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  • custom ListView --Null pointer exception

    - by raghs
    this code throws a Null pointer exception. It was thrown by getChildAt(i). The getCount() returns the number of items in listView. But getChildAt(i) returns only if item is present in current list view. For example in a scrollable list view assume that there are 20 items. The getCount() returns 20. But getChildAt(20) returns null. Because it doesnot fit in listview. How to solve this problem?? int i,j=object.getCount(); View v=getListView(); CheckBox chk=null; for(i=0;i<j;i++) { chk=((CheckBox)((ViewGroup) v).getChildAt(i).findViewById(R.id.checkBox1)); if(chk.isChecked()) { //download the contents to specific folder in sd card } }

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  • IE7 and IE8: Float clearing without adding empty elements

    - by tk-421
    Hello, I'm having a problem similar to the one described here (without a resolution): http://stackoverflow.com/questions/2467745/ie7-float-and-clear-on-the-same-element The following HTML renders as intended in Firefox but not in (both) IE7 and IE8: <html> <head> <style> ul { list-style-type: none; } li { clear: both; padding: 5px; } .left { clear: left; float: left; } .middle { clear: none; float: left; } .right { clear: right; float: left; } </style> </head> <body> <ul> <li>1</li> <li class="left">2</li> <li class="right">3</li> <li class="left">4</li> <li class="middle">5</li> <li class="right">6</li> <li>7</li> </ul> </body> </html> This is a form layout, and in Firefox the results appear like: 1 2 3 4 5 6 7 That's what I'm going for. In IE7 and IE8 however, the results are: 1 2 3 5 6 4 7 [Note: I don't want to float anything to the right because I want the fields on my form to left-align correctly, without a giant space in-between the floated fields to account for the parent container's width.] Apparently I need a full clear, and can probably add an empty list-item element to the list to force clearing, but that seems like a dumb solution and sort of defeats the purpose. Any ideas? I've spent a few hours reading and trying different options without success.

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  • Connection and Collection Interfaces in Java

    - by Bhupi
    Which class implements all the Connection Interfaces which are in javax.microedition.io package and how? And in the same way which class implements the some of Collection interfaces like Iterator interface. I saw a code: - Iterator it; ArrayList list = new ArrayList(); it = list.iterator(); The iterator() return type is "Iterator" which is an interface. Please tell me what this code is doing is it returning an object of type Iterator? but as far as I know, interface can't be initialized.

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  • Dismiss Menu when Focus is lost, not on mouseout. jQuery

    - by Stacey
    I have jQuery that drops a menu down when its parent is clicked on, and dismisses it when they hover away from the menu. I am wanting to change the behavior so that it only dismisses if they click somewhere else on the page, or a different menu. Is this possible? jQuery.fn.dropdown = function () { return this.each(function () { $('.ui-dropdown-list > li > a').click(function () { $(this).addClass("ui-dropdown-hover"); }); $("ul.ui-dropdown-list > li > a").click(function () { $(this).parent().find("ul").show(); $(this).parent().hover(function () { }, function () { $(this).parent().find("ul").hide(); $(this).find('> a').removeClass("ui-dropdown-hover"); }); }); }); };

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  • Json Object to a Multidimensional C# Array?

    - by Nick Brooks
    Is there a way to convert a Json Object to a Multidimensional C# Array? I know it might be impractical but I can't be bothered to write classes and then deserialize the strings into them. List<string> ohyeah = (List<string>)JsonConvert.DeserializeObject(g.CommToken); That returns an Invalid Cast exception! Example: {"method":"getCommunicationToken","header":{"uuid":"9B39AAB0-49A6-AC7A-BA74-DE9DA66C62B7","clientRevision":"20100323.02","session":"c0d3e8b5d661f74c68ad72af17aeb5a1","client":"gslite"},"parameters":{"secretKey":"d9b687fa10c927f102cde9c085f9377f"}} I need to get something like that : j["method"]; //This will equal to getCommunicationToken j["header"]["uuid"]; //This will equal to 9B39AAB0-49A6-AC7A-BA74-DE9DA66C62B7 I literally need to parse the json object into an array.

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  • Permutations in python 2.5.2

    - by flpgdt
    Hi, I have a list of numbers for input, e.g. 671.00 1,636.00 436.00 9,224.00 and I want to generate all possible sums with a way to id it for output, e.g.: 671.00 + 1,636.00 = 2,307.00 671.00 + 436.00 = 1,107.00 671.00 + 9,224.00 = 9,224.00 671.00 + 1,636.00 + 436.00 = 2,743.00 ... and I would like to do it in Python My current constrains are: a) I'm just learning python now (that's part of the idea) b) I will have to use Python 2.5.2 (no intertools) I think I have found a piece of code that may help: def all_perms(str): if len(str) <=1: yield str else: for perm in all_perms(str[1:]): for i in range(len(perm)+1): #nb str[0:1] works in both string and list contexts yield perm[:i] + str[0:1] + perm[i:] ( from these guys ) But I'm not sure how to use it in my propose. Could someone trow some tips and pieces of code of help? cheers, f.

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  • InfoPath Getting SharePoint Group Information

    - by anon
    I have an InfoPath form embedded in an aspx page on a SharePoint site. How do I bind the SharePoint user groups to a drop-down list on my form? What I've tried so far is to create a data connection to a web service (method GetGroupCollectionFromWeb) to pull the data. Next, I open the list box properties, select "Look up values from an external data source", select the data source, assign the entries, and I get the following error: "You must select a repeating group or field." What I don't understand is that since the method I am calling is called GetGroupCollectionFromWeb, isn't the return value a collection? And aren't collections repeating by definition? What am I missing, and is there a workaround? Thank you.

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  • How can I create a menu in the start menu for my program?

    - by Joe
    This may be an easy question but I am not even sure of the terminology to search, so I have to ask. I want my program to have a menu when it is hovered over if it is pinned to the start menu. I am attaching a screenshot where windows powershell illustrates this function, and presents a list of tasks. Other programs sometimes use this to list recently opened files, etc. I am sure this is standard enough that there is a tutorial on it somewhere, would someone mind pointing me to it, or explaining how to do this? I hope that it doesn't matter too much what language is used, but I am proficient in Delphi, C++, and C#.

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  • Get all descendants types of base class

    - by user1260827
    I have a base class called BaseEvent and several descendants classes: public class BaseEvent { // the some properties ... } [MapInheritance(MapInheritanceType.ParentTable)] public class Film : BaseEvent { // the some properties ... } [MapInheritance(MapInheritanceType.ParentTable)] public class Concert : BaseEvent { // the some properties ... } I have a code which create the BaseEvent instance at runtime: BaseEvent event = new BaseEvent(); //assign values for a properties ... baseEvent.XPObjectType = Database.XPObjectTypes.SingleOrDefault(t => t.TypeName == "MyApp.Module.BO.Events.BaseEvent"); Now, this event will be shows in BaseEvent list view. I want to do the following: when a user click Edit button then show in list view lookup field with all descendants types. And when user saves record change ObjectType to selected value. How can I do this? Thanks. PS. this is asp.net app.

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  • How can I implement drag-out-to-delete in Flex?

    - by Chris R
    I have a List component from which I'd like to be able to remove items using drag & drop, but without having a specific target. If you use the mac, the behaviour I'm looking for is something like what the Dock uses; when you drag something out of the bounds of the control it should get an icon that indicates that it'll be deleted (OSX uses a cloud or something?) and then if you release it it will be removed from the list. How can I do this? (If I need to provide a more clear description, please comment; I'll fill in what I can)

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  • How can I sort an array, yet exclude certain elements (to be kept at the same position in the array)

    - by calumbrodie
    This will be implemented in Javascript (jQuery) but I suppose the method could be used in any language. I have an array of items and I need to perform a sort. However there are some items in the array that have to be kept in the same position (same index). The array in question is build from a list of <li> elements and I'm using .data() values attached to the list item as the value on which to sort. What approach would be best here? <ul id="fruit"> <li class="stay">bananas</li> <li>oranges</li> <li>pears</li> <li>apples</li> <li class="stay">grapes</li> <li>pineapples</li> </ul> <script type="text/javascript"> var sugarcontent = new Array('32','21','11','45','8','99'); $('#fruit li').each(function(i,e){ $(this).data(sugarcontent[i]); }) </script> I want the list sorted with the following result... <ul id="fruit"> <li class="stay">bananas</li> <!-- score = 32 --> <li>pineapples</li> <!-- score = 99 --> <li>apples</li> <!-- score = 45 --> <li>oranges</li> <!-- score = 21 --> <li class="stay">grapes</li> <!-- score = 8 --> <li>pears</li> <!-- score = 11 --> </ul> Thanks!

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  • Effective way of String spliting C#

    - by openidsujoy
    I have a completed string like this N:Pay in Cash++RGI:40++R:200++T:Purchase++IP:N++IS:N++PD:PC++UCP:598.80++UPP:0.00++TCP:598.80++TPP:0.00++QE:1++QS:1++CPC:USD++PPC:Points++D:Y++E:Y++IFE:Y++AD:Y++IR:++MV:++CP:~ ~N:ERedemption++RGI:42++R:200++T:Purchase++IP:N++IS:N++PD:PC++UCP:598.80++UPP:0.00++TCP:598.80++TPP:0.00++QE:1++QS:1++CPC:USD++PPC:Points++D:Y++E:Y++IFE:Y++AD:Y++IR:++MV:++CP: this string is like this It's list of PO's(Payment Options) which are separated by ~~ this list may contains one or more PO contains only Key-Value Pairs which separated by : spaces are denoted by ++ I need to extract the values for Key "RGI" and "N". I can do it via for loop , I want a efficient way to do this. any help on this.

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  • C# Class Factories

    - by Andy
    I have a class called Foo that has a function that looks like the following List<Bar> LoadData(); Both Foo and Bar are in a library that I want to reuse in other projects. Now I am working on a new project and I want to subclass Bar. Let's call it NewBar. What is a simple and flexible way to get Foo.LoadData to return a list of NewBar? I think that a factory is needed or perhaps just a delegate function. Can anyone provide an example? Thanks, Andy

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  • beginner Linq syntax and EF4 question

    - by user564577
    Question With the following linq code snip I get a list of clients with address filtered by the specifications but the form of the entities returned is not what i had expected. The data is 1 client with 2 addresses and 1 client with 1 address. The query returns 3 rows of clients each with 1 address Client 1 = Address1 Client 1 = Address2 Client 2 = Address3 var query = from t1 in context.Clients.Where(specification.SatisfiedBy()).Include("ClientAddresses") join t2 in context.ClientAddresses.Where(spec.SatisfiedBy()) on t1.ClientKey equals t2.ClientKey select t1; My expectation was a little more like a list with only two clients in it, one client with a collection of two addresses and one client with a collection of one address. Client 1 = Address1 / Address2 Client 2 = Address3 What am I missing??? Thanks!

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  • Core Data strategy using in memory cache, or no core data at all?

    - by randombits
    I have a user interface where the user can check off a bunch of items from a tableview, almost like a todo list. The items are populated from a Core Data stack. I need to be able to take all of the items they're clicking through and put them into a "temporary" shopping cart. Once they're in the shopping cart, users can go through the list and remove the items, or just submit them to a server. The thing is, the selected items are temporary just like an internet based shopping cart. It's nothing something that gets persisted once the application closes. Once the view is no longer in display, I can assume that the shopping cart is safe to discard. What's the best way to approach this? Since the user is essentially clicking on instances that map back to a Core Data entity .. should I setup a different persistence store such as in memory and add that store to my managed object context?

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  • Mysql search design

    - by neil
    I'm designing a mysql database, and i'd like some input on an efficient way to store blog/article data for searching. Right now, I've made a separate column that stores the content to be searched - no duplicate words, no words shorter than four letters, and no words that are too common. So, essentially, it's a list of keywords from the original article. Also searched would be a list of tags, and the title field. I'm not quite sure how mysql indexes fulltext columns, so would storing the data like that be ineffective, or redundant somehow? A lot of the articles are on the same topic, so would the score be hurt by so many of the rows having similar keywords? Also, for this project, solutions like sphinx, lucene or google custom seach can't be used -- only php & mysql. Thanks!

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  • Why doesn't C++ allow you to request a pointer to the most derived class?

    - by Matthew Lowe
    (This question should probably be answered with a reference to Stroustrup.) It seems extremely useful to be able to request a pointer to the most derived class, as in the following: class Base { ... }; class DerivedA { ... }; class DerivedB { ... }; class Processor { public: void Do(Base* b) {...} void Do(DerivedA* d) {...} void Do(DerivedB* d) {...} }; list<Base*> things; Processor p; for(list<Base*>::iterator i=things.begin(), e=things.end(); i!=e; ++i) { p.Do(CAST_TO_MOST_DERIVED_CLASS(*i)); } But this mechanism isn't provided in c++. Why?

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  • rails - form to disply non-input type fields in nested form

    - by nktokyo
    Hi, I guess this is a newbie question, but what is the syntax in a form to show contents of fields not as a text box/area, but rather like label would appear. <% form_for @user do |f| %> <% f.fields_for :user_ingreds do |builder| %> <p> <%= builder.??? %> </p> <% end %> <% end%> user has many user_ingreds and accepts_nested_attributes for user_ingreds. Basically I want to make a list of user_ingreds where the user can't edit the data but can remove the record from the list via a button - however the fields_for builder doesn't recognize a direct call to to the fields in user_ingreds model (ie, builder.user_id throws and error.

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  • Is there a way to highlight specific words or numbers without inserting a span tag?

    - by Taylor
    I've got blocks of text with various specs in them and want to have jquery highlight whatever matches a specific pattern without inserting any extra html. The following is the kind of text that I've got to work with. Intel® Core™ i7 Processor 920 (2.66GHz, 8MB cache, 4.8GT/sec)/ Genuine Windows® 7 Home Premium 64bit- English/ 640 GB Serial ATA non Raid (7200 Rpm)/ 6GB 1333MHz (3x2GB) Tri Channel Memory/ Display Not Included/ 16X DVD+/- RW Optical Drive (DVD & CD read and write)/ 1.8GB NVIDIA® GeForce™ GTX260 graphics card/ Integrated HDA 7.1 Dolby Digital Audio What I'm hoping jquery can do is highlight some of the basic specs without inserting any extra html. Maybe working off a list of values matching the spec format using some wildcards where neededed? The css to select the correct tag is #list div div div+p or I could just give the p class but would rather not. Is this kind of thing possible?

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  • Select from parent table return ID = 0 column values for child objects

    - by SaD
    Entities: public class Person { public Person(){} public virtual long ID { get; set; } } public class Employee : Person { public Employee(){} public virtual long ID { get; set; } public virtual string Appointment { get; set; } } Mappings: public class PersonMap : ClassMap<Person> { public PersonMap() { Id(x => x.ID) .GeneratedBy.Identity(); } } public class EmployeeMap : SubclassMap<Employee> { public EmployeeMap() { KeyColumn("ID"); Map(x => x.Appointment) .Not.Nullable() .Length(50); } } 2 items in Person table 1 item in Employee table (1 in base class, 1 in child class) Query:var list = Session.CreateQuery("from Person").List<Person>(); Return: 0 | ID = 1 1 | ID = 0, Appointment = "SomeAppointment"

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  • Java 7 New Features

    - by John W.
    I have done some good reading on the new java.util.concurrent features being introduced with the java 7 release. For instance, Phaser, TransferQueue and the more exciting Fork Join Framework. I recently saw a power point made by Josh Bloch about even more features that are going to be introduced however that link has been lost. For example I remember one change is being able to build a Map the same way you can build an array for: Map myMap = {"1,Dog","2,Cat"}; and so forth (this may not be 100% correct but the idea is there) Does anyone know of a list or just can name some new things to look forward to? Note: I did see a question asked http://stackoverflow.com/questions/213958/new-features-in-java-7 however it was asked ~2 years ago and I am sure the list of updates are more concrete. Thanks!

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  • Parsing csv line to Java objects

    - by Noobling
    I was wondering if someone here could help me, I can't find a solution for my problem and I have tried everything. What I am trying to do is read and parse lines in a csv file into java objects and I have succeeded in doing that but after it reads all the lines it should insert the lines into the database but it only inserts the 1st line the entire time and I don't no why. When I do a print it shows that it is reading all the lines and placing them in the objects but as soon as I do the insert it wants to insert only the 1st line. Please see my code below: public boolean lineReader(File file){ BufferedReader br = null; String line= ""; String splitBy = ","; storeList = new ArrayList<StoreFile>(); try { br = new BufferedReader(new FileReader(file)); while((line = br.readLine())!=null){ line = line.replace('|', ','); //split on pipe ( | ) String[] array = line.split(splitBy, 14); //Add values from csv to store object //Add values from csv to storeF objects StoreFile StoreF = new StoreFile(); if (array[0].equals("H") || array[0].equals("T")) { return false; } else { StoreF.setRetailID(array[1].replaceAll("/", "")); StoreF.setChain(array[2].replaceAll("/","")); StoreF.setStoreID(array[3].replaceAll("/", "")); StoreF.setStoreName(array[4].replaceAll("/", "")); StoreF.setAddress1(array[5].replaceAll("/", "")); StoreF.setAddress2(array[6].replaceAll("/", "")); StoreF.setAddress3(array[7].replaceAll("/", "")); StoreF.setProvince(array[8].replaceAll("/", "")); StoreF.setAddress4(array[9].replaceAll("/", "")); StoreF.setCountry(array[10].replaceAll("/", "")); StoreF.setCurrency(array[11].replaceAll("/", "")); StoreF.setAddress5(array[12].replaceAll("/", "")); StoreF.setTelNo(array[13].replaceAll("/", "")); //Add stores to list storeList.add(StoreF); } } //print list stores in file printStoreList(storeList); executeStoredPro(storeList); } catch (Exception ex) { nmtbatchservice.NMTBatchService2.LOG.error("An exception accoured: " + ex.getMessage(), ex); //copy to error folder //email } return false; } public void printStoreList(List<StoreFile> storeListToPrint) { for(int i = 0; i <storeListToPrint.size();i++){ System.out.println( storeListToPrint.get(i).getRetailID() + storeListToPrint.get(i).getChain() + storeListToPrint.get(i).getStoreID() + storeListToPrint.get(i).getStoreName() + storeListToPrint.get(i).getAddress1() + storeListToPrint.get(i).getAddress2() + storeListToPrint.get(i).getAddress3() + storeListToPrint.get(i).getProvince() + storeListToPrint.get(i).getAddress4() + storeListToPrint.get(i).getCountry() + storeListToPrint.get(i).getCurrency() + storeListToPrint.get(i).getAddress5() + storeListToPrint.get(i).getTelNo()); } } public void unzip(String source, String destination) { try { ZipFile zipFile = new ZipFile(source); zipFile.extractAll(destination); deleteStoreFile(source); } catch (ZipException ex) { nmtbatchservice.NMTBatchService2.LOG.error("Error unzipping file : " + ex.getMessage(), ex); } } public void deleteStoreFile(String directory) { try { File file = new File(directory); file.delete(); } catch (Exception ex) { nmtbatchservice.NMTBatchService2.LOG.error("An exception accoured when trying to delete file " + directory + " : " + ex.getMessage(), ex); } } public void executeStoredPro(List<StoreFile> storeListToInsert) { Connection con = null; CallableStatement st = null; try { String connectionURL = MSSQLConnectionURL; Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance(); con = DriverManager.getConnection(connectionURL, MSSQLUsername, MSSQLPassword); for(int i = 0; i <storeListToInsert.size();i++){ st = con.prepareCall( "IF EXISTS (SELECT * FROM tblPay@RetailStores WHERE StoreID = " + storeListToInsert.get(i).getStoreID() + " AND RetailID = "+ storeListToInsert.get(i).getRetailID() + ")" + " UPDATE tblPay@RetailStores " + " SET RetailID = '" + storeListToInsert.get(i).getRetailID() + "'," + " StoreID = '" + storeListToInsert.get(i).getStoreID() + "'," + " StoreName = '" + storeListToInsert.get(i).getStoreName() + "'," + " TestStore = 0," + " Address1 = '" + storeListToInsert.get(i).getAddress1() + "'," + " Address2 = '" + storeListToInsert.get(i).getAddress2() + "'," + " Address3 = '" + storeListToInsert.get(i).getAddress3() + "'," + " Address4 = '" + storeListToInsert.get(i).getAddress4() + "'," + " Address5 = '" + storeListToInsert.get(i).getAddress5() + "'," + " Province = '" + storeListToInsert.get(i).getProvince() + "'," + " TelNo = '" + storeListToInsert.get(i).getTelNo() + "'," + " Enabled = 1" + " ELSE " + " INSERT INTO tblPay@RetailStores ( [RetailID], [StoreID], [StoreName], [TestStore], [Address1], [Address2], [Address3], [Address4], [Address5], [Province], [TelNo] , [Enabled] ) " + " VALUES " + "('" + storeListToInsert.get(i).getRetailID() + "'," + "'" + storeListToInsert.get(i).getStoreID() + "'," + "'" + storeListToInsert.get(i).getStoreName() + "'," + "0," + "'" + storeListToInsert.get(i).getAddress1() + "'," + "'" + storeListToInsert.get(i).getAddress2() + "'," + "'" + storeListToInsert.get(i).getAddress3() + "'," + "'" + storeListToInsert.get(i).getAddress4() + "'," + "'" + storeListToInsert.get(i).getAddress5() + "'," + "'" + storeListToInsert.get(i).getProvince() + "'," + "'" + storeListToInsert.get(i).getTelNo() + "'," + "1)"); st.executeUpdate(); } con.close(); } catch (Exception ex) { nmtbatchservice.NMTBatchService2.LOG.error("Error executing Stored proc with error : " + ex.getMessage(), ex); nmtbatchservice.NMTBatchService2.mailingQueue.addToQueue(new Mail("[email protected]", "Service Email Error", "An error occurred during Store Import failed with error : " + ex.getMessage())); } } Any advise would be appreciated. Thanks

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  • Counting number of searches

    - by shinjuo
    I am trying to figure out how to get the total number of tests each search makes in this algorithm. I am not sure how I can pass that information back from this algorithm though. I need to count how many times while runs and then pass that number back into an array to be added together and determine the average number of test. main.c #include <stdio.h> #include <stdlib.h> #include <time.h> #include <stdbool.h> #include "percentage.h" #include "sequentialSearch.h" #define searchAmount 100 int main(int argc, char *argv[]) { int numbers[100]; int searches[searchAmount]; int i; int where; int searchSuccess; int searchUnsuccess; int percent; srand(time(NULL)); for (i = 0; i < 100; i++){ numbers[i] = rand() % 200; } for (i = 0; i < searchAmount; i++){ searches[i] = rand() % 200; } searchUnsuccess = 0; searchSuccess = 0; for(i = 0; i < searchAmount; i++){ if(seqSearch(numbers, 100, searches[i], &where)){ searchSuccess++; }else{ searchUnsuccess++; } } percent = percentRate(searchSuccess, searchAmount); printf("Total number of searches: %d\n", searchAmount); printf("Total successful searches: %d\n", searchSuccess); printf("Success Rate: %d%%\n", percent); system("PAUSE"); return 0; } sequentialSearch.h bool seqSearch (int list[], int last, int target, int* locn){ int looker; looker = 0; while(looker < last && target != list[looker]){ looker++; } *locn = looker; return(target == list[looker]); }

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