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  • Web apps or Desktop apps

    - by Ram
    If we compare Windows and Web applications against following criteria Insight of .NET and OS Design Patterns Logic development Development of a fresher into a good developer which one is better.

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  • How to seperate the model from the view?

    - by geejay
    I have a bunch of model objects. These objects end up being rendered as views (say forms) in a rich client app. I started to annotate the fields in the model objects (Java annotations) with things that let me render them as forms on the fly (e.g displayname, group, page, validvalues). I now realise that the view has crept into the model. How should I seperate the view logic out of the model objects? TECH: Java, Java Annotations, Eclipse RCP

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  • AS3 validate form fields?

    - by show
    Hi, I wrote a AS3 script, i have 2 fields to validate, i.e email and name. For email i use: function isValidEmail(Email:String):Boolean { var emailExpression:RegExp = /^[a-z][\w.-]+@\w[\w.-]+.[\w.-]*[a-z][a-z]$/i; return emailExpression.test(Email); } How about name field? Can you show me some sample code? EDIT: Invalid are: blank between 4 - 20 characters Alphanumeric only(special characters not allowed) Must start with alphabet

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  • Reading HTTP headers from JAX-WS Web Service

    - by Anonimo
    Hi all, I currently have a JAX-WS Web Service that receives some credentials in the HTTP header. These are used for BASIC authentication. There is a filter that performs authentication by reading the HTTP headers and checking against the database. Still, I need the username from within the Web Service in order to perform other service logic related stuff. Is there a way of accessing the HTTP headers from within the Web Service? Thanks.

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  • Is it possible to open a context menu from a map overlay item in android?

    - by John Nicholson
    This below code works fine opening an alert dialog. I was wondering if it's possible to open a context menu from within a map overlay class? @Override protected boolean onTap(int index) { OverlayItem item = mOverlays.get(index); AlertDialog.Builder dialog = new AlertDialog.Builder(mContext); dialog.setTitle(item.getTitle()); dialog.setMessage(item.getSnippet()); dialog.show(); return true; }

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  • C preprocessor: using #if inside #define?

    - by Wxy
    I want to write a macro that spits out code based on the boolean value of its parameter. So say DEF_CONST(true) should be expanded into "const", and DEF_CONST(false) should be expanded into nothing. Clearly the following doesn't work because we can't use another preprocessor inside #defines: #define DEF_CONST(b_const) \ #if (b_const) \ const \ #endif Any idea about how to do it?

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  • how to use method in AsyncTask in android?

    - by J.R.P
    In my application use JASON webservice to get data from Google Navigarion api. I use the Code is below. i got Exception android.os.NetworkOnMainThreadException. how to use AsyncTask? here is my code. Thanks.`public class MainActivity extends MapActivity { MapView mapView ; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); System.out.println("*************1**************1"); setContentView(R.layout.activity_main); System.out.println("*************2**************"); mapView = (MapView) findViewById(R.id.mapv); System.out.println("*************3**************"); Route route = directions(new GeoPoint((int)(26.2*1E6),(int)(50.6*1E6)), new GeoPoint((int)(26.3*1E6),(int)(50.7*1E6))); RouteOverlay routeOverlay = new RouteOverlay(route, Color.BLUE); mapView.getOverlays().add(routeOverlay); mapView.invalidate(); System.out.println("*************4**************"); } @SuppressLint("ParserError") private Route directions(final GeoPoint start, final GeoPoint dest) { //https://developers.google.com/maps/documentation/directions/#JSON <- get api String jsonURL = "http://maps.googleapis.com/maps/api/directions/json?"; final StringBuffer sBuf = new StringBuffer(jsonURL); sBuf.append("origin="); sBuf.append(start.getLatitudeE6()/1E6); sBuf.append(','); sBuf.append(start.getLongitudeE6()/1E6); sBuf.append("&destination="); sBuf.append(dest.getLatitudeE6()/1E6); sBuf.append(','); sBuf.append(dest.getLongitudeE6()/1E6); sBuf.append("&sensor=true&mode=driving"); Parser parser = new GoogleParser(sBuf.toString()); Route r = parser.parse(); System.out.println("********r in thread*****" +r); return r; } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @Override protected boolean isRouteDisplayed() { // TODO Auto-generated method stub return false; } } `

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  • how to selectively filter items in a collection

    - by Samuel
    I use the following snippet to filter the list of selected users, where isSelected is a boolean variable. Is there a simpler way (helper function) to populate the selectedUsers collection instead of writing the following lines of code. List<User> selectedUsers = new ArrayList<User>(0); for (User user : this.getUsers()) { if (user.isSelected()) { selectedUsers.add(user.getId()); } }

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  • DFS Backtracking with java

    - by Cláudio Ribeiro
    I'm having problems with DFS backtracking in an adjacency matrix. Here's my code: (i added the test to the main in case someone wants to test it) public class Graph { private int numVertex; private int numEdges; private boolean[][] adj; public Graph(int numVertex, int numEdges) { this.numVertex = numVertex; this.numEdges = numEdges; this.adj = new boolean[numVertex][numVertex]; } public void addEdge(int start, int end){ adj[start-1][end-1] = true; adj[end-1][start-1] = true; } List<Integer> visited = new ArrayList<Integer>(); public Integer DFS(Graph G, int startVertex){ int i=0; if(pilha.isEmpty()) pilha.push(startVertex); for(i=1; i<G.numVertex; i++){ pilha.push(i); if(G.adj[i-1][startVertex-1] != false){ G.adj[i-1][startVertex-1] = false; G.adj[startVertex-1][i-1] = false; DFS(G,i); break; }else{ visited.add(pilha.pop()); } System.out.println("Stack: " + pilha); } return -1; } Stack<Integer> pilha = new Stack(); public static void main(String[] args) { Graph g = new Graph(6, 9); g.addEdge(1, 2); g.addEdge(1, 5); g.addEdge(2, 4); g.addEdge(2, 5); g.addEdge(2, 6); g.addEdge(3, 4); g.addEdge(3, 5); g.addEdge(4, 5); g.addEdge(6, 4); g.DFS(g, 1); } } I'm trying to solve the euler path problem. the program solves basic graphs but when it needs to backtrack, it just does not do it. I think the problem might be in the stack manipulations or in the recursive dfs call. I've tried a lot of things, but still can't seem to figure out why it does not backtrack. Can somebody help me ?

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  • Calling helper function in Evaluate/Modify (Ctrl+F7) window

    - by m0f0
    Lets say i wrote helper for TStringList TslHelper = class helper for TStringList function DoSth: boolean; end; Then ive included this helper (unit in which helper is defined) in unit i want to use it. During debugging i hit Ctrl+F7 and i want to evaluate: someStringList.DoSth I cant get it to work. Is it possible? Regards

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  • Collision Detection for arbitrarily sized, positioned and rotated rectangles in XNA

    - by Stefan
    I'm working with xna in C# and in my game I will have a variety of space ships flying all over the place. They will each have an arbitrary rotation, size and position in space and I need a method to determine when they collide. Ideally the method would take two Rectangles, two doubles and two Vector2s for size, rotation and position respectively and return a boolean that indicates whether they have intersected or not.

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  • General Question about MD5

    - by chicane
    So im just playing around with PHP and the MD5 functionality, sorry if this sounds really silly, but I cant seem to understand, how is it possible to represent an unlimited number of characters of input into a 32 bit character output? Is my logic sound here? Or is there a limit to the input that a MD5 function can take? Thanks...

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  • A Surface view and a canvas to move Bitmap

    - by John Apple Sim
    I have a SurfaceView and I want the Bitmap Logo inside it in the canvas to be movable What I'm doing wrong ? static float x, y; Bitmap logo; SurfaceView ss = (SurfaceView) findViewById(R.id.svSS); logo = BitmapFactory.decodeResource(getResources(), R.drawable.logo); x = 40; y = 415; ss.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent me) { try { Thread.sleep(50); } catch (InterruptedException e) { e.printStackTrace(); } switch(me.getAction()) { case MotionEvent.ACTION_DOWN: x = me.getX(); y = me.getY(); break; case MotionEvent.ACTION_UP: x = me.getX(); y = me.getY(); break; case MotionEvent.ACTION_MOVE: x = me.getX(); y = me.getY(); break; } return true; } }); public class OurView extends SurfaceView implements Runnable{ Thread t = null; SurfaceHolder holder; boolean isItOK = false; public OurView(Context context) { super(context); holder = getHolder(); } public void run (){ while (isItOK == true){ //canvas DRAWING if (!holder.getSurface().isValid()){ continue; } Canvas c = holder.lockCanvas(); c.drawARGB(255, 200, 100, 100); c.drawBitmap(logo, x,y,null); holder.unlockCanvasAndPost(c); } } public void pause(){ isItOK = false; while(true){ try { t.join(); } catch (InterruptedException e) { e.printStackTrace(); } break; } t = null; } public void resume(){ isItOK = true; t = new Thread(this); t.start(); } } Now the surface view is just black .. nothing happens also its not colored 200, 100, 100

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  • changing "enabled" value of a button during runtime in flex

    - by ruchir patwa
    i want to make a button disabled if a datagrid is empty and it should be enabled when there is atleast 1 entry.the entries in the grid are made at runtime.I tried this this is the button: <mx:Button id="update" label="Update Contact" enabled="{isButtonEnabled()}"/> and the function is defined as where dg_contact is the datagrid: public function isButtonEnabled():Boolean { if(dg_contact.selectedIndex==-1) { return false; } else { return true; } } where am i going wrong?

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  • How to use T-SQL MERGE in this case?

    - by abatishchev
    I'm new to T-SQL command MERGE so I found a place in my SQL logic where I can use it and want to test it but can't figure out how exatcly should I use it: IF (EXISTS (SELECT 1 FROM commissions_history WHERE request = @requestID)) UPDATE commissions_history SET amount = @amount WHERE request = @requestID ELSE INSERT INTO commissions_history (amount) VALUES @amount) Plase suggest the proper usage. Thanks!

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  • .ASPX test page : Test FTP installed, Login password are correct

    - by Yagami
    Hi All I'm designing a Test.aspx page which give an overview regarding the status of several software : Windows service, Web application , Web service, Playout ... I have already a FTP.cs class which implement edtFTPnet.dll logic. I need just 3 things : How test if a server has an FTP Server solution installed or not. Check if FTP server is up or down Check if the giving login and password are correct Best regards

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  • how to bind ComboBox with DataTable

    - by niko
    Hi, I have the DataTable with following columns: id, Name, Description, ParentId and would like to create a WPF control (.NET 4.0 framework) which implements a combobox which displays the names which are bound to values of id. So when the user selects a name displayed in the combobox the behind logic has to retrieve its id value. I would be very thankful if anyone could show the way of doing the described above.

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