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  • how to go the middle of the singularly linked list in one iteration?

    - by u3050
    Recently I have been asked one question that in a singularly linked list how do we go to the middle of the list in one iteration. A --> B --> C --> D (even nodes) for this it should return address which points to B A --> B --> C (odd nodes) for this also it should return address which points to B There is one solution of taking two pointers one moves one time and other moves two times but it does not seem working here LinkedList p1,p2; while(p2.next != null) { p1 = p1.next; p2 = p2.next.next; } System.out.print("middle of the node" + p1.data); //This does not give accurate result in odd and even Please help if anyone has did this before.

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  • Querying my JPA provider (Hibernate) for a collection of <Id,Name> of an entity

    - by Ittai
    Hi, I have an entity which looks something like this: Id (PK) Name Other business properties and associations... I have the need for my DAL (JPA with hibernate as provider) to return a list of the entities which correlate to some constraints (or just return them all) but instead of returning the entities themselves I'd like to receive only the Id and the Name properties. I know this can be achieved with HQL/SQL (something like: select id,name from entity where...) but I don't want to go down that road. I was thinking of somehow defining the pair a compositioned part of the entity and thought that might help me but I'm not sure that's "legal" as the Id is the PK. The logic for this scenario is to have a textbox which asynchronously queries the web-service (and through it the DAL) for the relevant entities and once an entity is selected then it is loaded as a whole and shipped to the front-end. Would appreciate any feedback, Ittai

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  • Can Spring understand @Inject replacing Weld as a JSR-299 implementation?

    - by Thorbjørn Ravn Andersen
    I have noticed from several web pages that apparently Spring 3.0 supports @Inject from JSR-330. As we would really like to use JSR-299 syntax for dependency injection in our libraries for both web apps and stand-alone applications, and have alternatives to Weld, it would be nice if Spring could do this. Being a novice to Spring, I tried downloading the Spring Framework distribution and put all jars on the Eclipse build path. No Inject annotation so my existing test project using Weld did not compile. Can this be done with Spring? What do I need to do to get it running? (I am aware that Guice eventually will support this too. It is only in SVN for now, and if there is an official Spring release which can, that would be better.)

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  • How to represent a Many-To-Many relationship in XML or other simple file format?

    - by CSharperWithJava
    I have a list management appliaction that stores its data in a many-to-many relationship database. I.E. A note can be in any number of lists, and a list can have any number of notes. I also can export this data to and XML file and import it in another instance of my app for sharing lists between users. However, this is based on a legacy system where the list to note relationship was one-to-many (ideal for XML). Now a note that is in multiple lists is esentially split into two identical rows in the DB and all relation between them is lost. Question: How can I represent this many-to-many relationship in a simple, standard file format? (Preferably XML to maintain backwards compatibility)

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  • Private API and SMS content URI's on Android

    - by Shadow
    Without accessing private API's to get Content URI's, etc. for SMS, how are we expected to query this data? I am currently in the process of writing my own SMS app and I want to stay as compatible as possible. Without storing the information myself in my own database (such that I can store the text messages so that other programs can access the data when/if they delete my app) and without using private API's how the heck are we suppose to query SMS data?

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  • save input from text file to array

    - by Jessy
    How to save txt file content to different arrays? my txt file content is like this; 12 14 16 18 13 17 14 18 10 23 pic1 pic2 pic3 pic4 pic5 pic6 pic7 pic8 pic9 pic10 left right top left right right top top left right 100 200 300 400 500 600 700 800 900 1000 how can I save each line into different array? e.g. line 1 will be saved in an array1 line 2 will be saved in an array2 line 3 will be saved in an array3 line 4 will be saved in an array4 Thanks you

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  • J2SE Client Server App: Client calls RMI method. Server handles RMI method and returns, but Client

    - by Mike
    J2SE Client Server App: Client calls RMI message. Server handles RMI method and returns, but Client never receives it. Any ideas how this could happen? Our attempted solution is to set client read timeouts and come up with a framework for resending requests or otherwise handling those failures gracefully. But really, I'd like to know any root causes for how this might happen rather than addressing the symptoms.

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  • Why does the Maven goal "package" include the resources in the jar, but the goal "jar:jar" doesnt?

    - by Bernhard V
    Hi, when I package my project with the Maven goal "package", the resources are included as well. They are originally located in the directory "src/main/resources". Because I want to create an executable jar and add the classpath to the manifest, I'm using maven-jar-plugin. I've configured it as the following likes: <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.2</version> <configuration> <archive> <manifest> <addClasspath>true</addClasspath> <mainClass>at.sozvers.stp.zpv.ekvkumsetzer.Main</mainClass> </manifest> </archive> </configuration> </plugin> Why won't the jar file created with "jar:jar" include my resources as well. As far as I'm concerned it should use the same directories as the "package" goal (which are in my case inherited from the Maven Super POM).

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  • Updated data is not loaded in the same browser(using Ajax )

    - by Mouli
    Initilly load some datas into dropdown list. It contain company code and company related fields in Textbox. Using Ajax to load the company related Fields in onchange Function I edit the company related fields and update it. Its updated Successfully then i Click the back button and refresh the browser. I select the updated company form the dropdown list. It always list the old value insted of updated data. I want to show the updated fields into corresponding textbox. This part of coding is to load the companyname into dropdown list <% DBAccess dbAccess = Util.initDatabaseAccess(); ResultSet rs = null; ResultSet rsEdit = null; int updateSuccess = 0; String button = request.getParameter("saveAction"); rs = dbAccess.executeQuery("select companyname,Companycode,companyid from yosemitecompany where cmpstatus=1 order by companyname"); %> My Ajax function <script> function showCompanyDetails(str) { if (str=="") { document.getElementById("CompanyName").innerHTML=""; return; } if (window.XMLHttpRequest) { xmlhttp=new XMLHttpRequest(); } else { xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { var resValue=new Array(); resValue = xmlhttp.responseText.split("$"); document.getElementById("CompanyName").value=resValue[0]; document.getElementById("StreetName1").value=(resValue[1]!=null && !resValue[1].equalsIgnoreCase("null") && resValue[1].length>0?resValue[1]:""); document.getElementById("StreetName2").value=(resValue[2]!=null && !resValue[2].equalsIgnoreCase("null") && resValue[2].length>0?resValue[2]:""); document.getElementById("City").value=(resValue[3]!=null && !resValue[3].equalsIgnoreCase("null") && resValue[3].length>0?resValue[3]:""); document.getElementById("Zipcode").value=trim((resValue[5]!=null && !resValue[5].equalsIgnoreCase("null") && resValue[5].length>0?resValue[5]:"")); document.getElementById("officePhone").value=(resValue[6]!=null && !resValue[6].equalsIgnoreCase("null") && resValue[6].length>0?resValue[6]:""); document.getElementById("Fax1").value=(resValue[7]!=null && !resValue[7].equalsIgnoreCase("null") && resValue[7].length>0?resValue[7]:""); document.getElementById("email").value=(resValue[8]!=null && !resValue[8].equalsIgnoreCase("null") && resValue[8].length>0?resValue[8]:""); document.getElementById("WebSite").value=(resValue[9]!=null && !resValue[9].equalsIgnoreCase("null") && resValue[9].length>0?resValue[9]:""); document.getElementById("description").value=(resValue[10]!=null && !resValue[10].equalsIgnoreCase("null") && resValue[10].length>0?resValue[10]:""); document.getElementById("companycode").value=resValue[11]; document.getElementById("tempCompanyId").value=resValue[12]; document.getElementById("tempStateId").value=resValue[13]; stateID = resValue[13]; countryID = resValue[14]; processAjaxRequestPost('ajaxRequestPost','SingleListHandler','getCountryListDetails', document.getElementById("tempCompanyId").value); showTimezone(resValue[15]); document.getElementById("userName").value=resValue[16]; document.getElementById("passWord").value=resValue[17]; } } xmlhttp.open("GET","customerDetail.jsp?val="+str,true); xmlhttp.send(); } </script> My Update function <%if(updateSuccess <= 0){ if(button != null && button.equalsIgnoreCase("update")) { String companyCode = request.getParameter("companycode").trim(); String companyName = request.getParameter("CompanyName").trim(); String StreetName1 = request.getParameter("StreetName1").trim(); String StreetName2 = request.getParameter("StreetName2").trim(); String City = request.getParameter("City").trim(); String Zipcode = request.getParameter("Zipcode").trim(); String officePhone = request.getParameter("officePhone").trim(); String Fax1 = request.getParameter("Fax1").trim(); String email = request.getParameter("email").trim(); String WebSite = request.getParameter("WebSite").trim(); String description = request.getParameter("description").trim(); String companyid = request.getParameter("tempCompanyId").trim(); String stateId = request.getParameter("tempStateId").trim(); String timeZone = request.getParameter("timezone").trim(); String uploadCustomerLogo = request.getParameter("uploadCustomerLogo").trim(); String userName = request.getParameter("userName").trim(); String passWord = request.getParameter("passWord").trim(); String smtpInsertFlag = "NO"; String getCompanyId = null; updateSuccess = dbAccess.executeUpdate("update yosemitecompany set companyname='"+com.zoniac.util.Util.deQuoteForSingleQuote(companyName)+"', streetname1='"+com.zoniac.util.Util.deQuoteForSingleQuote(StreetName1)+"', streetname2='"+com.zoniac.util.Util.deQuoteForSingleQuote(StreetName2)+"', cityname='"+com.zoniac.util.Util.deQuoteForSingleQuote(City)+"', zipcode='"+com.zoniac.util.Util.deQuoteForSingleQuote(Zipcode)+"', phonenumber1='"+com.zoniac.util.Util.deQuoteForSingleQuote(officePhone)+"', fax1='"+com.zoniac.util.Util.deQuoteForSingleQuote(Fax1)+"', email1='"+com.zoniac.util.Util.deQuoteForSingleQuote(email)+"', website='"+com.zoniac.util.Util.deQuoteForSingleQuote(WebSite)+"', description='"+com.zoniac.util.Util.deQuoteForSingleQuote(description)+"',timezoneid="+timeZone+", stateid="+stateId+" where companyid='"+companyid+"'"); if(rs != null) { rs = null; dbAccess.close(); } } %> My customerDetail.jsp File <% String val = request.getParameter("val"); DBAccess dbAccess = Util.initDatabaseAccess(); ResultSet rs = null; String outputResult = null; String ff = "NO"; rs = dbAccess.executeQuery("select companyname,streetname1,streetname2,cityname,(select statename from state where stateid = (select stateid from yosemitecompany where companyid ="+val+"))as state,zipcode,phonenumber1,fax1,email1,website,description,companycode,companyid,(select stateid from state where stateid = (select stateid from yosemitecompany where companyid ="+val+"))as statecode,(select countryid from country where countryid =(select countryid from state where stateid = (select stateid from yosemitecompany where companyid ="+val+")))as countryid,timezoneid from yosemitecompany where companyid = "+val+""); if(rs.next()){ outputResult = rs.getString(1)+"$"+rs.getString(2)+"$"+rs.getString(3)+"$"+rs.getString(4)+"$"+rs.getString(5)+"$"+rs.getString(6)+"$"+rs.getString(7)+"$"+rs.getString(8)+"$"+rs.getString(9)+"$"+rs.getString(10)+"$"+rs.getString(11)+"$"+rs.getString(12)+"$"+rs.getString(13)+"$"+rs.getString(14)+"$"+rs.getString(15)+"$"+rs.getString(16); } rs = null; rs = dbAccess.executeQuery("select username,password from EMAILAUTHENTICATIONDETAILS where companyid="+val); if(rs.next()){ ff="YES"; outputResult += "$"+rs.getString(1)+"$"+rs.getString(2); } if(ff.equals("NO")){ outputResult += "$$"; } out.println(outputResult); outputResult = null; ff = "NO"; if(rs!=null) { rs = null; dbAccess.close(); } %>

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  • Does close ever throw an IOException?

    - by TofuBeer
    After providing some answers here, and reading some comments, it would seem that, in practice IOException is never thrown on close for file I/O. Are there any cases in which calling close on a Stream/Reader/Writer actually throws an IOException? If an exception is actually thrown, how should it be dealt with?

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  • PreparedStatement and setTimestamp in oracle jdbc

    - by Roman
    Hi everyone, I am using PreparedStatement with Timestamp in where clause: PreparedStatement s=c.prepareStatement("select utctimestamp from t where utctimestamp>=? and utctimestamp<?"); s.setTimestamp(1, new Timestamp(1273017600000L)); //2010-05-05 00:00 GMT s.setTimestamp(2, new Timestamp(1273104000000L)); //2010-05-06 00:00 GMT The result I get is different, when I have different time zones on the client computer. Is this a bug in Oracle jdbc? or correct behavior? The parameter is Timestamp, and I expected that no time conversions will be done on the way. The database column type is DATE, but I also checked it with TIMESTAMP column type with the same results. Is there a way to achieve correct result? I cannot change default timezone in the the whole application to UTC. Thanks for your help

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  • [Android] XML Parser

    - by lemon
    I'm trying to extract n0Y7ezLlIYA8R0K54rEmHaTOraBQVSPDjQaGlQxlGso4jdVN1kRxtcfskEs= using w3c dom <html> <div id='token' style='display:none;'> n0Y7ezLlIYA8R0K54rEmHaTOraBQVSPDjQaGlQxlGso4jdVN1kRxtcfskEs= </div> </html> but I seem to be stuck DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); Document doc = builder.parse(con.getInputStream()); NodeList list = doc.getElementsByTagName("div"); Can someone please point me to some basic tutorials that would help me solve my dilemma. Thanks.

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  • Possible loss of precision / [type] cannot be dereferenced

    - by Samuel
    I have been looking around a lot but i simply can't find a nice solution to this... Point mouse = MouseInfo.getPointerInfo().getLocation(); int dx = (BULLET_SPEED*Math.abs(x - mouse.getX()))/ (Math.abs(y - mouse.getY()) + Math.abs(x - mouse.getX()))* (x - mouse.getX())/Math.abs(x - mouse.getX()); In this constellation i get: Possible loss of precision, when i change e.g (x - mouse.getX()) to (x - mouse.getX()).doubleValue() it says double cannot be dereferenced, when i add intValue() somewhere it says int cannot be dereferenced. What's my mistake? [x, y are integers | BULLET_SPEED is a static final int] Thanks!

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  • XML Doc to JSP to TIFF

    - by SPD
    We have around 100 word templates, every time user gets a business request he goes into shared folder select the template he/she wants and enter information and save it as tiff, these tiffs later processed by some batch program. I am trying to automate this process. So I defined an XML which has Template information like <Template id="1"> <Section id="1"> <fieldName id="1">Date</fieldName> <fieldValue></fieldValue> <fieldtype></fieldType> <fieldProperty>textField</fieldProperty> </Section> <Section id="2"> <fieldName id="2">Claim#</fieldName> <fieldValue></fieldValue> <fieldtype></fieldType> <fieldProperty>textField</fieldProperty> </Section> </Template> Based on the template values I generate the JSP on fly. Now I would like to generate a TIFF file out of it in specified format. I am not sure how to handle this requirement. *edited the original question.

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  • How can I create an empty dummy HttpResponse

    - by jax
    I am using org.apache.http.HttpResponse I want to create an empty dummy resposne, I am going to use this to return when errors occur instead of passing back null. I tried to create one and it has lost of weird params. Can someone tell me how to create one.

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  • Changing JTextArea to JScrollPane Causes it to not be visible

    - by user1806716
    I am having an issue with JScrollPanes and JTextArea objects and getting them to work together. If I just add a JTextArea to my JPanel, it works fine and shows up where I tell it to. However, if I change the contentPane.add(textArea) to contentPane.add(new JScrollPane(textArea)), the textArea is not longer visible and there is no sign of the textarea either. Here is my code: public docToolGUI() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 611, 487); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(null); textField = new JTextField(); textField.setBounds(253, 323, 86, 20); contentPane.add(textField); textField.setColumns(10); JLabel lblEnterRootDirectory = new JLabel("Enter Root Directory"); lblEnterRootDirectory.setBounds(253, 293, 127, 20); contentPane.add(lblEnterRootDirectory); JButton btnGo = new JButton("Go"); btnGo.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent arg0) { new ToolWorker().execute(); } }); btnGo.setBounds(253, 361, 89, 23); contentPane.add(btnGo); textArea = new JTextArea(); textArea.setWrapStyleWord(true); textArea.setEditable(false); textArea.setBounds(25, 11, 560, 276); contentPane.add(new JScrollPane(textArea)); }

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  • Adding or reading some of the contact fields in sybian using j2me

    - by learn
    I want to add or read the fields of cotact like i am getting the telephone home no ContactList clist; Contact con; String no; if(cList.isSupportedAttribute(Contact.TEL, Contact.ATTR_HOME)) { con.addString(Contact.TEL, Contact.ATTR_HOME, no); } and mobile no if(cList.isSupportedAttribute(Contact.TEL, Contact.ATTR_MOBILE)) { con.addString(Contact.TEL, Contact.ATTR_MOBILE, mb); } now i want to get the fields internet telephone, push to talk, mobile(home), mobile(business), dtmf, shareview, sip, children, spouse and some more fields please help me.. Thanks in advance

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  • Why isn't this simple program working?

    - by user1445478
    I'm writing a very basic program that aims for the text view to display the phrase "Hello" after a button is pressed on the screen. However, I can't get this program to work; every time I run it, it says that the application has stopped unexpectedly. This is the program I wrote: public class EtudeActivityActivity extends Activity{ TextView tvResponse; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final TextView tvResponse = (TextView) findViewById (R.id.tvResponse); } public void updateTV(View v) { tvResponse.setText("Hello"); } } Also, I inserted an android:onClick = "updateTV" into my main.xml file for the button. Thanks for any help!

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  • MD5 and Hibernate Query

    - by theJava
    public Login authenticate(Login login) { String query = "SELECT L FROM Login AS L WHERE L.email=? AND L.password=?"; Object[] parameters = { login.getEmail(), login.getPassword() }; List<Login> resultsList = (getHibernateTemplate().find(query,parameters)); if (resultsList.isEmpty()) { //error dude } else if (resultsList.size() > 1) { //throw expections } else { Login login1 = (Login) resultsList.get(0); return login1; } return null; } I have my DB tables password col set as MD5, now how to retrieve it back here.

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