StackedCrooked

  What are the best practices for reading and writing binary data in Ruby? In the code sample below I needed to send a binary file using over HTTP (as POST data): f = File.new("resp.der", "r") # binary file begin while true out.syswrite(f.sysread(1)) # out is an output stream (type IO) end rescue EOFError => err puts "Sent response." end While this code seems to do a good job, it probably isn't very idiomatic. How can I improve it?

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• mysql query to select the bottom values from a table

  - by S.PRATHIBA

  Hi all, I have the following table. mysql> select * from consumer2; SERVICE_ID SERVICE_TYPE CONSUMER_FEEDBACK 31 PRINTER 1 32 PRINTER -1 33 PRINTER 0 34 PRINTER -1 35 PRINTER 0 31 PRINTER 0 32 PRINTER 1 35 PRINTER 1 31 PRINTER 0 From the above table i need to select the bottom 4 values using mysql i need to get the output as follows SERVICE_ID SERVICE_TYPE CONSUMER_FEEDBACK 31 PRINTER 0 32 PRINTER 1 35 PRINTER 1 31 PRINTER 0 Please help me.Thank u in advance.

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• removing <br/> from GET request

  - by tking

  I'm using a get request to get some page data but need to strip the break tags from the finished file. Basically what I'm doing is taking the output of the get request and saving it to a file but it has hundereds of break tags in it I need removed. I'm fine with running a batch or vb script after the file is saved to remove the tags but I'm not sure how on how to do that either. So far the only solutions I have seen is to remove entire lines.

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• expression issue for derived column in ssis package

  - by happysmile

  i have an string like this format in my case i need to extract only the characters from string case 1)12AB 2)SD12 3)1WE4 output 1)AB 2)SD 3)WE i need to extract only the characters i am using this expresion in the dervied column in SSIS package SUBSTRING(MediaIDCode,1,2) but this expresssion works for only this condition 1)12AB i need to get an expressioin that works for all the conditions above any help would be great Thanks Prince

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• Printing values in special format using printf

  - by yael

  I need to print the following values with printf as the follwoing around like this: printf "[`date +%d"/"%b"/"%G"-"%T`] [WARN] $PARAM1 $PARAM2 $PARAM3 The required output: [02/Jun/2010-11:08:42] [WARN] val1....val2...val3

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• How can I find unused methods in a Ruby app?

  - by Geo

  I have a Ruby app with a lot of classes/modules, and some of them are not used. Is there an easy way of finding out which? I was thinking to do a profile, and then work with it's output. Any other ideas?

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• PHP Speed - Many Echos vs Building a String

  - by Chris

  Wondering if anyone knows if either of these methods would produce an output faster: Method 1 for ($i=1;$i<99999;$i++) { echo $i, '<br>'; } or Method 2 for ($i=1;$i<99999;$i++) { $string .= $i . '<br>'; } echo $string; Thanks for any input you have.

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• jetty deploy problem

  - by user550748

  I had deploy a project in jetty(jetty-wtp plugin) in eclipse server. when i start jetty server the console output wrong: java.lang.NoClassDefFoundError: javax/annotation/security/RunAs i also add common-annotations.jar to this project lib but cann't resolve this problem. my installed environment: JDK 1.6.0 jetty 8.0.0.M2 jetty-wtp http://download.eclipse.org/jetty/updates/jetty-wtp/development can anyone help me?:)

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• Using Lua, check if file is a directory

  - by PeterMmm

  If i have this code local f = io.open("../web/", "r") print(io.type(f)) -- output: file how can i know f points to a directory ?

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