Convert Int to byte array.

Similar Questions

• Convert InputStream into byte array

  Hey everybody,

  I really need help with this problem that I can not get rid! I am doing an application that loads an image saved on the BB device and sends it to a server, the problem is we can send only a byte [].

  So I try to apply the following method:

  -Loading the image via the FileConnection class

  -Open an InputStream from the FileConnection said

  -Convert an array of bytes as InputStream

  The code should look like this I guess:

  FileConnection file = (FileConnection) Connector.open ("Original_SealV.jpg");
  InputStream is = file.openInputStream ();

  Byte [] img = null;
  int temp = is.read ();
  {while(Temp>0)}

  Convert bytes here?

  }

  This is the last step I'm missing, I tried several methods, but could not run, so I beg for a bit of the collective wisdom of these forums...

  Could someone help me? I will not forget the congratulations!

  or you can always use the standard API

  Byte [] buf = IOUtilities.streamToBytes (stream);

• How to convert to unsigned int byte array?

  Greetings,
  
  I have no particular knowledge of Java programming, and I have a problem with a conversion.
  
  The exception thrown is "number Format Exception for the input string:"249"when I run the following code:
  
  ReadBytes = SocketInput.Read (bMessage);
  NetMessage = new String (bMessage);
  NetMessage = NetMessage.substring (0, readbytes);
  
  If (NetMessage.Equals ("NORES"))
  NetMessage = '0 '.
  
  int Res = 0;
  Try
  {
  RES = Byte.valueOf (NetMessage);
  }
  catch (NumberFormatException nfe)
  {
  AddMessage ("Number Format Exception" + nfe.getMessage () + "[" + bMessage.toString () + "]");
  }

  The java Byte / byte data type is signed and contains values from-128 to 127. Why not use Integer.valueOf () instead (which is not signed or said by the way) and look
  [url http://download.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html] in Java primitive data types.

  In your code example, there is no byte (byte []) array, while mention you in the subject...

• How to convert a string to byte array

  Hello

  I want to convert a string with a hexadecimal number in the array of bytes, this string includes a cutting-edge information, but I don't want to add this tip to arry bytes.

  detailed information please see the photo. I hope someone can give me some instructions, thank you very much.

  

  The accepted solution of Giedrius.S is not correct, based on the image shown in the first post. That the solution will not eliminate the spaces before the tip, and the string to byte array to convert individual characters '0', '8', 'space', '9', etc. for them to byte values. The right solution, based on the image below:

  

• convert the data to array of bytes of screenshot?

  Hello

  I'm capture the screenshot of the screen of the device as bitmap data. Can I convert it to a byte array?

  Please help me through this.

  Thanks in advance

  in my knowledge base, I found a link to a similar question:
  http://supportforums.BlackBerry.com/Rim/Board/message?board.ID=java_dev&thread.ID=736

  I did not try the search for forums - have you?

• Get a PNG of bitmap byte array

  Hey people. Look at the code below (continues after the code). (I use JDE 4.7 and tests on the simulator of Bold 9700 (OS 5.0)).

  
      private static Bitmap LoadBitmap(String uri) {
  
          InputStream in = null;
          FileConnection filecon = null;
          String exceptionText = null;
          byte[] bitmapBytes = new byte[1000000];
          boolean fileExists = false;
          int numBytes = 0;
  
          try {
              filecon = (FileConnection) Connector.open(uri, Connector.READ);    
  
              if (filecon.exists()) {
                  in = filecon.openInputStream();
                  numBytes = in.read(bitmapBytes, 0, 1000000);
                  in.close();
                  if (numBytes != 1)
                      fileExists = true;
              }
          }
          catch (Exception e) {
                      String logMessage = e.getMessage();
                      if ( EventLogger.logEvent( 0x4c9d3452d87922f2L, logMessage.getBytes(), EventLogger.ALWAYS_LOG ) ) {
                          System.out.println("Log Successful!");
                      }
          }
  
          Bitmap bm = null;
  
          if (fileExists) {
  
              String imageExtension = uri.substring(uri.length() - 4); // e.g. .png or .jpg or .gif
  
              if (imageExtension.equals(".png")) {
                  PNGEncodedImage image = (PNGEncodedImage)EncodedImage.createEncodedImage(bitmapBytes, 0, bitmapBytes.length);
                  bm = image.getBitmap();   // Chokes at present
              }
              else if (imageExtension.equals(".gif")) {
                  GIFEncodedImage image = (GIFEncodedImage)EncodedImage.createEncodedImage(bitmapBytes, 0, bitmapBytes.length);
                  bm = image.getBitmap();   // Chokes at present
              }
              else {
                  EncodedImage image = EncodedImage.createEncodedImage(bitmapBytes, 0, bitmapBytes.length);
                  bm = image.getBitmap();
              }
  
          }
  
          return bm;
  
      }
  

  Your code for reading from a file into a byte array has some problems. More important is the use of an InputStreamReader, which is to convert each byte in a character using the ISO-8859-1 default encoding. You are truncating each character for a byte and those writing in the file, which has probably garbage inside.

  Try this for the reading of the resource in a byte array:

  InputStream is = convertResourceToFile.getResourceAsStream("/" + resName);
  byte[] bytes = IOUtilities.streamToBytes(is);
  is.close();
  

  By reading the data back from the file, use a similar code. You should be aware that when you try to read a link like this:

  numBytes = in.read(bitmapBytes, 0, 1000000);
  

  There is no guarantee that the entrance is worn out from here that one call. It has guaranteed only that read() will consume at least one character, unless there is no more input. (I have no idea, however, why numBytes is greater than the size of the file. Have you verified that this is indeed the case - that the file is not that big?)

• Generate PrivateKey using byte array

  Hello
  
  I'm working on my school project, where I should simulate the DDA authentication. I placed my public and private keys inside byte [] variables in the applet, and in order to encrypt and decrypt messages I need to convert these arrays of bytes to the PublicKey and PrivateKey objects. I know that javacard.security defines a key factory class keyBuilder, but I can't understand how to use this class, to rebuild my keys, which are in the byte array. Is there a way to do this?
  
  Thank you
  Vuk

  hem. toString? a string? JavaCard know only 8 and 16-bit atomic types and tables. No int. No tank. No java.lang.String.

  How long have you studied javacard?

  the offcard entity will get the keys in arrays of bytes, put them in APDU, send the APDU to the javacard inside the map applet using javax.smartcardio. the javacard applet will then store the buffers received in key forums.

  I think you're mixing offcard code of java and applet javacard "at a distance". There is no magical conduit between java objects and plastic in a card; you need to send APDU commands to the cmdlet to store your keys inside the applet. This means developing a bunch of javacard code that will run in the map, using GlobalPlatform to download the code of the card.

  See here for pointers to base on the map technology.
  APDU and contactless

  Best regards and good luck.

• Numbers of string to byte array

  I try to use "Byte array to string" if I display the byte array, I can see the last two items are the numbers 4-8 (ASCII 52 56) but when I use the "Byte Array to necklace" and add an indicator of the 48 is missing?  Ignore this palette number 0-9?  Is there another way to easily convert an array of bytes into a string with numbers.  What I am doing wrong?

  I'm looking, but I can't believe I can't find an example of this?

  
  

• BYTE array to float?

  I am relatively new to Labview and haven't found an example of this on these forums.  Any help would be greatly appreciated!

  I read in a stream of characters from a series device, and I would like to convert a 4-byte string (or Byte array) to a float value.  Is there a way to do this in labview?

  For example, I have the table {0x4b, 0x1c, 0 x 90, 0x42} = 0x4b1c9042 = 72.055260 float value

  I can do this in c by:

  Char [] floatarray is {0x4b, 0x1c, 0 x 90, 0x42, 0x00};.

  memcpy (floatarray, & floatvalue sends);

  printf ("float \nMy value is %f", floatvalue);  give 72.055260 for floatvalue

  Is there a way to do this in Labview?

  Note that if you get the chain in that order, you need to invert the first string:

  

• How to convert a single byte String?

  Purpose:

  Show a result byte on the BB 9900 screen.

  Question:

  How to convert a single byte String?

  Part of the code:

  byte value = con.cpu_config.elementAt (i)

  stop here

  String valuestring = new String (value);

  _rtf. SetText (valueString);

  If you know how to fix it, please share your idea.

  Thank you for your attention,

  String valuestring = new String (new byte [] {value}};)

  _data. Append (valueString);

  _rtf. SetText (_data.toSrting ());

  Solve it.

• several images capture and read their path to send the byte array to the web service

  Hello

  Have a problem when the image capture, the requirement is to open the camera and capture multiple images, and once done it should send the array of bytes to the web service, wrote the class with reader and Video Control of the code and then using the saved file to store image API, but when the user capture multiple images it replaces previous if I keep the path to say dynamic by using the date and time then how I just know what images are recently captured and their path, one time I know that the path of recently captured using new fileconnection images can read the image byte array.

  Hi Nishant,

  find the attached code. In this demo, you will find:

  (1) the use of the listner log file system

  (2) how to move data from one folder to another.

  (3) how to read file system byteArray.

• How to convert int to String

  How to convert int to String. I get the error 'cannot convert integer to int.

  Dim str As String = "abc";

  int NB = Integer.valueOf (str);

  Use Integar.parseInt (). But make sure your str contains the integer value (like str = '123') otherwise you will get the exception.

  String str = "123"; int num = Integer.parseInt(str);
  

  Concerning

  Bika

• Question about the RAF read byte array, method

  Hello
  
  I use file access random byte array read method to read a file. I will print each line, when printing to the last line, it is added with some null characters.
  
  Can you please suggest how to remove null characters in the last line?

  I use file access random byte array read method to read a file. I will print each line, when printing to the last line, it is added with some null characters.

  No, you're ignoring the read count returned by the method and the treatment of the whole buffer.

• Save obj as a byte array?

  is it possible to write a byte array object (in the Air)? Or should I serialize?

  I tried - but get an error...

  
  function saveObj (obj:Object, sFilename:String) {}
  
  application path und unterpfad en treat - sonst security error!
  var adir:String = .nativePath (File.applicationDirectory.resolvePath(""))
  var file:File = new queue (adir + "/" + sFilename);

  var fs:FileStream = new FileStream();

  FS. Open (file, FileMode.WRITE);
  fs.writeUTFBytes (dat);
  fs.writeBytes ((obj));
  FS. Close();
  }

  You should get an error... fs.writeBytes takes a ByteStream, not an object. You can create a ByteStream first and then use the method writeObject of it to serialize your object - then what to write in your stream. Something like:

  var ba: ByteArray = new ByteArray();

  ba.writeObject (obj);

  fs.writeBytes (ba);

• Sending the image byte array

  Hello friends

  Please guide me how can I send a table yte my UIcopmonent bitmap with the size of the 0.4 scale.

  In fact my my UIComponet size is 234 X 390 and I hv to send the byte array to the PHP end with size 90 X 150.

  This is so, how can I draw an image with the smallest size.please guide me almost 0.4 scale image.

  When I usedthis code

  var bmd:BitmapData = new BitmapData(cnvParent.width,cnvParent.height,true,0xffffff);
  var mt:Matrix new matrix());
  Mt.Scale (.4,.4);
  BMD. Draw (cnvParent, MT);
  var jpgencoder:PNGEncoder = new PNGEncoder();
  byteArray = jpgencoder.encode (bmd);

  It shows nothing after conversion to byte array. Please help me out of this problem, I have confused mtotally

  Thanks and greetings

  Vineet osho

  Hello

  If you acknowledged the answers when given to previous requests for help may call a friend people would sound more sincere. You where showed how scaling of images already was what process does not?

  David.