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  • Why RSA Decryption process takes longer time than the Encryption process?

    - by Tara Singh
    I have some idea that it is due to some complex calculation, but i want to know about what exactly happens which takes long time than the corresponding encryption process. Any link to webpage or paper would be of great help. Thanks Thanks for the answers, One more Doubt, What about the Signing and verification? Will this time difference be there for Signing and verification also? Ex. Signing requires more time than Verification?

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  • Can we build websites in Java

    - by Mirage
    IF some says to me to build webisite in java. What does that mean. That means building in core java, java servlets , jsp , java beans , j2ee or what. What thing i need to learn if some tells me to make webiste in java. Just like there are ready made login scripts in php , are those available in java as well thanks

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  • Process.Start to run exe in same folder as application is

    - by Hallgaws
    When I am running myProcess = Process.Start("something.exe") and want to start it using button it doen not find the file - i need to execute it from the same folder where application is how can i do that? Thank you. System could not find this file - but it is there . in the same folder as application. Using Visual Basic 2008 Express

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  • Regular expression to process key value pairs

    - by user677680
    I am attempting to write a regular expression to process a string of key value(s) pairs formatted like so KEY/VALUE KEY/VALUE VALUE KEY/VALUE A key can have multiple values separated by a space. I want to match a keys values together, so the result on the above string would be VALUE VALUE VALUE VALUE I currently have the following as my regex [A-Z0-9]+/([A-Z0-9 ]+)(?:(?!^[A-Z0-9]+/)) but this returns VALUE KEY as the first result.

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  • Spawning form in new process

    - by Mike_G
    I had originally created a windows form to be a dialog of my projects main form. Now the dialog is getting complex enough that it needs to be started in its own process. Is there a way to do this in code or do i need to create a new project and link my files to it?

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  • Lower CPU % used by FFMPEG Process via PHP (FLV Video Conversion)

    - by BoRo
    Hi, Okay, so I currently execute an ffmpeg command via PHP to run a video conversion. The Problem I'm Having is during the conversion, the ffmpeg process(es) use up so much CPU/Processing Power (near 100%), which slows down the response of my webserver. Is there a Way (crontab or script) I can limit the ffmpeg processes to a certain CPU percentage? Thanks,

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  • CruiseControl [.Net] vs TeamCity for continuous integration?

    - by zappan
    i would like to ask you which automated build environment you consider better, based on practical experience. i'm planning to do some .Net and some Java development, so i would like to have a tool that supports both these platforms. i've been reading around and found out about CruiseControl.NET, used on stackoverflow development, and TeamCity with its support for build agents on different OS-platforms and based on different programming languages. so, if you have some practical experience on both of those, which one you prefer and why. currently, i'm mostly interested in the ease of use and management of the tool, much less in the fact that CC is open source, and TC is a subject to licensing at some point when you have much projects to run (because, i need it for a small amount of projects). also, if there is some other tool that meets the above-mentioned and you believe it's worth a recommendation - feel free to include it in the discussion.

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  • Running cmd commands via .NET?

    - by a2h
    System.Diagnostics.Process proc0 = new System.Diagnostics.Process(); proc0.StartInfo.FileName = "cmd"; proc0.StartInfo.WorkingDirectory = Path.Combine(curpath, "snd"); proc0.StartInfo.Arguments = omgwut; And now for some background... string curpath = System.IO.Path.GetDirectoryName(Application.ExecutablePath); omgwut is something like this: copy /b t.wav + y.wav + p.wav + e.wav + space.wav + i.wav + n.wav + space.wav + s.wav + o.wav + m.wav + e.wav + space.wav + t.wav + e.wav + x.wav + t.wav + space.wav + h.wav + e.wav + r.wav + e.wav + space.wav + a.wav + n.wav + d.wav + space.wav + p.wav + y.wav + r.wav + o.wav + space.wav + w.wav + i.wav + l.wav + l.wav + space.wav + s.wav + h.wav + o.wav + w.wav + space.wav + h.wav + i.wav + s.wav + space.wav + r.wav + e.wav + n.wav + d.wav + i.wav + t.wav + o.wav + n.wav + space.wav output.wav And nothing happens at all. So obviously something's wrong. I also tried "copy" as the executable, but that doesn't work.

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  • Process: Unable to start service com.google.android.gms.checkin.CheckinService with Intent

    - by AndyRoid
    I'm trying to build a Google map application but keep receiving this in my LogCat. I have all the permissions and meta-data set in my manifest, but am still dumbfounded by this error. Have looked everywhere on SO for this specific error but found nothing relating to com.google.android.gms.checkin A little bit about my structural hierarchy. MainActivity extends ActionBarActivity with three tabs underneath actionbar. Each tab has it's own fragment. On the gMapFragment I create a GPSTrack object from my GPSTrack class which extends Service and implements LocationListener. The problem is that when I start the application I get this message: I have all my libraries imported properly and I even added the google-play-services.jar into my libs folder. I also installed Google Play Services APKs through CMD onto my emulator. Furthermore the LocationManager lm = = (LocationManager) mContext.getSystemService(LOCATION_SERVICE); in my GPSTrack class always returns null. Why is this and how can I fix these issues? Would appreciate an explanation along with solution too, I want to understand what's going on here. ============== Code: gMapFragment.java public class gMapFragment extends SupportMapFragment { private final String TAG = "gMapFragment"; private GoogleMap mMap; protected SupportMapFragment mapFrag; private Context mContext = getActivity(); private static View view; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { if (view != null) { ViewGroup parent = (ViewGroup) view.getParent(); if (parent != null) { parent.removeView(view); } } try { super.onCreateView(inflater, container, savedInstanceState); view = inflater.inflate(R.layout.fragment_map, container, false); setupGoogleMap(); } catch (Exception e) { /* * Map already there , just return as view */ } return view; } private void setupGoogleMap() { mapFrag = (SupportMapFragment) getFragmentManager().findFragmentById( R.id.mapView); if (mapFrag == null) { FragmentManager fragManager = getFragmentManager(); FragmentTransaction fragTransaction = fragManager .beginTransaction(); mapFrag = SupportMapFragment.newInstance(); fragTransaction.replace(R.id.mapView, mapFrag).commit(); } if (mapFrag != null) { mMap = mapFrag.getMap(); if (mMap != null) { setupMap(); mMap.setOnMapClickListener(new OnMapClickListener() { @Override public void onMapClick(LatLng point) { // TODO your click stuff on map } }); } } } @Override public void onAttach(Activity activity) { super.onAttach(activity); Log.d("Attach", "on attach"); } @Override public void onDetach() { super.onDetach(); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public void onResume() { super.onResume(); } @Override public void onPause() { super.onPause(); } @Override public void onDestroy() { super.onDestroy(); } private void setupMap() { GPSTrack gps = new GPSTrack(mContext); // Enable MyLocation layer of google map mMap.setMyLocationEnabled(true); Log.d(TAG, "MyLocation enabled"); // Set Map type mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL); // Grab current location **ERROR HERE/Returns Null** Location location = gps.getLocation(); Log.d(TAG, "Grabbing location..."); if (location != null) { Log.d(TAG, "location != null"); // Grab Latitude and Longitude double latitude = location.getLatitude(); double longitude = location.getLongitude(); Log.d(TAG, "Getting lat, long.."); // Initialize LatLng object LatLng latLng = new LatLng(latitude, longitude); Log.d(TAG, "LatLng initialized"); // Show current location on google map mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); // Zoom in on google map mMap.animateCamera(CameraUpdateFactory.zoomTo(20)); mMap.addMarker(new MarkerOptions().position( new LatLng(latitude, longitude)).title("You are here.")); } else { gps.showSettingsAlert(); } } } GPSTrack.java public class GPSTrack extends Service implements LocationListener{ private final Context mContext; private boolean isGPSEnabled = false; //See if network is connected to internet private boolean isNetworkEnabled = false; //See if you can grab the location private boolean canGetLocation = false; protected Location location = null; protected double latitude; protected double longitude; private static final long MINIMUM_DISTANCE_CHANGE_FOR_UPDATES = 10; //10 Meters private static final long MINIMUM_TIME_CHANGE_FOR_UPDATES = 1000 * 60 * 1; //1 minute protected LocationManager locationManager; public GPSTrack(Context context) { this.mContext = context; getLocation(); } public Location getLocation() { try { //Setup locationManager for controlling location services **ERROR HERE/Return Null** locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE); //See if GPS is enabled isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER); //See if Network is connected to the internet or carrier service isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER); if (!isGPSEnabled && !isNetworkEnabled) { Toast.makeText(getApplicationContext(), "No Network Provider Available", Toast.LENGTH_SHORT).show(); } else { this.canGetLocation = true; if (isNetworkEnabled) { locationManager.requestLocationUpdates( LocationManager.NETWORK_PROVIDER, MINIMUM_TIME_CHANGE_FOR_UPDATES, MINIMUM_DISTANCE_CHANGE_FOR_UPDATES, this); Log.d("GPS", "GPS Enabled"); if (locationManager != null) { location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); if (location != null) { latitude = location.getLatitude(); longitude = location.getLongitude(); } } } } } catch (Exception e) { e.printStackTrace(); } return location; } public void stopUsingGPS() { if (locationManager != null) { locationManager.removeUpdates(GPSTrack.this); } } public double getLatitude() { if (location != null) { latitude = location.getLatitude(); } return latitude; } public double getLongitude() { if (location != null) { longitude = location.getLongitude(); } return longitude; } public boolean canGetLocation() { return this.canGetLocation; } public void showSettingsAlert() { AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext); //AlertDialog title alertDialog.setTitle("GPS Settings"); //AlertDialog message alertDialog.setMessage("GPS is not enabled. Do you want to go to Settings?"); alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Intent i = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS); mContext.startActivity(i); } }); alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub dialog.cancel(); } }); alertDialog.show(); } @Override public void onLocationChanged(Location location) { // TODO Auto-generated method stub } @Override public void onStatusChanged(String provider, int status, Bundle extras) { // TODO Auto-generated method stub } @Override public void onProviderEnabled(String provider) { // TODO Auto-generated method stub } @Override public void onProviderDisabled(String provider) { // TODO Auto-generated method stub } @Override public IBinder onBind(Intent intent) { // TODO Auto-generated method stub return null; } } logcat 06-08 22:35:03.441: E/AndroidRuntime(1370): FATAL EXCEPTION: main 06-08 22:35:03.441: E/AndroidRuntime(1370): Process: com.google.android.gms, PID: 1370 06-08 22:35:03.441: E/AndroidRuntime(1370): java.lang.RuntimeException: Unable to start service com.google.android.gms.checkin.CheckinService@b1094e48 with Intent { cmp=com.google.android.gms/.checkin.CheckinService }: java.lang.SecurityException: attempting to read gservices without permission: Neither user 10053 nor current process has com.google.android.providers.gsf.permission.READ_GSERVICES. 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2719) 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.app.ActivityThread.access$2100(ActivityThread.java:135) 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1293) 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.os.Handler.dispatchMessage(Handler.java:102) 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.os.Looper.loop(Looper.java:136) 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.app.ActivityThread.main(ActivityThread.java:5017) 06-08 22:35:03.441: E/AndroidRuntime(1370): at java.lang.reflect.Method.invokeNative(Native Method) 06-08 22:35:03.441: E/AndroidRuntime(1370): at java.lang.reflect.Method.invoke(Method.java:515) 06-08 22:35:03.441: E/AndroidRuntime(1370): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 06-08 22:35:03.441: E/AndroidRuntime(1370): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 06-08 22:35:03.441: E/AndroidRuntime(1370): at dalvik.system.NativeStart.main(Native Method) 06-08 22:35:03.441: E/AndroidRuntime(1370): Caused by: java.lang.SecurityException: attempting to read gservices without permission: Neither user 10053 nor current process has com.google.android.providers.gsf.permission.READ_GSERVICES. 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.app.ContextImpl.enforce(ContextImpl.java:1685) 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.app.ContextImpl.enforceCallingOrSelfPermission(ContextImpl.java:1714) 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.content.ContextWrapper.enforceCallingOrSelfPermission(ContextWrapper.java:572) 06-08 22:35:03.441: E/AndroidRuntime(1370): at imq.c(SourceFile:107) 06-08 22:35:03.441: E/AndroidRuntime(1370): at imq.a(SourceFile:121) 06-08 22:35:03.441: E/AndroidRuntime(1370): at imq.a(SourceFile:227) 06-08 22:35:03.441: E/AndroidRuntime(1370): at bwq.c(SourceFile:166) 06-08 22:35:03.441: E/AndroidRuntime(1370): at com.google.android.gms.checkin.CheckinService.a(SourceFile:237) 06-08 22:35:03.441: E/AndroidRuntime(1370): at com.google.android.gms.checkin.CheckinService.onStartCommand(SourceFile:211) 06-08 22:35:03.441: E/AndroidRuntime(1370): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2702) AndroidManifest <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.app" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="19" /> <uses-permission android:name="com.curio.permission.MAPS_RECEIVE" /> <uses-permission android:name="android.permission.CAMERA" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /> <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" /> <uses-feature android:name="android.hardware.camera" android:required="true" /> <uses-feature android:glEsVersion="0x00020000" android:required="true" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="com.app.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" /> <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AI........................" /> </application>

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  • Sublime Text 2 Keyboard shortcut to open file in Chrome/firefox in windows

    - by samdroid
    I followed the instruction for windows 7 to setup chrome. No luck! { "cmd":["C:\Program Files (x86)\Google\Chrome\Application", "$C:\Users\gmu\Desktop\June_15_2012"] } after entering the file location/path under what format should I have to save. I am a noobie. sorry to ask this question. Anything helps! If I press f7 getting the following message Error trying to parse build system: Invalid escape in C:\Users\gmu\AppData\Roaming\Sublime Text2\Packages\User\Chrome.sublime-build:2:9 Thanks

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  • Deciding between Apache Commons exec or ProcessBuilder

    - by Moev4
    I am trying to decide as to whether to use ProcessBuilder or Commons exec, My requirements are that I am simply trying to create a daemon process whose stdout/stdin/stderr I do not care about. In addition I want to execute a kill to destroy this process when the time comes. I am using Java on Linux. I know that both have their pains and pitfalls (such as being sure to use separate thread to swallow streams can lead to blocking or deadlocks, and closing the streams so not to leave open files hanging around)and wanted to know if anyone had suggestions one way or the other as well as any good resources to follow.

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  • Automatically generate table of function pointers in C.

    - by jeremytrimble
    I'm looking for a way to automatically (as part of the compilation/build process) generate a "table" of function pointers in C. Specifically, I want to generate an array of structures something like: typedef struct { void (*p_func)(void); char * funcName; } funcRecord; /* Automatically generate the lines below: */ extern void func1(void); extern void func2(void); /* ... */ funcRecord funcTable[] = { { .p_func = &func1, .funcName = "func1" }, { .p_func = &func2, .funcName = "func2" } /* ... */ }; /* End automatically-generated code. */ ...where func1 and func2 are defined in other source files. So, given a set of source files, each of which which contain a single function that takes no arguments and returns void, how would one automatically (as part of the build process) generate an array like the one above that contains each of the functions from the files? I'd like to be able to add new files and have them automatically inserted into the table when I re-compile. I realize that this probably isn't achievable using the C language or preprocessor alone, so consider any common *nix-style tools fair game (e.g. make, perl, shell scripts (if you have to)). But Why? You're probably wondering why anyone would want to do this. I'm creating a small test framework for a library of common mathematical routines. Under this framework, there will be many small "test cases," each of which has only a few lines of code that will exercise each math function. I'd like each test case to live in its own source file as a short function. All of the test cases will get built into a single executable, and the test case(s) to be run can be specified on the command line when invoking the executable. The main() function will search through the table and, if it finds a match, jump to the test case function. Automating the process of building up the "catalog" of test cases ensures that test cases don't get left out (for instance, because someone forgets to add it to the table) and makes it very simple for maintainers to add new test cases in the future (just create a new source file in the correct directory, for instance). Hopefully someone out there has done something like this before. Thanks, StackOverflow community!

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  • How to share code with continuous integration

    - by alchemical
    I've just started working in a continuous integration environment (TeamCity). I understand the basic idea of not getting so abstracted out in your code that you are never able to build it to test functionality, etc. However, when there is deep coding going on, occasionally it will take me several days to get buildable code--but in the interim other team members may need to see my code. If I check the code in, it breaks the build. However, if I don't check it in, my team members are unable to see the most recent work. I'm wondering how this situation is best dealt with.

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