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Articles indexed in October 2013

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  • Rails / JBuilder - Entity array with has_many attributes

    - by seufagner
    I have two models, Person and Image and I want return an json array of Persons with your Images. But I dont want return all Image attributes, but produces a different result. Code below: class Person < ActiveRecord::Base has_many :images, as: :imageable validates :name, presence: true accepts_nested_attributes_for :images, :reject_if => lambda { |img| img['asset'].blank? } end class Image < ActiveRecord::Base belongs_to :imageable, polymorphic: true mount_uploader :asset, ImageUploader validates :asset, presence: true end zzz.jbuilder.json template json.persons(@rodas, :id, :name, :images) json produced: { "rodas": [{ "id": 4, "name": "John", "images": [ { "asset": { "url": "/uploads/image/xxxx.png" } }, { "asset": { "url": "/uploads/image/yyyyy.jpeg" } } ]}, { "id": 19, "name": "Mary", "images": [ { "asset": { "url": "/uploads/image/kkkkkkk.png" } } ] }] } I want something like: { "rodas": [ { "id": 4, "name": "John", "images": [ "/uploads/image/xxxx.png" , "/uploads/image/yyyy.jpeg" ] }, { "id": 10, "name": "Mary", "images": [ "/uploads/image/dddd.png" , "/uploads/image/xxxx.jpeg" ] } ]}

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  • Issue with javascript array object

    - by ezhil
    I have the below JSON response. I am using $.getJSON method to loads JSON data and using callback function to do some manipulation by checking whether it is array as below. { "r": [{ "IsDefault": false, "re": { "Name": "Depo" }, "Valid": "Oct8, 2013", "Clg": [{ "Name": "james", "Rate": 0.05 }, { "Name": "Jack", "Rate": 0.55 }, { "Name": "Mcd", "Rate": 0.01, }], }, { "IsDefault": false, "re": { "Name": "Depo" }, "Valid": "Oct8, 2013", "Clg": [{ "Name": "james", "Rate": 0.05 }, { "Name": "Jack", "Rate": 0.55 }, { "Name": "Mcd", "Rate": 0.01, }], }, { "IsDefault": false, "re": { "Name": "Depo" }, "Valid": "Oct8, 2013", "Clg": [{ "Name": "james", "Rate": 0.05 }, { "Name": "Jack", "Rate": 0.55 }, { "Name": "Mcd", "Rate": 0.01, }], }] } I am passing the json responses on both loadFromJson1 and loadFromJson2 function as "input" as parameter as below. var tablesResult = loadFromJson1(resultstest.r[0].Clg); loadFromJson1 = function (input) { if (_.isArray(input)) { alert("loadFromJson1: Inside array function"); var collection = new CompeCollection(); _.each(input, function (modelData) { collection.add(loadFromJson1(modelData)); }); return collection; } return new CompeModel({ compeRates: loadFromJson2(input), compName: input.Name }); }; loadFromJson2 = function (input) // here is the problem, the 'input' is not an array object so it is not going to IF condition of the isArray method. { if (_.isArray(input)) { alert("loadFromJson2: Inside array function"); //alert is not coming here though it is an array var rcollect = new rateCollection(); _.each(input, function (modelData) { rcollect.add(modelData); }); return rcollect; } }; The above code i am passing json responses for both loadFromJson1 and loadFromJson2 function as "input". isArray is getting true on only loadFromJson1 function and giving alert inside the if condition but not coming in loadFromJson2 function though i am passing the same parameter. can anyone tell me why loadFromJson2 function is not getting the alert inside if condition though i pass array object?

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  • What is the best practice in C# to propagate an exception thrown in a finally block without loosing an exception from a catch block?

    - by Sergey Smolnikov
    When an exception is possible to be thrown in a finally block how to propagate both exceptions - from catch and from finally? As a possible solution - using an AggregateException: internal class MyClass { public void Do() { Exception exception = null; try { //example of an error occured in main logic throw new InvalidOperationException(); } catch (Exception e) { exception = e; throw; } finally { try { //example of an error occured in finally throw new AccessViolationException(); } catch (Exception e) { if (exception != null) throw new AggregateException(exception, e); throw; } } } }

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  • javascript will not work onload

    - by user2711818
    The javascript on the page needs to work onpage load. So I tried adding the document ready function into the code. It doesn't seem to work. http://janeucreative.com/daddychallenge/bag.html <script>$(document).ready(function() { function addItem(item) { var itemInCart = item.cloneNode(true); itemInCart.onclick = function() { removeItem(this); }; var cart = document.getElementById("cart"); cart.appendChild(itemInCart); } function removeItem(item) { var itemInItems = item.cloneNode(true); itemInItems.onclick = function() { addItem(this); }; var cart = document.getElementById("cart"); cart.removeChild(item); } init(); });</script> Any advice would be much appreciated! I'm very new to javascript and just trying to learn it a step at a time.

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  • KnockoutJS - creating object doesn't work

    - by Kiwanax
    I'm doing a navigation list with menus and submenus. I have the following structure: function Menu(navigation) { this.NavigationUrl = ko.observable(navigation.NavigationUrl); this.NavigationTitle = ko.observable(navigation.NavigationTitle); this.NavigationDescription = ko.observable(navigation.NavigationDescription); var mappedChildren = ko.utils.arrayMap(navigation.Children, function (child) { return new Menu(child); }); this.Children = ko.observableArray(mappedChildren); } function DashboardViewModel() { var self = this; self.LoggedUser = ko.observable(""); self.Navigations = ko.observableArray([]); $.get('/Home/DashboardDependencies', {}, function (result) { self.LoggedUser(result.LoggedUser); var mappedNavigations = ko.utils.arrayMap(result.Navigations, function (item) { var menu = new Menu(item); // When I alert item, the result appears properly: // { "NavigationTitle": "blah", "NavigationDescription": "bleh" [...] } alert(JSON.stringify(item)); // But when I alert the new menu object, the result doesn't appear: // Just: "{}" alert(JSON.stringify(menu)); return menu; }); self.Navigations = mappedNavigations; }); } ko.applyBindings(new DashboardViewModel()); So, check it out. When I try to alert the item variable, the result appears properly. When I try to alert the new Menu object, the result just show {}. Why this' happening? Thank you all for the help!

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  • python fdb save huge data from database to file

    - by peter
    I have this script SELECT = """ select coalesce (p.ID,'') as id, coalesce (p.name,'') as name, from TABLE as p """ self.cur.execute(SELECT) for row in self.cur.itermap(): xml +=" <item>\n" xml +=" <id>" + id + "</id>\n" xml +=" <name>" + name + "</name>\n" xml +=" </item>\n\n" #save xml to file here f = open... and I need to save data from huge database to file. There are 10 000s (up to 40000) of items in my database and it takes very long time when script runs (1 hour and more) until finish. How can I take data I need from database and save it to file "at once"? (as quick as possible? I don't need xml output because I can process data from output on my server later. I just need to do it as quickly as possible. Any idea?) Many thanks!

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  • Is there a efficient way to do multiple test cases in c?

    - by Ahmed Abdelaal
    I use MS Visual Studio and I am new to C++, so I am just wondering if there is an faster more efficient way to do multiple test cases instead of keep clicking CTRL+F5 and re-opening the console many times. Like for example if I have this code #include <iostream> using namespace std; void main () { int x; cout<<"Enter a number"<<endl; cin>>x; cout<<x*2<<endl; } Is there a way I could try different values of x at once and getting the results together? Thanks

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  • Specifying path in a preference file in Unison

    - by Curious2learn
    I am using Unison to sync a folder on my local computer with one on a server. I am using a unison preference file for this. If I specify the path of the local folder using Method 1 (see below) things work well. But Method 2 does not work. I would like to use something like Method 2 because I want to use the same preference file (synced using Dropbox) on two different computers. But the usernames are different on these two computers and I cannot change the usernames. Any ideas how this can be achieved? Thank you. METHOD 1 (works) root = /Users/username1/Dropbox/path_to_folder/folder METHOD 2a (Does not work) root = ~/Dropbox/path_to_folder/folder METHOD 2b (Does not work) root = $HOME/Dropbox/path_to_folder/folder

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  • How to send a list of object from my MainPage.xaml to another page

    - by LivingThing
    When navigating to another page how can i make my list of object available to another page. for example in my mainpage.xaml var data2 = from query in document.Descendants("weather") select new Forecast { date = (string)query.Element("date"), tempMaxC = (string)query.Element("tempMaxC"), tempMinC = (string)query.Element("tempMinC"), weatherIconUrl = (string)query.Element("weatherIconUrl"), }; forecasts = data2.ToList<Forecast>(); .... NavigationService.Navigate(new Uri("/WeatherInfoPage.xaml", UriKind.Relative)); and then in my other class, i want to make it available so that i can use it like this private void AddPageItem(List<Forecast> forecasts) { .. }

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  • SQLAlchemy sessions - DetachedInstanceError?

    - by benjaminhkaiser
    I have a function that attempts to take a list of usernames, look each one up in a user table, and then add them to a membership table. If even one username is invalid, I want the entire list to be rolled back, including any users that have already been processed. I thought that using sessions was the best way to do this but I'm running into a DetachedInstanceError: DetachedInstanceError: Instance <Organization at 0x7fc35cb5df90> is not bound to a Session; attribute refresh operation cannot proceed Full stack trace is here. The error seems to trigger when I attempt to access the user (model) object that is returned by the query. From my reading I understand that it has something to do with there being multiple sessions, but none of the suggestions I saw on other threads worked for me. Code is below: def add_members_in_bulk(organization_eid, users): """Add users to an organization in bulk - helper function for add_member()""" """Returns "success" on success and id of first failed student on failure""" session = query_session.get_session() session.begin_nested() users = users.split('\n') for u in users: try: user = user_lookup.by_student_id(u) except ObjectNotFoundError: session.rollback() return u if user: membership.add_user_to_organization( user.entity_id, organization_eid, '', [] ) session.flush() session.commit() return 'success' here's the membership.add_user_to_organization: def add_user_to_organization(user_eid, organization_eid, title, tag_ids): """Add a User to an Organization with the given title""" user = user_lookup.by_eid(user_eid) organization = organization_lookup.by_eid(organization_eid) new_membership = OrganizationMembership( organization_eid=organization.entity_id, user_eid=user.entity_id, title=title) new_membership.tags = [get_tag_by_id(tag_id) for tag_id in tag_ids] crud.add(new_membership) and here is the lookup by ID query: def by_student_id(student_id, include_disabled=False): """Get User by RIN""" try: return get_query_set(include_disabled).filter(User.student_id == student_id).one() except NoResultFound: raise ObjectNotFoundError("User with RIN %s does not exist." % student_id)

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  • share image with url from database

    - by LauroSkr
    In my PHP web site will have a text converted to jpeg file,so it is a image. I want that i give users option to share the image. every image will have unique url so they can share image on facebook,twitter , do i need to put images with their url in mysql database or you do it in cloud? user will write text and then script will convert it to image and show it as image. then i want to provide user that he/she can share their created image. It would be great if you could provide me with a link or tutorial for my problem. Dont be hard on beginners,you were all in the same boat.. Thanks, LauroSkr

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  • jquery accessing dynamic class selectors

    - by dinotom
    Given the following html rendering; <fieldset id="fld_Rye"> <legend>7 Main St.</legend> <div> <table> <tr> <th class="wideCol"><b><i>Service Description</i></b></th> <th class="wideCol"><b><i>Service Name</i></b></th> <th class="normalPlusWidth"><b><i>Contact Name</i></b></th> </tr> <ItemTemplate> <tr class=""> <td class="servDesc">&nbsp;<b>Plumbing Services</b></td> <td class="servName">&nbsp;<b>Flynnsters's Plumbing</b></td> <td class="servContact">&nbsp;<b>Jim Flynnster</b></td> </tr> </ItemTemplate> I am trying to access all the td's with a class of servDesc, get their width into an array and get the max width from that array to reset the css width of that class using jquery on page load. I cant seem to get the right selector for those tags, and I've tried at least 50 variations. My latest try; var maxTdWidth; var servDescCols = []; $("#fld_Rye td#servDesc").each(function () { alert("found one"); servDescCols.push(this.width()); }); maxTdWidth = Math.max.apply(Math, servDescCols);

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  • How to navigate to another html page?

    - by newbie
    In my application there's a usual login page sending username and password to the server script, where it needs to be authenticated, and in case of an authentic user, the server should redirect to a page student.html. This is my code var ports = 3000; var portt = 3001; var express = require('express'); var student = require('express')(); var teacher = require('express')(); var server_s = require('http').createServer(student); var server_t = require('http').createServer(teacher); var ios = require('socket.io').listen(server_s); var iot = require('socket.io').listen(server_t); var path = require('path'); server_s.listen(ports); server_t.listen(portt); student.use(express.static(path.join(__dirname, 'public'))); student.get('/', function(req,res){ res.sendfile(__dirname + '/login.html'); }); teacher.use(express.static(path.join(__dirname, 'public'))); teacher.get('/', function(req,res){ res.sendfile(__dirname + '/mytry.html'); }); ios.sockets.on('connection', function(socket){ var username, password; socket.on('check',function(data){ username = data[0]; password = data[1]; //************* Database connection and query ************* var mysql = require('mysql'); var connection = mysql.createConnection({ host : 'localhost', user : 'user', password: '*******', database: 'my_db' }); connection.connect(); var qstring = 'SELECT s_id FROM login_student WHERE username='+username+'AND password='+password; connection.query(qstring, function(err, rows, fields) { if (err) { console.log('ERROR: ' + err); socket.emit('login_failure','DB error'); return; } console.log('The solution is: ', rows[0].solution); if (rows>0) //***** Here i want redirection to another page ****** else socket.emit('login_failure','Invalid Username or password'); }); connection.end(); }); }); iot.sockets.on('connection', function(socket){ ; }); }); Can anyone suggest what should I do?

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  • Django: Create custom template tag -> ImportError

    - by Alexander Scholz
    I'm sorry to ask this again, but I tried several solutions from stack overflow and some tutorials and I couldn't create a custom template tag yet. All I get is ImportError: No module named test_tag when I try to start the server via python manage.py runserver. I created a very basic template tag (found here: django templatetag?) like so: My folder structure: demo manage.py test __init__.py settings.py urls.py ... templatetags __init__.py test_tag.py test_tag.py: from django import template register = template.Library() @register.simple_tag def test_tag(input): if "foo" == input: return "foo" if "bar" == input: return "bar" if "baz" == input: return "baz" return "" index.html: {% load test_tag %} <html> <head> ... </head> <body> {% cms_toolbar %} {% foobarbaz "bar" %} {% foobarbaz "elephant" %} {% foobarbaz "foo" %} </body> </html> and my settings.py: INSTALLED_APPS = ( ... 'test_tag', ... ) Please let me know if you need further information from my settings.py and what I did wrong so I can't even start my server. (If I delete 'test_tag' from installed apps I can start the server but I get the error that test_tag is not known, of course). Thanks

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  • Buttons, hover, text and transitions on pure css3

    - by Mascote Ricardo
    I bought a responsive html5 template to create a website for my band. But I miss a page of tour dates, and would create a unique content, simple and quick to load on any device. I have the idea ready, something like buttons (months) to change on hover and when clicked, shows the dates and cities, all with transitions and fadein / fadeout. (pure css3) to better explain and make me understand, follows an image I created in photoshop. http://img51.imageshack.us/img51/1542/l17u.jpg can someone give me a help, idea or tag to search the web, I thank you too!

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  • Incorrect syntax inserting data into table

    - by SelectDistinct
    I am having some trouble with my update() method. The idea is that the user Provides a recipe name, ingredients, instructions and then selects an image using Filestream. Once the user clicks 'Add Recipe' this will call the update method, however as things stand I am getting an error which is mentioning the contents of the text box: Here is the update() method code: private void updatedata() { // filesteam object to read the image // full length of image to a byte array try { // try to see if the image has a valid path if (imagename != "") { FileStream fs; fs = new FileStream(@imagename, FileMode.Open, FileAccess.Read); // a byte array to read the image byte[] picbyte = new byte[fs.Length]; fs.Read(picbyte, 0, System.Convert.ToInt32(fs.Length)); fs.Close(); //open the database using odp.net and insert the lines string connstr = @"Server=mypcname\SQLEXPRESS;Database=RecipeOrganiser;Trusted_Connection=True"; SqlConnection conn = new SqlConnection(connstr); conn.Open(); string query; query = "insert into Recipes(RecipeName,RecipeImage,RecipeIngredients,RecipeInstructions) values (" + textBox1.Text + "," + " @pic" + "," + textBox2.Text + "," + textBox3.Text + ")"; SqlParameter picparameter = new SqlParameter(); picparameter.SqlDbType = SqlDbType.Image; picparameter.ParameterName = "pic"; picparameter.Value = picbyte; SqlCommand cmd = new SqlCommand(query, conn); cmd.Parameters.Add(picparameter); cmd.ExecuteNonQuery(); MessageBox.Show("Image successfully saved"); cmd.Dispose(); conn.Close(); conn.Dispose(); Connection(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } Can anyone see where I have gone wrong with the insert into Recipes query or suggest an alternative approach to this part of the code?

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  • How to Append a div with javascript inside

    - by Damathryx
    I have this <div id="inprog_table"> </div> I tried this to insert var div = document.getElementById('inprog_table'); div.innerHTML = div.innerHTML+ "<div class='row'> <div class='col-xs-7'> "+ $(".row.active .col-xs-7 p:first-child").text()+" </div> <div class='col-xs-2'> "+ $(".row.active .col-xs-7 p:last-child").text()+" </div> <div class='col-xs-2'> 1 </div>" inside inprog_table div. I know it's really wrong, but I don't know how to append all of this.

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  • How can i merge arrays like a gearwheel

    - by JuKe
    i have 3 arrays like this $a = array( 0 => 'a1', 1 => 'a2', 2 => 'a3' ); $b = array( 0 => 'b1', 1 => 'b2', 2 => 'b3' ); $c = array( 0 => 'c1', 1 => 'c2', 2 => 'c3' ); and i like to have somethink like this: $r = array( 0 => 'a1', 1 => 'b1', 2 => 'c1', 3 => 'a2', 4 => 'b2', 5 => 'c2', 6 => 'a3', .... ... ); how can i do this, with the opinion of more than 3 arrays EDIT: i have tried this: $a = array( 0 => 'a1', 1 => 'a2', 2 => 'a3', 3 => 'a4' ); $b = array( 0 => 'b1', 1 => 'b2', 2 => 'b3' ); $c = array( 0 => 'c1', 1 => 'c2', 2 => 'c3', 3 => 'c3', 4 => 'c3', 5 => 'c3' ); $l['a'] = count($a); $l['b'] = count($b); $l['c'] = count($c); arsort($l); $largest = key($l); $result = array(); foreach ($$largest as $key => $value) { $result[] = $a[$key]; if(array_key_exists($key, $b)) $result[] = $b[$key]; if(array_key_exists($key, $c)) $result[] = $c[$key]; } print_r($result); this work.. but the code isn't nice. so anyone has a better solution?

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  • Java homework help, Error <identifier> expected

    - by user2900126
    Help with java homework this is my assignment that I have, this assignment code I've tried. But when I try to compile it I keep getting errors which I cant seem to find soloutions too: Error says <identifier> expected for Line 67 public static void () Assignment brief To write a simple java classMobile that models a mobile phone. Details the information stored about each mobile phone will include • Its type e.g. “Sony ericsson x90” or “Samsung Galaxy S”; • Its screen size in inches; You may assume that this a whole number from the scale 3 to 5 inclusive. • Its memory card capacity in gigabytes You may assume that this a whole number • The name of its present service provider You may assume this is a single line of text. • The type of contract with service provider You may assume this is a single line of text. • Its camera resolution in megapixels; You should not assume that this a whole number; • The percentage of charge left on the phone e.g. a fully charged phone will have a charge of 100. You may assume that this a whole number • Whether the phone has GPS or not. Your class will have fields corresponding to these attributes . Start by opening BlueJ, creating a new project called myMobile which has a classMobile and set up the fields that you need, Next you will need to write a Constructor for the class. Assume that each phone is manufactured by creating an object and specifying its type, its screen size, its memory card capacity, its camera resolution and whether it has GPS or not. Therefore you will need a constructor that allows you to pass arguments to initialise these five attributes. Other fields should be set to appropriate default values. You may assume that a new phone comes fully charged. When the phone is sold to its owner, you will need to set the service provider and type of contract with that provider so you will need mutator methods • setProvider () - - to set service provider. • setContractType - - to set the type of contract These methods will be used when the phones provider is changed. You should also write a mutator method ChargeUp () which simulates fully charging the phone. To obtain information about your mobile object you should write • accessor methods corresponding to four of its fields: • getType () – which returns the type of mobile; • getProvider () – which returns the present service provider; • getContractType () – which returns its type of contract; • getCharge () – which returns its remaining charge. An accessor method to printDetails () to print, to the terminal window, a report about the phone e.g. This mobile phone is a sony Erricsson X90 with Service provider BigAl and type of contract PAYG. At present it has 30% of its battery charge remaining. Check that the new method works correctly by for example, • creating a Mobile object and setting its fields; • calling printDetails () and t=checking the report corresponds to the details you have just given the mobile; • changing the service provider and contract type by calling setprovider () and setContractType (); • calling printDetails () and checking the report now prints out the new details. Challenging excercises • write a mutator methodswitchedOnFor () =which simulates using the phone for a specified period. You may assume the phone loses 1% of its charge for each hour that it is switched on . • write an accessor method checkcharge () whichg checks the phone remaing charge. If this charge has a value less than 25%, then this method returns a string containg the message Be aware that you will soon need to re-charge your phone, otherwise it returns a string your phone charge is sufficient. • Write a method changeProvider () which simulates changing the provider (and presumably also the type of service contract). Finally you may add up to four additional fields, with appropriate methods, that might be required in a more detailed model. above is my assignment that I have, this assignment code I've tried. But when I try to oompile it I keep getting errors which I cant seem to find soloutions too: Error says <identifier> expected for Line 67 public static void () /** * to write a simple java class Mobile that models a mobile phone. * * @author (Lewis Burte-Clarke) * @version (14/10/13) */ public class Mobile { // type of phone private String phonetype; // size of screen in inches private int screensize; // menory card capacity private int memorycardcapacity; // name of present service provider private String serviceprovider; // type of contract with service provider private int typeofcontract; // camera resolution in megapixels private int cameraresolution; // the percentage of charge left on the phone private int checkcharge; // wether the phone has GPS or not private String GPS; // instance variables - replace the example below with your own private int x; // The constructor method public Mobile(String mobilephonetype, int mobilescreensize, int mobilememorycardcapacity,int mobilecameraresolution,String mobileGPS, String newserviceprovider) { this.phonetype = mobilephonetype; this.screensize = mobilescreensize; this.memorycardcapacity = mobilememorycardcapacity; this.cameraresolution = mobilecameraresolution; this.GPS = mobileGPS; // you do not use this ones during instantiation,you can remove them if you do not need or assign them some default values //this.serviceprovider = newserviceprovider; //this.typeofcontract = 12; //this.checkcharge = checkcharge; Mobile samsungPhone = new Mobile("Samsung", "1024", "2", "verizon", "8", "GPS"); 1024 = screensize; 2 = memorycardcapacity; 8 = resolution; GPS = gps; "verizon"=serviceprovider; //typeofcontract = 12; //checkcharge = checkcharge; } // A method to display the state of the object to the screen public void displayMobileDetails() { System.out.println("phonetype: " + phonetype); System.out.println("screensize: " + screensize); System.out.println("memorycardcapacity: " + memorycardcapacity); System.out.println("cameraresolution: " + cameraresolution); System.out.println("GPS: " + GPS); System.out.println("serviceprovider: " + serviceprovider); System.out.println("typeofcontract: " + typeofcontract); } /** * The mymobile class implements an application that * simply displays "new Mobile!" to the standard output. */ public class mymobile { public static void main(String[] args) { System.out.println("new Mobile!"); //Display the string. } } public static void buildPhones(){ Mobile Samsung = new Mobile("Samsung", "3.0", "4gb", "8mega pixels", "GPS"); Mobile Blackberry = new Mobile("Blackberry", "3.0", "4gb", "8mega pixels", "GPS"); Samsung.displayMobileDetails(); Blackberry.displayMobileDetails(); } public static void main(String[] args) { buildPhones(); } } any answers.replies and help would be greatly appreciated as I really lost!

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  • Variable loss in redirected bash while loop

    - by James Hadley
    I have the following code for ip in $(ifconfig | awk -F ":" '/inet addr/{split($2,a," ");print a[1]}') do bytesin=0; bytesout=0; while read line do if [[ $(echo ${line} | awk '{print $1}') == ${ip} ]] then increment=$(echo ${line} | awk '{print $4}') bytesout=$((${bytesout} + ${increment})) else increment=$(echo ${line} | awk '{print $4}') bytesin=$((${bytesin} + ${increment})) fi done < <(pmacct -s | grep ${ip}) echo "${ip} ${bytesin} ${bytesout}" >> /tmp/bwacct.txt done Which I would like to print the incremented values to bwacct.txt, but instead the file is full of zeroes: 91.227.223.66 0 0 91.227.221.126 0 0 127.0.0.1 0 0 My understanding of Bash is that a redirected for loop should preserve variables. What am I doing wrong?

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  • Hide form if javascript disabled

    - by Kero
    I need to check on disabling JavaScript if the user disabled JavaScript from browser or firewall or any other place he will never show the form. I have lots of search and solutions, but unfortunately didn't got the right one. - Using style with no-script tag: This one could be broke with removing style... <noscript> <style type="text/css"> .HideClass { display:none; } </style> </noscript> The past code will work just fine but there is lots of problems in no-script tag as here Beside that i don't want to redirect user with no-script tag too...Beside that i can quickly stop loading the page to broke this meta or disable Meta tag from IE: <meta http-equiv="refresh" content="0; URL=Frm_JavaScriptDisable.aspx" /> Another way to redirect user with JavaScript but this will work let's say for 99% of users and this one isn't lovely way and will slow down the website... window.location="http://www.location.com/page.aspx"; Is there is any other ideas or suggestions to secure working with JavaScript...and prevent user from entering the website or see my form except when JavaScript enabled...

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  • Esper generating episodes

    - by Jasonojh
    I would like to use Esper to generate episodes of events. I am trying to detect the changes in robot movement during each time period and was wondering what would be the best way of implementation. The rules for generation of episodes from the events would be If the new event time(eg. 7sec, robot A) of a robot is more than 3 sec than the latest event(eg. 3 sec, robot A) of the same robot, the new event belongs to a new episode. Each episode should represent only one robot (eg. 2sec, robotA and 3sec, robotB should output 2 episodes) Input data: Event Time Robot Position 1 1 A 0 2 2 A 1 3 6 A 2 Output data should be: Array[0]={Event 1,Event 2} Array[1]={Event 3} //more than 3 sec Input data: Event Time Robot Position 1 1 A 0 2 2 A 1 3 4 B 0 4 6 A 2 Output data should be: Array[0]={Event 1,Event 2} Array[1]={Event 3} //different robot Array[2]={Event 4} Please help provide suggestions. I have tried using mulitple listeners, one for each robot, to create episodes and it works but I am trying to use a single EPL statement to do it. I have tried win:time_accum(3sec) group by robot but the second example output: Array[0]={Event 1,Event 2, Event 4} Array[1]={Event 3} as the time window is shifted everytime an event comes in, the system still thinks that event 4 is less than 3 sec due to event 3. how do I create a unique time window for each robot? Thank you for your suggestions and any help is greatly appreciated.

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  • Send array of string using tcp

    - by user2798455
    I'm not sure if this is possible but here it goes. Usually I send strings like this... Connection.IOHandler.WriteLn('alpha'); Connection.IOHandler.WriteLn('bravo'); Connection.IOHandler.WriteLn('charley'); //and so on.. But what if I want to send it in just one go, just send it all at once. Maybe I could put it on an array of strings then send the array. someStr : array[1..3] of string = ('alpha','bravo','charley');//this could be more ... StrListMem := TMemoryStream.Create; try StrListMem.WriteBuffer(someStr[0], Length(someStr)); StrListMem.Position:=0; Connection.IOHandler.Write(StrListMem, 0, True); finally StrListMem.Free; end; I just have no idea how to this right, maybe somebody can give an example? and how the receiver(client) will read it.

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  • How to create a jEdit "New View" that not synchronize with the old window

    - by user2898598
    Hi I just noticed that if you creating a new view on jEdit, when you editing the new one, it affected the text on the original window's text as well, how could I create a New view that allow the user to duplicate data for the current shown view only and not effecting the old ones? I try to find solutions on the source code, then I find seems there are setting that related to this: http://www.jedit.org/users-guide/buffersets.html but I didn't find the selection mentioned on my setting.

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  • Gamepad Control for Processing + Android to Control Arduino Robot

    - by Iker
    I would like to create a Multitouch Gamepad control for Processing and use it to control a remote Arduino Robot. I would like to make the GUI on Processing and compile it for Android. Here is the GUI Gamepad for Processing I have created so far: float easing = 0.09; // start position int posX = 50; int posY = 200; // target position int targetX = 50; int targetY = 200; boolean dragging = false; void setup() { size(500,250); smooth(); } void draw() { background(255); if (!dragging) { // calculate the difference in position, apply easing and add to vx/vy float vx = (targetX - (posX)) * easing; float vy = (targetY - (posY)) * easing; // Add the velocity to the current position: make it move! posX += vx; posY += vy; } if(mousePressed) { dragging = true; posX = mouseX; posY = mouseY; } else { dragging = false; } DrawGamepad(); DrawButtons(); } void DrawGamepad() { //fill(0,155,155); //rect(0, 150, 100, 100, 15); ellipseMode(RADIUS); // Set ellipseMode to RADIUS fill(0,155,155); // Set fill to blue ellipse(50, 200, 50, 50); // Draw white ellipse using RADIUS mode ellipseMode(CENTER); // Set ellipseMode to CENTER fill(255); // Set fill to white// ellipse(posX, posY, 35, 35); // Draw gray ellipse using CENTER mode } void DrawButtons() { fill(0,155,155); // Set fill to blue ellipse(425, 225, 35, 35); ellipse(475, 225, 35, 35); fill(255,0,0); // Set fill to blue ellipse(425, 175, 35, 35); ellipse(475, 175, 35, 35); } I have realized that probably that code will not support Multitouch events on Android so I came up with another code found on this link Can Processing handle multi-touch? So the aim of this project is to create de multitouch gamepad to use to control my Arduino Robot. The gamepad should detect which key was pressed as well as the direction of the Joystick. Any help appreciated.

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