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  • I have applied a check for not allowing alphabets.But its not working.....

    - by bhavna raghuvanshi
    import java.util.Scanner; public class Main extends Hashmap{ public static void main(String[] args) { Hashmap hm = new Hashmap(); int x=0; Scanner input = new Scanner(System.in); do{ System.out.print("Enter any integer value between 1 to 12: "); x = input.nextInt(); }while(x<=0 || x>12); Scanner sc = new Scanner(System.in); //int number; do { while (!sc.hasNextInt()) { System.out.println("That's not a number!"); sc.next(); } x = sc.nextInt(); }while(x>=0); String month = hm.getEntry(x); System.out.println(month); } } here I need to restrict user from entering an alphabet.But its not working. pls help...

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  • Echoing a pseudo column value after a COUNT

    - by rob - not a robber
    Hi Gang... Please don't beat me if this is elementary. I searched and found disjointed stuff relating to pseudo columns. Nothing spot on about what I need. Anyway... I have a table with some rows. Each record has a unique ID, an ID that relates to another entity and finally a comment that relates to that last entity. So, I want to COUNT these rows to basically find what entity has the most comments. Instead of me explaining the query, I'll print it SELECT entity_id, COUNT(*) AS amount FROM comments GROUP BY entity_id ORDER BY amount DESC The query does just what I want, but I want to echo the values from that pseudo column, 'amount' Can it be done, or should I use another method like mysql_num_rows? Thank you!!!

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  • What's the proper way to fork() in FastCGI ?

    - by eugene y
    I have an app running under Catalyst+FastCGI. And I want it to fork() to do some work in background. I used this code for plain CGI long ago: defined(my $pid = fork) or die "Can't fork: $!"; if ($pid) { # print response exit 0; } die "Can't start a new session: $!" if setsid == -1; close STDIN or die $!; close STDOUT or die $!; close STDERR or die $!; # do some work in background I tried some variations on this under FastCGI but with no success. How should forking be done under FastCGI?

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  • How can I replace a line which contains only -------- by |||

    - by mimou
    I have something like: ------------------------------------------------------------------------ r2 | username | 2011-01-16 16:52:23 +0100 (Sun, 16 Jan 2011) | 1 line Changed paths: D /foo Removed foo ------------------------------------------------------------------------ r1 | username | 2011-01-16 16:51:03 +0100 (Sun, 16 Jan 2011) | 1 line Changed paths: A /foo created foo ------------------------------------------------------------------------ My target is to identify the file added by the "username" in a specific date. Thus, I need to have the combination (username, 16 Jan 2011, A) to insure that it is the right file ands then print foo. My idea is to: delete the white spaces change the newlines into | get rid of the --------------- and replace them with newlines but the problem is that I couldn't replace the ------- since they are mixed with other characters. ------------------------------------------------------------------------ |r2|username|2011-01-1616:52:23+0100(Sun,16Jan2011)|1line|Changedpaths:|D/foo|Removedfoo| ------------------------------------------------------------------------ |r1|username|2011-01-1616:51:03+0100(Sun,16Jan2011)|1line|Changedpaths:|A/foo|createdfoo| ------------------------------------------------------------------------ So I thought it would be a good idea to start by replacing the --------------- by a special character like ||| and then change this character by a newline using awk FS=||| OFS=\n Can anyone help me! thanks

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  • Sending message from one server to another in Twisted

    - by Casey Patton
    I've implemented my servers in the following way: def makeServer(application, port): factory = protocol.ServerFactory() factory.protocol = MyChat factory.clients = [] internet.TCPServer(port, factory).setServiceParent(application) application = service.Application("chatserver") server1 = makeServer(application, port=1025) server2 = makeServer(application, port=1026) server3 = makeServer(application, port=1027) Note that MyChat is an event handling class that has a "receiveMessage" action: def lineReceived(self, line): print "received", repr(line) for c in self.factory.clients: c.transport.write(message + '\n') I want server1 to be able to pass messages to server2. Rather, I want server1 to be treated as a client of server2. If server1 receives the message "hi" then I want it to send that same exact message to server2. How can I accomplish this?

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  • Why are gettimeofday() intervals occasionally negative?

    - by Andres Jaan Tack
    I have an experimental library whose performance I'm trying to measure. To do this, I've written the following: struct timeval begin; gettimeofday(&begin, NULL); { // Experiment! } struct timeval end; gettimeofday(&end, NULL); // Print the time it took! std::cout << "Time: " << 100000 * (end.tv_sec - begin.tv_sec) + (end.tv_usec - begin.tv_usec) << std::endl; Occasionally, my results include negative timings, some of which are nonsensical. For instance: Time: 226762 Time: 220222 Time: 210883 Time: -688976 What's going on?

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  • How to implement python to find value between xml tags?

    - by Harshit Sharma
    I am using google site to retrieve weather information , I want to find values between XML tags. Following code give me weather condition of a city , but I am unable to obtain other parameters such as temperature and if possible explain working of split function implied in the code: import urllib def getWeather(city): #create google weather api url url = "http://www.google.com/ig/api?weather=" + urllib.quote(city) try: # open google weather api url f = urllib.urlopen(url) except: # if there was an error opening the url, return return "Error opening url" # read contents to a string s = f.read() # extract weather condition data from xml string weather = s.split("<current_conditions><condition data=\"")[-1].split("\"")[0] # if there was an error getting the condition, the city is invalid if weather == "<?xml version=": return "Invalid city" #return the weather condition return weather def main(): while True: city = raw_input("Give me a city: ") weather = getWeather(city) print(weather) if __name__ == "__main__": main() Thank You

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  • How can I extract and save values from an XML file in Perl?

    - by Freddy
    Here is what I am trying to do in a Perl script: $data=""; sub loadXMLConfig() { $filename="somexml.xml" $data = $xml-XMLin($filename); } sub GetVariable() { ($FriendlyName) = @_; switch($FriendlyName) { case "My Friendly Name" {print $data-{my_xml_tag_name}} .... .... .... } } The problem is I am using Perl just because I am reading from an XML file, but I need to get these variables by a shell script. So, here is what I am using: $ perl -e 'require "scrpt.pl"; loadConfigFile(); GetVariable("My Variable")' This works exactly as expected, but I need to read the XML file every time I am getting a variable. Is there a way I could "preserve" $data across shell calls? The idea is that I read the XML file only once. If no, is there is a more simple way I could do this? These are the things I can't change: Config File is an XML Need the variables in a shell script

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  • inet_ntoa problem

    - by codingfreak
    Hi I am declaring following variables unsigned long dstAddr; unsigned long gateWay; unsigned long mask; These variables contains ipaddresses in network byte order. So when I am trying to print them using inet_ntoa function for mask variable sometimes it is printing strange values printf("%s\t%s\t%s\t",inet_ntoa(dstAddr),inet_ntoa(gateWay),inet_ntoa(mask)); 192.168.122.0 0.0.0.0 0.255.255.255 but it should be 192.168.122.0 0.0.0.0 255.255.255.0 So is this because of inet_ntoa ??

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  • KeyError this says that key(partner) is not in dict ?

    - by Ansh Jain
    I am trying to make an chat application using python and django. I almost complete it and its working fine for 8-10 minutes when two persons are chatting after that certain time it shows an error. here is the traceback : - Traceback (most recent call last): File "\Django_chat\django_chat\chat\views.py", line 55, in receive message = chatSession.getMessage(request.session['partner'],request.session['uid'],afterTime) File "C:\Python26\lib\site-packages\django\contrib\sessions\backends\base.py", line 47, in __getitem__ return self._session[key] KeyError: 'partner' here is the receive module :- def receive(request): message received by this user chatSession = chat() data = request.POST afterTime = data['lastMsgTime'] try: message = chatSession.getMessage(request.session['partner'],request.session['uid'],afterTime) except: #partnerId = virtual_users.objects.get(id=request.session['uid']).partner print('there is an error in receive request') traceback.print_exc(file=open("/myapp.log","a")) msg = serializers.serialize("json", message) return HttpResponse(msg) Please Help me :( thanks Ansh J

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  • How can I convert a file full of unix time strings to human readable dates?

    - by skymook
    I am processing a file full of unix time strings. I want to convert them all to human readable. The file looks like so: 1153335401 1153448586 1153476729 1153494310 1153603662 1153640211 Here is the script: #! /bin/bash FILE="test.txt" cat $FILE | while read line; do perl -e 'print scalar(gmtime($line)), "\n"' done This is not working. The output I get is Thu Jan 1 00:00:00 1970 for every line. I think the line breaks are being picked up and that is why it is not working. Any ideas? I'm using Mac OSX is that makes any difference.

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  • Determine if PowerShell function is running as part of a pipeline?

    - by Richard Cook
    Can a PowerShell function determine if it is being run as part of a pipeline? I have a function which populates an array with instances of FileInfo which I would like to "yield" to the pipeline if the function is being run this way or produce some pretty output if the function is being invoked by itself from the command line. function Do-Something { $file_infos = @() # Populate $file_infos with FileInfo instances... if (INVOKED_IN_PIPELINE) { return $file_infos } else { foreach ($file_info in $file_infos) { write-host -foregroundcolor yellow $file_info.fullname } } } Basically, I'm trying to figure out how to implement INVOKED_IN_PIPELINE. If it is run in a pipeline (e.g. Do-Something | format-table fullname), I would simply yield the array, but if run directly (e.g. Do-Something), it would simply pretty-print the output. Is there a way to do this? If there is a more "idiomatic" way to achieve this kind of thing, I would also be interested to know.

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  • IE8 + Jquery ajax call giving parsererror from dJango : for json data which seems valid in Firefox

    - by PlanetUnknown
    The ajax call works fine in FF. the data returned is in JSON here is an example from FF firebug - {"noProfiles": "No profiles have been created, lets start now !"} When I try to print the error in IE8 (& in compatibility modes as well), it says "parsererror". But the output seems to be valid JSON. Here is the ajax function call I'm making. Any pointers would be great ! $.ajax({ type: "GET", url: "/get_all_profile_details/", data: "", dataType: "json", beforeSend: function() {alert("before send called");}, success: function(jsonData) { alert("data received"); }, error: function(xhr, txt, err){ alert("xhr: " + xhr + "\n textStatus: " + txt + "\n errorThrown: " + err); } }); The alerts in the error function above give - xhr:<blank> textstatus:parsererror errorThrown: undefined Any pointers would be great ! Note : jquery : 1.3.2

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  • Perl to output processed XML file encoded as UTF-8 with UNIX line endings (in Win32 environment)?

    - by Umber Ferrule
    Running ActiveState Perl 5.8.8 on WinXP. As the title suggests, I'd like to output an XML file as UTF-8 with UNIX line endings. I've looked at the PerlDoc for binmode, but am unsure of the exact syntax (if I'm not barking up the wrong tree). The following doesn't do it (forgive my Perl - it's a learning process!): sub SaveFile { my($FileName, $Contents) = @_; my $File = "SAVE"; unless( open($File, ">:utf-8 :unix", $FileName) ) { die("Cannot open $FileName"); } print $File @$Contents; close($File); } Any suggestions? Thanks.

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  • Perl code -need some understanding.

    - by benjamin button
    Hi i have a perl code below: foreach (@tmp_cycledef) { chomp; my ($cycle_code, $close_day, $first_date) = split(/\|/, $_,3); $cycle_code =~ s/^\s*(\S*(?:\s+\S+)*)\s*$/$1/; $close_day =~ s/^\s*(\S*(?:\s+\S+)*)\s*$/$1/; $first_date =~ s/^\s*(\S*(?:\s+\S+)*)\s*$/$1/; #print "$cycle_code, $close_day, $first_date\n"; $cycledef{$cycle_code} = [ $close_day, split(/-/,$first_date) ]; } the value of tmp_cycledef comes from output of an sql query: select cycle_code,cycle_close_day,to_char(cycle_first_date,'YYYY-MM-DD') from cycle_definition d order by cycle_code; can anybody tell me what exactly is happening inside the for loop? thanks in advance.

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  • How to find full module path of a class to import in other file

    - by Pooya
    I have method that returns module path of given class name def findModulePath(path, className): attributes = [] for root, dirs, files in os.walk(path): for source in (s for s in files if s.endswith(".py")): name = os.path.splitext(os.path.basename(source))[0] full_name = os.path.splitext(source)[0].replace(os.path.sep, '.') m = imp.load_module(full_name, *imp.find_module(name, [root])) try: attr = getattr(m, className) attributes.append(attr) except: pass if len(attributes) <= 0: raise Exception, "Class %s not found" % className for element in attributes: print "%s.%s" % (element.__module__, className) but it does not return the full path of the module, For example I have a python file named "objectmodel" in objects package,and it contains a Model class, So I call findModulePath(MyProjectPath,"Model"). it prints objectmodel.Model but I need objects.objectmodel.Model

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  • File is adding one extra space in each line

    - by SCNCN2010
    I am trying to add all the elements in array using push . then i stored into another file but begining of file i am seeing one whitespeace in every thing .. What is the issue .. any one before face this issue . open FILE , "a.txt" while (<FILE>) { my $temp =$_; push @array ,$temp; } close(FILE); open FILE2, "b.txt"; print FILE2 "@array"; close FILE2;

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  • PHP scandir strange behaviour

    - by kmunky
    ok, so what i'm trying to do is to scan the "previous" folder. $scanned = scandir(".."); foreach($scanned as $file){ if(is_file($file)){ print $file."<br />"; } } even though in my ".." directory i have 20+ files i get just three rows index.jpg index.php template.dtd i noticed that if i don;t use that is_file if clause it returns all file names; but i really need that if clause.

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  • jquery not printing the image in IE 6

    - by pradeep
    if(count > 0){ for(var i= parseInt(start); i < parseInt(count); i++) { link ='<a href="/diabetes/ropimages/origpicdisplay.php?pid='+pid+'&rid='+i+'" target="_blank"><img src="/diabetes/ropimages/thumbpicdisplay.php?pid='+pid+'&rid='+i+'"/><a>&nbsp;&nbsp;'; if(i > start){ $("#content1").append(link);} else{ $("#content1").empty().html(link);} } } i use code like this. it does print images in FF but not in IE6 any solutions for this ?

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  • customisable JSLint

    - by Don
    Hi, I'm looking for a tool that checks JS code, which can be integrated into a Maven build. I need a tool that will check for errors such as use of reserved words as identifiers trailing semi-colon, e.g. var obj = { a: 1, b, 2, } JSLint seems like a perfect candidate, but the problem is that it is too strict, because it also checks for various coding patterns which are (arguably) bad style, but do not actually generate errors in a browser. Examples of such issues include Disallow ++ and -- and Allow one var statement per function If possible, I would like the errors to fail the build, and I would like the other rules to only print warnings (or disable them completely). Obviously, I need the ability to specify which of the available rules I consider errors and which I consider warnings. Thanks, Don

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  • How to generate unique number of 12 digits?

    - by DanSogaard
    I'm working on an app that sends raw data to zebra printer and print out barcodes. And since every item has its own unique barcode, I need to define a variable that automatically generates unique number of 12 digits long. see example: printBar prnt = new printBar("123456789012"); Is there anyway to define a double variable and pass it to a function that return uniqely 12 digits number and pass it over again to the printBar class?. But how to make sure everytime you access it returns a unique value?. I also thought of another way, since am using MS Access db, I can create a column of AutoNumber datatype and assign it to Random, but you don't get the exact 12 digits required, sometimes it generates a value of 10 digits sometimes more or less.

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  • How do Ruby and Python implement their interactive consoles?

    - by sxa
    When implementing the interpreter for my programming language I first thought of a simple console window which allows the user to enter some code which is then executed as a standalone program as a shell. But there are severe problems: If every line of code the user enters is handled as a standalone program, it has to go through the tokenizer and parser and is then just executed by the interpreter - what about functions then? How can the Python/Ruby interactive consoles (IDLE, irb) "share" the code? How is the code entered handled? Example: >> def x: >> print("Blah") >> >> x() Where is the function stored so it can be called at any time again? How can the interactive console take everything entered as obviously one program without executing everything over and over again?

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  • php - get content from second pair of quotes in string

    - by Aaron Turecki
    I'm trying to get the contents of the second quotes and only the second quotes from a string. Right now I'm able to get the contents of all three quotes. What am I doing wrong? Is it possible to just print the second value in the output array? Text 2014-06-02 11:48:41.519 -0700 Information 94 NICOLE Client "[WebDirect] (207.230.229.204) [207.230.229.204]" opening database "FMServer_Sample" as "Admin". PHP if (preg_match_all('~(["\'])([^"\']+)\1~', $line, $matches)) $database_names = $matches[2]; print_r($database); Output [WebDirect] (207.230.229.204) [207.230.229.204], FMServer_Sample, Admin

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  • Python json memory bloat

    - by Anoop
    import json import time from itertools import count def keygen(size): for i in count(1): s = str(i) yield '0' * (size - len(s)) + str(s) def jsontest(num): keys = keygen(20) kvjson = json.dumps(dict((keys.next(), '0' * 200) for i in range(num))) kvpairs = json.loads(kvjson) del kvpairs # Not required. Just to check if it makes any difference print 'load completed' jsontest(500000) while 1: time.sleep(1) Linux top indicates that the python process holds ~450Mb of RAM after completion of 'jsontest' function. If the call to 'json.loads' is omitted then this issue is not observed. A gc.collect after this function execution does releases the memory. Looks like the memory is not held in any caches or python's internal memory allocator as explicit call to gc.collect is releasing memory. Is this happening because the threshold for garbage collection (700, 10, 10) was never reached ? I did put some code after jsontest to simulate threshold. But it didn't help.

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  • Is it bad practice to change state inside of an if statement?

    - by Benjamin
    I wrote some code that looks similar to the following: String SKIP_FIRST = "foo"; String SKIP_SECOND = "foo/bar"; int skipFooBarIndex(String[] list){ int index; if (list.length >= (index = 1) && list[0].equals(SKIP_FIRST) || list.length >= (index = 2) && (list[0] + "/" + list[1]).equals(SKIP_SECOND)){ return index; } return 0; } String[] myArray = "foo/bar/apples/peaches/cherries".split("/"); print(skipFooBarIndex(myArray); This changes state inside of the if statement by assigning index. However, my coworkers disliked this very much. Is this a harmful practice? Is there any reason to do it?

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