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  • Generating the permutations from a number of Characters

    - by adam08
    I'm working on a predictive text solution and have all the words being retrieved from a Trie based on input for a certain string of characters, i.e. "at" will give all words formed with "at" as a prefix. The problem that I have now, is that we are also supposed to return all other possibilities from pressing these 2 buttons, Button 2 and button 8 on the mobile phone, which would also give words formed with, "au, av, bt, bu, bv, ct, cu, cv" (most of which won't have any actual words. Can anyone suggest a solution and how I would go about doing this for calculating the different permutations? (at the moment, I'm prompting the user to enter the prefix (not using a GUI right now)

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  • How do you search through a map?

    - by Jack Null
    I have a map: Map<String, String> ht = new HashMap(); and I would like to know how to search through it and find anything matching a particular string. And if it is a match store it into an arraylist. The map contains strings like this: 1,2,3,4,5,5,5 and the matching string would be 5. So for I have this: String match = "5"; ArrayList<String> result = new ArrayList<String>(); Enumeration num= ht.keys(); while (num.hasMoreElements()) { String number = (String) num.nextElement(); if(number.equals(match)) { result.add(number); } }

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  • Visual Studio IDE - how do you quickly find the implementation(s) of an interface's method?

    - by Jess
    Is there a quick way to find all of the implementations of, not references to, an interface's method/property/etc? Here's some sample code: public class SomeClass : IBaseClass { public Int32 GetInt() { return 1; } } public interface IBaseClass { public Int32 GetInt(); } public class SomeOtherClass { ISomeClass _someClass; private TestMethod() { _someClass = new SomeClass(); _someClass.GetInt(); } } I want to quickly get to SomeClass.GetInt() while reviewing SomeOtherClass.TestMethod(). If I right click on _someClass.GetInt() and click 'Go To Definition', it takes me to the interface. If I click 'Find All References', I could potentially see a list of all uses ... not just the classes that implement the GetInt() method. Is there a faster way to find this? Any tips from other developers? We are using D.I. for most of our dependencies, which means that tracing through deeply nested code takes forever.

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  • Strange "cache" effect between client and server

    - by mark
    I use a Socket-based connection between Client and server with ObjectOutputStream. The objects serialized and exchanged have this structure: public class RichiestaSalvataggioArticolo implements Serializable { private ArticoloDati articolo; public RichiestaSalvataggioArticolo(ArticoloDati articolo) { this.articolo = articolo; } @Override public void ricevi(GestoreRichieste gestore) throws Exception { gestore.interpreta(this); } public ArticoloDati getArticolo() { return articolo; } } the issue is that when I try to exchange messages between C/S with incapsulated content very similar (ArticoloDati whom differ only in 2 fields out of 10), the Client sends an ArticoloDati, but the Server receives the previous one. Does the ObjectOutputStream implement some kind of cache or memory between the calls, that fails to recognize that my 2 objects are different because they are very similar?

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  • Using jQuery, how do I way attach a string array as a http parameter to a http request?

    - by predhme
    I have a spring controller with a request mapping as follows @RequestMapping("/downloadSelected") public void downloadSelected(@RequestParam String[] ids) { // retrieve the file and write it to the http response outputstream } I have an html table of objects which for every row has a checkbox with the id of the object as the value. When they submit, I have a jQuery callback to serialize all ids. I want to stick those ids into an http request parameter called, "ids" so that I can grab them easily. I figured I could do the following var ids = $("#downloadall").serializeArray(); Then I would need to take each of the ids and add them to a request param called ids. But is there a "standard" way to do this? Like using jQuery?

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  • Which software is best for browser compatibility testing?

    - by Camran
    Which software is recommended? I know of Adobe Browser Lab only, and it seems pretty new... Is there any better SW out there? Thanks PS: I have a classifieds website (PHP, MySql, Solr, js) developed on local computer using virtual server etc... Now I need to test it on different browsers. It is developed only with Firefox, so it works fine in FF.

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  • How to build SVN/Git like Diff in WebApp?

    - by 01
    I have XMLs(or Objects) that represents data at some point in a business process. I would like to be able to see what has changed between step1 and step5(two versions of the same XML or Object). Id like to implement this like diff function in version control system. how to do it in web app? P.S. I dont want to just store those files in VCS and than make it do the diff. However if I could somehow emulate VCS without having one that would be cool. P.S. I know there are some JS frameworks that offer diff functionality, but the XML could have 10MB, so I think it should be dont at server side.

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  • Camel | Need for Scheduling console

    - by user1692063
    I am using camel 2.9.0 in my project. We have a number of routes divided into different camel contexts. Each camel context is bundled separately and deployed in Apache Karaf. Now the problem is divied into 2 parts: 1.) Each route is a scheduled route. Although using Quartz component, we are able to define a cron expressio in each route, we want a console where in we can trigger,stop any route and also put a cron expression to any route.(Scheduling a route through a web console is our main objective). 2.) Also we tried to configure the cron expression for each route through quartz.property. But if someone wants to change the cron expression at runtime in Apache Karaf, then we have to stop the bundle deployed and start in again. What can be done to change the value of cron expression at runtime. Any replies and help would be appreciable. Piyush

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  • How to create GUI as inner class with WindowBuilder

    - by Tim Kemp
    I would like to use WindowBuilder in Eclipse to construct Swing GUIs. The JPanels I need to build will be inner classes in a non-GUI wrapper, like so: public class MyWrapper extends MyBaseClass { ... class MyPanel extends JPanel { ... } } So my question is this: can I construct MyPanel using WindowBuilder? If so, how should I set it up? If anyone is interested, the wrapper is an abstract base class which the plug-ins I am developing for my app must extend; deployment concerns mean that it's not really practical to put the GUIs in a separate JAR either so I pretty much have to do it this way. My current workflow, which is awful, is to build the GUI in NetBeans and paste the entire generated class into Eclipse where I connect it up to the methods in my wrapper. I am very hopeful that WindowBuilder will let me work more reliably and efficiently if I can trick it into generating code in MyPanel, not MyWrapper. Thanks

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  • How to send HTML as GET-Request parameter?

    - by Mork0075
    I would like to send a html string with a GET request like this with Apaches HttpClient: http://sample.com/?html=<html><head>... This doesnt work at the moment, i think its an encoding problem. Do you have any ideas how to do that? method.setQueryString(new NameValuePair[] {new NameValuePair("report", "<html>....")}); client.executeMethod(method) This fails with org.apache.commons.httpclient.NoHttpResponseException: The server localhost failed to respond. If i replace "<html>" by "test.." it works fine. EDIT It seams to be a problem of URL length after encoding, the server doesnt except such long URls. Sending it as POST solves the problem.

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  • create an hotspot and set an image without background (like earth icon) to my panel

    - by sirvan
    Hi I try to create an hotspot by Extends of canvas and I try to add it on a panel witch painted by images , so I must to draw an icon (image) instead of clear rectangle of the screen, to do that I override the paint method to draw the icon I want to use, so far there is no problem, the hotspot work true and the icon painted in true size I want(32,24 pixel) I try to add this hotspot after painting image on the my panel in mypanel.paint(g) that override too. The problem , I use an car icon that have no background !!(I hope you can understand me) just car icon must be show on the panel that painted with my images; But an unwanted rectangle created around the icon and made bad view, How I can paint may icon on panel without that background? Please help me.

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  • Google App Engine/Simple HTML, how to write input boxes with google autocomplete

    - by Calm Storm
    I am writing a GAE application and I would like to have an input box with google auto-suggest. Specifically, when a user types "Shawshank" I would like to see google's suggestions in my drop down. Can someone tell me what are the different ways of doing this? I understand I may have to use some javascript libraries so any code samples etc will help immensely. (Pure javascript/jquery kinda solutions will be more preferable)

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  • problem in deleting record

    - by akshay
    I have a entity manager em1 .em1 starts a transcation tx on db1 table1.Now inside tx i call a API getdata().This API creastes a new entitymanger em2 and return 1 record.Now if entity manger em1 tries to delete the record returned by em1 , it hangs.Code times out.Is the record locked by em1.How can ii solve this problem? create em1 //em1 start transcation tx1 tx1.start Object r = getData(); em1 tried to delete r //code hangs here tx1.commit Object getData(){ create em2 return data found using em2 }

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  • How can i pass an object to a new thread generated anonymously in a button listener

    - by WaterBoy
    I would like to pass an object (docket for printing) to a new thread which will print the docket. My code is: private final Button.OnClickListener cmdPrintOnClickListener = new Button.OnClickListener() { public void onClick(View v) { new Thread(new Runnable() { public void run() { enableTestButton(false); Looper.prepare(); doConnectionTest(); Looper.loop(); Looper.myLooper().quit(); } }).start(); } }; How do I pass the object to it? Also - I need to generate the object in the UI thread, just before starting the new thread so where could I put this method (e.g. getDocketObject()) in relation to my code below thanks, anton

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  • security issue on web application using firebug

    - by Suresh S
    Guys i have developed a web application in jsp . I have many javscript validation for text validation in the jsp page.while during the testing , i enabled firebug in firefox and cleared a function that validates and submits to a servlet.The web application allows to submit garbage value of the textfiedl . how to overcome this ? any solutions?

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  • JLabel wont change color twice

    - by Aly
    Hi, I have the following code: public class Test extends JFrame implements ActionListener{ private static final Color TRANSP_WHITE = new Color(new Float(1), new Float(1), new Float(1), new Float(0.5)); private static final Color TRANSP_RED = new Color(new Float(1), new Float(0), new Float(0), new Float(0.1)); private static final Color[] COLORS = new Color[]{ TRANSP_RED, TRANSP_WHITE}; private int index = 0; private JLabel label; private JButton button; public Test(){ super(); setLayout(new BoxLayout(getContentPane(), BoxLayout.Y_AXIS)); label = new JLabel("hello world"); label.setOpaque(true); label.setBackground(TRANSP_WHITE); getContentPane().add(label); button = new JButton("Click Me"); button.addActionListener(this); getContentPane().add(button); pack(); setVisible(true); } @Override public void actionPerformed(ActionEvent e) { if(e.getSource().equals(button)){ label.setBackground(COLORS[index % (COLORS.length - 1)]); } } public static void main(String[] args) { new Test(); } } When I run it I get the label with the TRANSP_WHITE background and then when I click the button this color changes to TRANSP_RED but when I click it again I see no change in color. Does anyone know why? Thanks

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  • Can you use Ant to Build/Modify XML files?

    - by user369701
    I am quite new to ant and have been looking at the tasks. I am trying to generate an xml file. Do I need to call an external process or does ant have some way to do this? It could be as simple as sending a string to a txt file and saving it as a .xml. Is it possible?

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  • set arraylist element as null

    - by Jessy
    The first index is set to null (empty), but it doesn't print the right output, why? //set the first index as null and the rest as "High" String a []= {null,"High","High","High","High","High"}; //add array to arraylist ArrayList<Object> choice = new ArrayList<Object>(Arrays.asList(a)); for(int i=0; i<choice.size(); i++){ if(i==0){ if(choice.get(0).equals(null)) System.out.println("I am empty"); //it doesn't print this output } }

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  • MySQL connection timeout

    - by NikolayGS
    I'm running program at apache tomcat server, that should be on permanently, but every morning(the client part isn't accessible at night) i receive error message (in apache tomcat console) that MySQL server is off. So is there any way to prevent this? Thanks in advance!

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