Convert number in reverse byte array?

Similar Questions

• 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:

  

• 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...

• Convert number 1 hexadecimal byte into digital text

  This should be simple, but the answer escapes me so far.

  The problem is that I am building a string of ASCII characters to send over a serial connection. The manufacturer uses a XOR checksum, resulting in a 1 byte number that needs to be appended to the ASCII string. And here's the catch, it must be exactly the number so if the checksum = 73, so they expect a string as such: (SVF, 10.0) 73 (I hope I put the value of correct checksum for the internal string between (()). It cannot be the hexadecimal value or equivalent ASCII, must be the number as text. Here's another one: (NUC) 58

  My check generates the correct values that I compared against example of manufacturers and C++ code of another person who worked with equipment for another project, but I didn't understand but how to make the value number ending up as text.

  Any suggestions?

  -Bill

  Hello NGC3123,

  I think what you are looking for is the function of the Value of Format . This should allow you to add your integer to string according to all required format you have.

  Kind regards

• Convert Int to byte array.

  Hello

  I am trying to convert an int to an array of bytes and stumbled upon a solution. However, it is not appropriate for BB/J2ME.

  byte[] bytes = ByteBuffer.allocate(4).putInt(1695609641).array();
  
  for (byte b : bytes) {
     System.out.format("0x%x ", b);
  }
  

  I have converted into loop, but not an alternative to System.out.format () there is no J2ME.

  How can I convert my whole in byte array?

  Thank you.

  Hi guys, sorry for the delay in responding. Basically, I have to send my ACR122U an int on NFC. If int is more than 255 does not in a single byte then I have to represent in an array of bytes, right?

  I think RexDoug is correct also, I don't understand masking and stuff like that. It's something that I've always been conscious of good :/

  Thank you guys.

  Here's what I went with:

    public byte[] intToBytes(int value) {
  
           return new byte[] {
                      (byte) ((value >>> 24) & 0xff),
                      (byte) ((value >>> 16) & 0xff),
                      (byte) ((value >>> 8) & 0xff),
                      (byte) (value & 0xff),
                    };
      }
  

  REF: http://stackoverflow.com/questions/9587605/java-integer-to-byte-array-blackberry-j2me/9587708#958770...

• 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:

  

• Converting a string to an array of integers (ints)

  I need to do ot an app that will read in numbers, or data means, in a text file on an SD card and then convert them in a line graph. Currently I am able to read the contents of a text file and store it as a string with this code

   private String readTextFile(String fName) {
          String result = null;
          FileConnection fconn = null;
          DataInputStream is = null;
          try {
            fconn = (FileConnection) Connector.open(fName, Connector.READ);
            is = fconn.openDataInputStream();
            byte[] data = IOUtilities.streamToBytes(is);
            result = new String(data);
          } catch (IOException e) {
            System.out.println(e.getMessage());
          } finally {
            try {
             if (null != is)
  
              is.close();
             if (null != fconn)
              fconn.close();
            } catch (IOException e) {
             System.out.println(e.getMessage());
            }
          }
          return result;
          }
  

  I am able to print the result of the chain of my test file so it prints something like "1 2 3 12 14 2 42.

  What I want to do convert this string to an array of int that will look like int [] result = {1, 2, 3, 12, 14, 2, 42}.

  I tried to use string.split("") as this seems to be what is generally done when I have the problem of google. When I try this however I get an error "the split (String) method is not defined for the String type.

  I just want to know if there is a way to convert this string to an array of integers (ints), or maybe is it possible to change my readTextFile method so that it will display the data in a table or working with the array of bytes to get distinct integers.

  Hi try this

• 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.

• Converting a string to an array of strings

  I have a string:

  (without the quotes)

  "Cin, August, B, D, e-test.

  I want to convert into a 1 d array of

  August

  B

  CIN

  D

  Crosshead

  I couldn't find a VI that does this. Best way to do it?

  EU wire a constant string array to the type of array. Works now.

  Thank you.

• Convert table 2D 1 d array of cluster of 2 elements

  Hello

  I would like to convert a 2D 1 d array of 2 elements cluster table, and I don't know how to do it.

  I use ImageToArray IMAQ for a 2D like this picture:

  0 0 0 255 255 0 0 0

  0 255 0 0 0 0 255 0

  255 0 0 0 0 0 0 255

  0 255 0 0 0 0 255 0

  0 0 0 255 255 0 0 0

  and now I would use IMAQ Fit circle 2 but he needs 'Picture 1 d of cluster of 2 elements' in the entry. Specifically, he needs an array of coordinated point cluster (with the cluster coordinated minimum 3 points).

  See my attached schema.

  Thank you very much

  
  

• Reverse an array to a graphical representation

  Hello world

  I am trying to reverse an array of data from a chart, however, when the array inverter function is used the data appear to be reversed only at halfway.  I'm confused on why this is happening. Thanks for any help.

  You will need to explain what you want this VI to do. When run with the default settings, there is only one element in the table.

  Everything that you do, I'm sure that the program is far too complicated.

• 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.

• Convert number to date format

  HI team,
  
  I have a problem, how we can convert number in date format?
  This is the result of the query.
  
  SQL > col START_TIME for 999999999999999999999999
  SQL > select start_time in qrtz_triggers;
  
  START_TIME
  -------------------------
  1364243906000
  1364589406000
  
  So, I have to change the date format niumber rto.
  
  My date format as for example: "" Mar 25,2013 20:36:45 ""
  
  
  Please suggest me...
  Thank you
  Chavigny
  
  Published by: 939938 on March 14, 2013 06:39

  This is the number of milliseconds since January 1, 1970.

  SQL> SELECT to_char(to_date('01/01/1970','mm/dd/yyyy')+1364243906000/24/60/60/1000
    2  ,'Mon dd, yyyy hh:mi:ss PM') FROM dual;
  
  TO_CHAR(TO_DATE('01/01/1970','
  ------------------------------
  Mar 25, 2013 08:38:26 PM
  

  So in your query instead of start_time use
  TO_CHAR (to_date (' 01/01/1970 ',' mm/DD/yyyy') + start_time/24/60/60/1000,' Mon DD, YYYY HH: mi: ss PM "")

  Published by: kendenny on March 14, 2013 08:31
  Had used mm instead of e for the minutes.