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  • How do I do multiple assignment in MATLAB?

    - by Benjamin Oakes
    Here's an example of what I'm looking for: >> foo = [88, 12]; >> [x, y] = foo; I'd expect something like this afterwards: >> x x = 88 >> y y = 12 But instead I get errors like: ??? Too many output arguments. I thought deal() might do it, but it seems to only work on cells. >> [x, y] = deal(foo{:}); ??? Cell contents reference from a non-cell array object. How do I solve my problem? Must I constantly index by 1 and 2 if I want to deal with them separately?

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  • How to analyse contents of binary serialization stream?

    - by Tao
    I'm using binary serialization (BinaryFormatter) as a temporary mechanism to store state information in a file for a relatively complex (game) object structure; the files are coming out much larger than I expect, and my data structure includes recursive references - so I'm wondering whether the BinaryFormatter is actually storing multiple copies of the same objects, or whether my basic "number of objects and values I should have" arithmentic is way off-base, or where else the excessive size is coming from. Searching on stack overflow I was able to find the specification for Microsoft's binary remoting format: http://msdn.microsoft.com/en-us/library/cc236844(PROT.10).aspx What I can't find is any existing viewer that enables you to "peek" into the contents of a binaryformatter output file - get object counts and total bytes for different object types in the file, etc; I feel like this must be my "google-fu" failing me (what little I have) - can anyone help? This must have been done before, right??

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  • PHP and JSON comment help..

    - by jay
    hi, guys thanks for looking my problem is that i cant seem to get jquery to display my generated data. here is my JSON output ("posts":[{"id":"1-2","time":"0","name":"dash","avatar":"http:\/\/www.gravatar.com\/avatar\/9ff30cc2646099e31a4ee4c0376091b0?s=182&d=identicon&r=PG","comment":"rtetretrete tet rt uh utert"},{"id":"2-2","time":"0","name":"james","avatar":"http:\/\/www.gravatar.com\/avatar\/d41d8cd98f00b204e9800998ecf8427e?s=182&d=identicon&r=PG","comment":"fsdfdfsdf\r\n"}]) and here is my jquery $(document).ready(function(){ var url="comments.php"; $.getJSON(url,function(json){ $.each(json.posts,function(i,post){ $("#content").append( '<div class="post">'+ '<h1>'+post.name+'</h1>'+ '<p>'+post.comment+'</p>'+ '<p>added: <em>'+post.time+'</em></p>'+ '<p>posted by: <strong>'+post.name+'</strong></p>'+ '<p>avatar: <strong>'+post.avatar+'</strong></p>'+ '</div>' ); }); }); });

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  • Creating a loop that will edit 60 TextBox names?

    - by Darkmage
    text box set1 = 1 to 30 = in the query name = br1id to br30id textbox set 2 = 1 to 30 = in the result output i dont understand how to create a loop based on 30 diffrent textbox names? i cant copy paste these lines 30 times editing the textbox names, that wold just look wrong. try { MySqlConnection mysqlCon = new MySqlConnection( "server= 195.159.253.229;" + "Database = bruker;" + "user id=bobby;" + "password=LoLOW###;"); MySqlCommand cmd1 = new MySqlCommand( "SELECT brukernavn From bruker where ID = '" + br1id.Text + "';", mysqlCon); mysqlCon.Open(); navX[0] = cmd1.ExecuteScalar().ToString(); br1txt3.Text = navX[0]; }

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  • Advantage database throws an exception when attempting to delete a record with a like statement used

    - by ChrisR
    The code below shows that a record is deleted when the sql statement is: select * from test where qty between 50 and 59 but the sql statement: select * from test where partno like 'PART/005%' throws the exception: Advantage.Data.Provider.AdsException: Error 5072: Action requires read-write access to the table How can you reliably delete a record with a where clause applied? Note: I'm using Advantage Database v9.10.1.9, VS2008, .Net Framework 3.5 and WinXP 32 bit using System.IO; using Advantage.Data.Provider; using AdvantageClientEngine; using NUnit.Framework; namespace NetworkEidetics.Core.Tests.Dbf { [TestFixture] public class AdvantageDatabaseTests { private const string DefaultConnectionString = @"data source={0};ServerType=local;TableType=ADS_CDX;LockMode=COMPATIBLE;TrimTrailingSpaces=TRUE;ShowDeleted=FALSE"; private const string TestFilesDirectory = "./TestFiles"; [SetUp] public void Setup() { const string createSql = @"CREATE TABLE [{0}] (ITEM_NO char(4), PARTNO char(20), QTY numeric(6,0), QUOTE numeric(12,4)) "; const string insertSql = @"INSERT INTO [{0}] (ITEM_NO, PARTNO, QTY, QUOTE) VALUES('{1}', '{2}', {3}, {4})"; const string filename = "test.dbf"; var connectionString = string.Format(DefaultConnectionString, TestFilesDirectory); using (var connection = new AdsConnection(connectionString)) { connection.Open(); using (var transaction = connection.BeginTransaction()) { using (var command = connection.CreateCommand()) { command.CommandText = string.Format(createSql, filename); command.Transaction = transaction; command.ExecuteNonQuery(); } transaction.Commit(); } using (var transaction = connection.BeginTransaction()) { for (var i = 0; i < 1000; ++i) { using (var command = connection.CreateCommand()) { var itemNo = string.Format("{0}", i); var partNumber = string.Format("PART/{0:d4}", i); var quantity = i; var quote = i * 10; command.CommandText = string.Format(insertSql, filename, itemNo, partNumber, quantity, quote); command.Transaction = transaction; command.ExecuteNonQuery(); } } transaction.Commit(); } connection.Close(); } } [TearDown] public void TearDown() { File.Delete("./TestFiles/test.dbf"); } [Test] public void CanDeleteRecord() { const string sqlStatement = @"select * from test"; Assert.AreEqual(1000, GetRecordCount(sqlStatement)); DeleteRecord(sqlStatement, 3); Assert.AreEqual(999, GetRecordCount(sqlStatement)); } [Test] public void CanDeleteRecordBetween() { const string sqlStatement = @"select * from test where qty between 50 and 59"; Assert.AreEqual(10, GetRecordCount(sqlStatement)); DeleteRecord(sqlStatement, 3); Assert.AreEqual(9, GetRecordCount(sqlStatement)); } [Test] public void CanDeleteRecordWithLike() { const string sqlStatement = @"select * from test where partno like 'PART/005%'"; Assert.AreEqual(10, GetRecordCount(sqlStatement)); DeleteRecord(sqlStatement, 3); Assert.AreEqual(9, GetRecordCount(sqlStatement)); } public int GetRecordCount(string sqlStatement) { var connectionString = string.Format(DefaultConnectionString, TestFilesDirectory); using (var connection = new AdsConnection(connectionString)) { connection.Open(); using (var command = connection.CreateCommand()) { command.CommandText = sqlStatement; var reader = command.ExecuteExtendedReader(); return reader.GetRecordCount(AdsExtendedReader.FilterOption.RespectFilters); } } } public void DeleteRecord(string sqlStatement, int rowIndex) { var connectionString = string.Format(DefaultConnectionString, TestFilesDirectory); using (var connection = new AdsConnection(connectionString)) { connection.Open(); using (var command = connection.CreateCommand()) { command.CommandText = sqlStatement; var reader = command.ExecuteExtendedReader(); reader.GotoBOF(); reader.Read(); if (rowIndex != 0) { ACE.AdsSkip(reader.AdsActiveHandle, rowIndex); } reader.DeleteRecord(); } connection.Close(); } } } }

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  • Shell Script - comparing lines of text, deleting matches

    - by SirRatty
    Hi all, I've done some searching for this but cannot find what I'm after, specifically. I have two files: "a.txt", "b.txt". Each contains a list of email addresses, separated by newlines. For all lines in "a.txt", I need to check for a match anywhere in "b.txt". If so, the email address in "a.txt" needs to be removed. (Alternatively, a new file "c.txt" could be created with the output if that is easier.) I'm using Mac OS X, so am looking for a shell script that could help, or pointers to how I'd go about constructing the script. Thanks for any help.

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  • What are the implications of having an "implicit declaration of function" warning in C?

    - by SiegeX
    As the question states, what exactly are the implications of having the 'implicit declaration of function' warning? We just cranked up the warning flags on gcc and found quite a few instances of these warnings and I'm curious what type of problems this may have caused prior to fixing them? Also, why is this a warning and not an error. How is gcc even able to successfully link this executable? As you can see in the example below, the executable functions as expected. Take the following two files for example: file1.c #include <stdio.h> int main(void) { funcA(); return 0; } file2.c #include <stdio.h> void funcA(void) { puts("hello world"); } Compile & Output $ gcc -Wall -Wextra -c file1.c file2.c file1.c: In function 'main': file1.c:3: warning: implicit declaration of function 'funcA' $ gcc -Wall -Wextra file1.o file2.o -o test.exe $ ./test.exe hello world

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  • Best approch for building link in JQuery with paramaters

    - by MrW
    Hi, Very new to JQuery and MVC and webdevelopment over all. I'm now trying to accomplish this and is asking for a bit of advise: I'm basically trying to build a filter with 4 input elements, and 1 output. I have 4 select (drop down) elements in my page. As soon as one of them is changed, I need to build a href and get the partial view with the return values. My questionis now if I should try to build the href in the select element or if I can do it once in jquery, and don't have to have duplicated code. How would I accomplish this?

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  • is there a tool to see the difference between two database tables in SQL Server?

    - by reinier
    What is a good tool to see the differences between 2 tables (or even better, the datasets returned by 2 queries). EDIT: I'm not interested in the schema changes. Just assume that the schemas are the same. background as to why: I'm porting some legacy code which can fill a database with some pre-calced data. The easiest way to see if I got everything right, is to check the output of the old program, with the new one. I was thinking that if there is some kind of 'diff' tool for databases, this might be great.

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  • BizTalk 2009 XSLT and Attribute Value Templates

    - by amok
    I'm trying to make use of attribute value type in a BizTalk XSL transformation to dynamically setting attribute or other element names. Read more here: http://www.w3.org/TR/xslt#dt-attribute-value-template The following code is an example of an XSL template to add an attribute optionally. <xsl:template name="AttributeOptional"> <xsl:param name="value"/> <xsl:param name="attr"/> <xsl:if test="$value != ''"> <xsl:attribute name="{$attr}"> <xsl:value-of select="$value"/> </xsl:attribute> </xsl:if> </xsl:template> Running this script in BizTalk results in "Exception from HRESULT: 0x80070002)" An alternative I was thinking of was to call a msxsl:script function to do the same but i cannot get a handle on the XSL output context from within the function. An ideas?

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  • Translate from Java to C#: simple code to re-encode a string

    - by Dr. Zim
    We were sent this formula to encrypt a string written in Java: String myInput = "test1234"; MessageDigest md = MessageDigest.getInstance("SHA"); byte[] myD = md.digest(myInput.getBytes()); BASE64Encoder en64 = new BASE64Encoder(); String myOutput = new String ( Java.net.URLEncoder.encode( en64.encode(myD))); // myOutput becomes "F009U%2Bx99bVTGwS3cQdHf%2BJcpCo%3D" Our attempt at writing this in C# is: System.Security.Cryptography.SHA1 sha1 = new System.Security.Cryptography.SHA1CryptoServiceProvider(); string myOutput = HttpUtility.UrlEncode( Convert.ToBase64String( sha1.ComputeHash( ASCIIEncoding.Default.GetBytes(myInput)))); However the output is no where near the same. It doesn't even have percent signs in it. Any chance anyone would know where we are going wrong?

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  • Ant Tokenizer: Selecting an individual Token

    - by John Oxley
    I have the following ant task: <loadfile property="proj.version" srcfile="build.py"> <filterchain> <striplinecomments> <comment value="#"/> </striplinecomments> <linecontains> <contains value="Version" /> </linecontains> </filterchain> </loadfile> <echo message="${proj.version}" /> And the output is [echo] config ["Version"] = "v1.0.10-r4.2" How do I then use a tokenizer to get only v1.0.10-r4.2, the equivalent of | cut -d'"' -f4

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  • empty() behavior

    - by lightalloy
    Maybe I'm asking a stupid question, but I can't understand this behavior: <?php $this->meeting->google_id = 'test'; $test = $this->meeting->google_id; var_dump(empty($test)); var_dump(empty($this->meeting)); var_dump(empty($this->meeting->google_id)); ?> gives output: bool(false) bool(false) bool(true) Why the result of empty($this->meeting->google_id); is true? And how should I check this property then?

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  • Events on controls in web server control

    - by MarkyMarc
    Hi All, I'm creating a web server control that has an image button on it. The html for the control is done in the RenderControls of the code, the control devrives from WebControl, IScriptControl, INamingContainer. The button is coded as follow in the RenderControls: System.Web.UI.WebControls.ImageButton img = new System.Web.UI.WebControls.ImageButton(); img.ImageUrl = "Url of the image"; img.Click += new ImageClickEventHandler(img_Click); img.ID = this.ClientID + "_img"; img.CausesValidation = false; imgLock.RenderControl(output); The button apreas in the browser but when i click on it, the page postsback but the event handler for the button doesn't get fired, from what i can figure out, since the control goes throught RenderControls eachtime the page is posted back, the button gets redrawn and the event handling disapears. This server control is in a master page. Anyone can help me on this? Thanks

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  • Call the method of base Class which was over ridden

    - by Abhijith Venkata
    I have illustrated my question in this example class Car { public void start(){ System.out.println("Car Started!!!"); } } class Mercedes extends Car { public void start(){ System.out.println("Mercedes Started!!!"); } } Now, in my main program, I write Mercedes m = new Mercedes(); m.start(); It prints: Mercedes Started!!! How do I call the start() method of Car class using the same object so that the output can be Car Started!!!. Edit: Actually It was asked in an interview I attended. I gave the super keyword answer. But the interviewer denied it. He said he'd give me a hint and said Virtual Function. I have no idea how to use that hint.

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  • Problem of using cin twice.

    - by gc
    Here is the code: string str; cinstr; cout<<"first input:"<<str<<endl; getline(cin, str); cout<<"line input:"<<str<<endl; The result is that getline never pauses for user input, therefore the second output is always empty. After spending some time on it, I realized after the first call "cinstr", it seems '\n' is still stored in cin (using cin.peek() to check), which ends getline immediately. The solution will be adding one more line between the first usage and the second one: cin.ignore(numeric_limits::max(), '\n'); However, I still don't understand, why is '\n' left there after the first call? What does istream& operator really do?

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  • Why it's not "if" and not "else"?

    - by Roman
    I have this code: $link = mysql_connect("localhost", "ctmanager", "pswsafgcsadfgG"); if ( ! $link ) die("I cannot connect to MySQL.<br>\n"); else print "Connection is established.<br>\n"; print "a"; if ( mysql_create_db("ct", $link) ) print "AAA"; else print "BBB"; print "2"; die(); And this is the output: Connection is established. a So, I cannot understand how it's possible that neither "AAA" no "BBB" is outputted. Is it because program dies at mysql_create_db?

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  • Difficulty creating a paging function with MySQL and ColdFusion

    - by Mel
    I'm trying to create pagination for search results using MySQL and ColdFusion. My intention is to only retrieve the queries that can be displayed on a single page, thus making the process efficient. I tried using two queries in my function, but I could not return two variables to the cfinvoke. The following code does not paginate, but it displays the result search results using a CFC: <!---DEFINE DEFAULT STATE---> <cfparam name="variables.searchResponse" default=""> <cfparam name="URL.titleName" default=""> <cfparam name="URL.genreID" default=""> <cfparam name="URL.platformID" default=""> <!---TitleName can only be blank if one or both genre and platform are selected---> <cfif StructKeyExists(URL, "searchQuery") AND (Len(Trim(URL.titleName)) LTE 2 AND Len(URL.genreID) IS 0 AND Len(URL.platformID) IS 0)> <cfset variables.searchResponse = "invalidString"> <cfelseif StructKeyExists(URL, "searchQuery")> <cfinvoke component="gz.cfcomp.test" method="searchGames" returnvariable="resultData" argumentcollection="#URL#"> <cfset variables.searchResponse = "hasResult"> </cfif> <cfif searchResponse EQ "hasResult" AND resultData.RecordCount EQ 0> <cfset variables.searchResponse = "noResult"> </cfif> Using this logic, I can display what I need to display on the page: <cfif searchResponse EQ "invalidString"> <cfoutput>Invalid search</cfoutput> </cfif> <cfif searchResponse EQ "noResult"> <cfoutput>No results found</cfoutput> </cfif> <cfif searchResponse EQ "hasResult"> <cfoutput>Display Results</cfoutput> </cfif> If I were executing the queries on the same page, it would be easy to follow the many tutorials out there. But the queries are executing in a function. Displaying the data is easy, but paginating it has become a nightmare for me. Here is my function: <cffunction name="searchGames" access="public" output="false"> <cfargument name="titleName" required="no" type="string"> <cfargument name="genreID" required="no" type="string"> <cfargument name="platformID" required="no" type="string"> <!--- DEFINE LOCAL VARIABLES---> <cfset var resultData = ""> <!---GET DATA---> <cfquery name="resultData" datasource="myDSN"> SELECT * <!---JOINS FOR GENRE/PLATFORM GO HERE---> WHERE <!---CONDITIONS GO HERE---> </cfquery> <!---RETURN VARIABLE---> <cfreturn resultData> </cffunction> To paginate, I thought about modifying my function to the following (a new query using a count statement): <!--- DEFINE LOCAL VARIABLES---> <cfset var resultCount = ""> <!---GET DATA---> <cfquery name="resultCount" datasource="myDSN"> SELECT COUNT(gameID) AS rowsFound FROM GAMES <!---JOINS FOR GENRE/PLATFORM GO HERE---> WHERE <!---CONDITIONS GO HERE---> </cfquery> <!---RETURN VARIABLE---> <cfreturn resultCount> Then I figured if there is a result to return, I would execute a nested query and create the pagination variables: <cfif resultCount.rowsFound GTE 0> <cfparam name="pageNumber" default="1"> <cfset var recordsPerPage = 5> <cfset var numberOfPages = Int(resultCount.RecordCount / recordsPerPage)> <cfset var recordsToSkip = pageNumber * recordsPerPage - recordsPerPage> <!---DEFINE LOCAL VARIABLE---> <cfset var resultData = ""> <cfquery name="resultData" datasource="myDSN"> <!---GET DATA AND SEND IT BACK USING LIMIT WITH #recordsToSkip# and #RecordsPerPage#---> </cfquery> <!---RETURN VARIABLE---> <cfreturn resultData> </cffunction> I figured I would return two variables: resultCount and resultData. I would use #resultCount# to build my pagination, and #resultData# to display the output. The problem is I can't return two variables in the same cfinvoke tag. Any ideas of how to approach the the right way? I'm totally lost as to the logic I need to follow.

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  • How to calculate the correct image size in out pdf using itextsharp ?

    - by MK
    I' am trying to add an image to a pdf using itextsharp, regardless of the image size it always appears to be mapped to a different greater size inside the pdf ? The image I add is 624x500 pixel (DPI:72): And here is a screen of the output pdf: And here is how I created the document: Document document = new Document(); System.IO.MemoryStream stream = new MemoryStream(); PdfWriter writer = PdfWriter.GetInstance(document, stream); document.Open(); System.Drawing.Image pngImage = System.Drawing.Image.FromFile("test.png"); Image pdfImage = Image.GetInstance(pngImage, System.Drawing.Imaging.ImageFormat.Png); document.Add(pdfImage); document.Close(); byte[] buffer = stream.GetBuffer(); FileStream fs = new FileStream("test.pdf", FileMode.Create); fs.Write(buffer, 0, buffer.Length); fs.Close(); Any idea why on how to calculate the correct size ?

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  • Java library for converting Word documents to PDFs or images

    - by mieze
    Hey there What I need to do is convert Microsoft Word .doc files to PDFs or images. This has to occur in Java. I have done a fair bit of investigation already. I've tried Davisor Publishor but it doesn't give me the accuracy that I need - for instance text overlapping in the output document. Adobe has something called LiveCycle. Anyone tried this? It looks quite massive and a bit of overkill (its an "integrated server solution"). Sounds expensive. Saying that, it doesn't have to be free, or cheap. Even if you just know some names, please shout them my way. Many thanks in advance. Doug

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  • Java JAX-WS web-service client: how log request & response xml ?

    - by EugeneP
    I created an implementation of LoggingHandler that implements SOAPHandler It should log whenever handleMessage triggers. [ And it is never called in my case ] then : MyService service = new MyService(); MyServicePort port = service.getPortType(); now I try this: BindingProvider bindingProvider = (BindingProvider)port; bindingProvider.getBinding().getHandlerChain().add(new LoggingHandler()); I do not see any request / response xml though. Can you suggest any solution? Maybe there's other way to see output and request xml s ?

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  • Why does it NOT give a segmentation violation?

    - by user198729
    The code below is said to give a segmentation violation: #include <stdio.h> #include <string.h> void function(char *str) { char buffer[16]; strcpy(buffer,str); } int main() { char large_string[256]; int i; for( i = 0; i < 255; i++) large_string[i] = 'A'; function(large_string); return 1; } It's compiled and run like this: gcc -Wall -Wextra hw.cpp && a.exe But there is nothing output. NOTE The above code indeed overwrites the ret address and so on if you really understand what's going underneath.

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  • Why would bytesTotal increase in a AS3 preloader?

    - by justkevin
    I'm creating a custom preloader for a Flex app and have noticed the following behavior: when loading, the progress bar goes to 100%, then down then back up, and so on until the app is finished loading. When I put a trace in the dowloadprogress listener, I see that while the app is loading, both bytesLoaded and bytesTotal increase, but not necessarily at the same time. Code: private function onDownloadProgress(event:ProgressEvent):void { var loaded:int = event.bytesLoaded; var total:int = event.bytesTotal; trace(event.target,loaded,total); _starfield.progress = loaded/total; } Output: [object Preloader] 134276 134276 [object Preloader] 265348 285007 [object Preloader] 285007 285007 [object Preloader] 678223 1322116 [object Preloader] 809295 1322116 [object Preloader] 1322116 1322116 [object Preloader] 1322116 1322116 [object Preloader] 1387652 1584342 [object Preloader] 1791882 1791882 [object Preloader] 2293133 2293133 [object Preloader] 2362938 2362938 [object Preloader] 2362938 2362938 [object Preloader] 2362938 2362938 Why does bytesTotal change during load?

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  • C++ Testing framework integrated with Eclipse

    - by Mike
    I'm writing a C++ unit testing framework and I would like it if it could be integrated with Eclipse CDT. In other testing suites that work with Eclipse, JUnit for example, the user is provided a graphical list of all test cases and their results. Something like this would be the ideal. I'm just getting into this, so I need some advice on getting started. There are two approaches I see Use an existing Eclipse testing plugin (such as JUnit) and make the framework return output in the same format as the plugin's input. Write a plugin from scratch that can work with my framework (seems like it would take a lot of time) Thoughts appreciated

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  • Convert byte array to understandable String

    - by Ender
    I have a program that handles byte arrays in Java, and now I would like to write this into a XML file. However, I am unsure as to how I can convert the following byte array into a sensible String to write to a file. Assuming that it was Unicode characters I attempted the following code: String temp = new String(encodedBytes, "UTF-8"); Only to have the debugger show that the encodedBytes contain "\ufffd\ufffd ^\ufffd\ufffd-m\ufffd\ufffd\/ufffd \ufffd\ufffdIA\ufffd\ufffd". The String should contain a hash in alphanumerical format. How would I turn the above String into a sensible String for output?

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