FAQ Database Discussion Community


Why i cannot show my byte[] image after converting it from bitmap?

java,android,bitmap,bytearray,scale
I'm trying to write a method that accepts an image(Bitmap) and returns a byte[] array. finally, I try to write this byte[] array to a folder so I can see the difference, but my byte[] arraycan not displayed, and in addition, it is not scaled down! This is my method:...

Convert Bitmap from array of bytes (byte[]) - Bitmap is still null

android,bitmap,jni,bytearray,decode
I have a byte array retrieved from JNI part of my application. The input to JNI was also a byte array of bitmap picture from camera in ARGB8888 format. C++ has modified my bitmap to grayscale, using FastCV function. Here is my code: Java: private void fcvTest(String fileName) { //path...

Byte Array to Byte conversion error

c#,bit-manipulation,byte,bytearray,implicit-conversion
I am trying to flip the bits of an unsigned 32-bit integer and output the resultant integer. The following is my code. int numberOfTries = Convert.ToInt32(Console.ReadLine()); for (int i = 0; i < numberOfTries; i++) { uint input = Convert.ToUInt32(Console.ReadLine()); byte[] bInput = BitConverter.GetBytes(input); if (BitConverter.IsLittleEndian) Array.Reverse(bInput); byte[] result =...

Writing ByteArray to file in c

c,pointers,bytearray,fwrite
I have a struct which holds some ByteArray data typedef struct { uint32_t length; uint8_t* bytes; } FREByteArray; And here I am trying to save this to a file FREByteArray byteArray; if((fileToWrite = fopen(filePath, "wb+")) != NULL){ fwrite(&byteArray.bytes, 1, byteArray.length, fileToWrite); fclose(fileToWrite); } But this doesn't seem to be saving...

Sorting byte arrays in numeric order

java,sorting,bytearray,comparator,leveldb
I have a persistent map that uses byte[] as the key. Access is via an iterator that takes an arbitrary comparator. As the byte arrays represent signed numeric values (integer or decimal) I would like to sort the byte[] numerically, such that the number following 1 is 2, and not...

xxHash convert resulting in hash too long

c#,bytearray,bitconverter
I'm using xxHash for C# to hash a value for consistency. ComputeHash returns a byte[], but I need to store the results in a long. I'm able to convert the results into an int32 using the BitConverter. Here is what I've tried: var xxHash = new System.Data.HashFunction.xxHash(); byte[] hashedValue =...

Android, When reading stored String byte array, it returns different byte array values

android,string,encryption,bytearray
I am trying to store String bytes into a text file, it worked perfectly in my pc but when i try to implement it into my android project it stores it but when i wanna get the string bytes back and convert it into the original bytes it doesnt work....

BLE Device Name irretrievable

android,bytearray,bluetooth-lowenergy,android-bluetooth
I have a project that is scanning for beacons that run on BLE. I can scan for the beacon and list them in a nice custom ListView just fine. However retrieving their names seems to not work. In my OnLeScan callback I use device.getName() which appears to always be returning...

Determine Facility Code and Card Number from ATR in C#

c#,.net,bytearray,smartcard,winscard
I have the following card reader HID Omnikey 5325. I have a contact-less card named HIS Proximity. The number written on this card is 133593 42101044091-3. By reading the card, I get the following ATR hex: 3B050002F10673 Using the folowing applications I have managed to see the following information. I...

Java socket receives byte array where each byte is 0

java,sockets,bytearray
I am making a program which takes a file, and sends it via socket to client. Client receives it and saves it to a file. That is what it is supposed to do. But somehow, byte array which client receives, contains only 0 bytes, so my output file is empty....

Android: byte array to decimal string

java,android,type-conversion,bytearray
I have a byte array and I have to print it in a textview, in two differents format : hex string decimal string For hex string I use this function (found on stackoverflow) : final protected static char[] hexArray = "0123456789ABCDEF".toCharArray(); public static String bytesToHex(byte[] bytes) { char[] hexChars =...

C# Find offset of byte pattern, check specific byte, change byte, export part of byte array

c#,arrays,byte,bytearray,offset
This could be long one. I do have a binary file, that contains some information. What I want to do: File (Binary) is read from OpenFileDialog I'm now searching for specific bytes in this file I'm getting offset of that byte, and then I'm checking byte value of offset+2 Basic...

In Perl, how can I convert an array of bytes to a Unicode string?

arrays,perl,utf-8,bytearray
Does anyone knows how to do this? Is this even possible? I've read about decode and encode but since I'm not an expert I don't know if it will help. ...

Opening a file in Python: bytes array converted to string?

python,tcp,pipe,bytearray
I have a text file with data such as b'\x00\x09\x00\xfe' This was piped into a text file from a TCP socket stream. Call this text file 'stream.txt'. I opened this file with the following code: f = open("stream.txt", "rb") bytes_read = f.read() When I open this file within another Python...

python convert bytearray to numbers in list

python,bytearray
For the following python codes: pt = bytearray.fromhex('32 43 f6 a8 88 5a 30 8d 31 31 98 a2 e0 37 07 34') state = bytearray(pt) If I use: print state It gives out 2Cö¨ˆZ0?11˜¢à74 Then how to recover the content in the bytearray? For example, to put them in...

Get subarray of byte

c#,arrays,bytearray
In C#, How I can get sub array of bytes like this byte[] arrByte1 = {11,22,33,44,55,66} I need reference for sub array of two bytes like 33 and 44 values. I found multiple options are there like Array.Copy, ArraySegment, LINQ (Skip and Take) in C#. what is best solution for...

Python3 How to make a bytes object from a list of integers

python,python-3.x,byte,bytearray
I have an array of integers (all less than 255) that correspond to byte values (i.e. [55, 33, 22]) how can I turn that into a bytes object that would look like b'\x55\x33\x22 etc. Thanks...

Storing Byte Array inside an Object, and then converting it to ObjectOutputStream? (Stuck)

java,bytearray,objectoutputstream
I'm kind of stuck with this problem. I have this FileDetails class which stores details/metadata of the file along with the complete file in a byte array. I want to send the FileDetails object inside ObjectOutputStream across network, where the receiver will simple read the file and cast it back...

Netica error or compression error? “buffer to decompress gzip 'internal' is too small”

java,bytearray,gzip,bytearrayinputstream
I'm using the Netica Java library in my code to read in a bayes net, enter findings, and save the updated bayes net in a byte array. The byte array saves perfectly fine (as far as I can tell) but I can't seem to load it back in using the...

how to pass a struct pointer from from c# to win32 DLL

c#,c++,dll,struct,bytearray
I want to pass byte array from C# to win32 DLL for some processes in c++! my c++ code typedef struct { int length; unsigned char value[10000000]; } wavfile; extern "C" __declspec(dllexport) int insert_In_Table(wavfile *w) { hashing HS( w->value , (unsigned int)w->length); return HS.insertIn_hashTable(); } and my C# [DllImport("HashCplusDll.dll" ,...

cast a stream or byte array to object

c#,unity3d,stream,bytearray,deserialization
In our game, to save a "Ghost" (a serializable class which is record of how someone played a level), we use straightforward BinaryFormatter bf = new BinaryFormatter(); FileStream file = File.Open(filePath, FileMode.Open); object ghost = bf.Deserialize(file); file.Close(); return (Ghost)ghost; Which works perfectly, and to save a Ghost, BinaryFormatter bf =...

Takes 25+ Seconds To Save Bitmap From Camera To Phone

java,android,bitmap,camera,bytearray
I am making a camera app. There has been a host of issues getting orientation right because some phones don't write EXIF orientation data. Because of this, I get the bitmap, save it (since I don't think I should read EXIF data from the byte[]), then rotate the bitmap, then...

How to get the byte[] used to construct a String?

java,string,character-encoding,bytearray
I have some binary data that is being encoded as a UTF-8 string. How can I get the original data back from the string? The binary data is in no particular character encoding, so I'm not sure what conversion will give me what I want. Consider the following minimal example:...

Picture (JPEG, PNG) from raw byte array in Linux/OpenCV

c++,opencv,bytearray
I have a byte array of 80*60 bytes that represent a picture with resolution 80x60 (1 byte per pixel). How do I convert it into picture that could be then used in OpenCV? I work in Linux with C++...

byte array[] to byte is it possible in java?

java,byte,bytearray
I know in java we can't deal with bit directly, I want to know how can we convert an byte array[] to byte. Such that String bytestr="00000011"; byte[] noofbytes=bytestr.getBytes(); byte convbyte=(noofbytes[]) to byte Is it possible ? does any one have any idea ? Thanks....

How to find out total number of bytes stored in ByteBuffer?

java,byte,bytearray,bytebuffer
I am trying to extract total number of bytes I have stored in my ByteBuffer data_record_value. Below is how we representdata_record_value as one Byte Array and then write to our database from Java code. Offset Length (in bytes) Purpose 0 2 - clientId byte array 2 8 - value of...

0x00 hex over TCP socket in QT

qt,tcp,hex,bytearray
I have problem with sending 0x00 over tcp. Data like 0x01 are ok, server receiving as 00000001, but when is 0x00 - no receive message on serwer. Client code: QByteArray sender="\x00"; socket.write(sender); Server code: QByteArray Data = socket->readAll(); QString str = QString(Data.toHex()); qDebug()<<str; //disp bytes char myByte = Data.at(0); for...

java MD5 encryption minus value in byte array

java,encryption,bytearray,md5,message-digest
Hello I am using below code to encrypt a string. I found MD5 make working in -127 - +128 values. I am getting value in minus for. public static void main(String[] args) throws Exception { String message = "smile"; encrypt("Jack the Bear"); } public static void encrypt(String password) throws Exception...

How can I convert a string or multiple strings into different ranges within a byte array in Java?

java,string,char,buffer,bytearray
I have a set of strings for fields like name, userID, email, etc. which need to go into a byte[] array of a certain size (1024 bytes). I would love to find a method/function that would allow me to simply use my index variable bufferPosition like the following: byteArray[bufferPosition] +=...

Handle windows-1252 and unicode in java [closed]

java,unicode,utf-8,character-encoding,bytearray
After a http request, I have got a byte array encoded with utf-8, e.g.: byte[] array = new byte[]{0xc3, 0xa4, 0xc2, 0x96} I decode the byte array using new String(array, "UTF-8"). In the example the first decoded char is 0xe4 which represents the letter ä in Unicode – so far...

Save image on disk from byte array (using EF), A generic error occurred in GDI+

c#,image,winforms,bytearray
I'm working on a winforms program that could get a byte array from a database, transform it as an image and save it on disk. The picture is displayed well in the PictureBox element however when I try to save the file, code throw an error : "the generic error...

Read a byte array from a redirected process

c#,image-processing,process,bytearray
I am using the process object in c# I am also using FFMPEG. I am trying to read the bytes from the redirected output. i know the data is an image but when I use the following code I do not get an image byte array. this is my code:...

Javascript (MVC) load image (byte array) from database

javascript,ajax,image,bytearray,src
There are many answers to this question here on Stack but none of them are working for me... I need to set the "src" attribute of an image tag in javascript from a byte array that I am retrieving via an ajax call to my controller. I have to do...

Byte array to struct

c#,struct,bytearray,converter
I'm having trouble converting the string parts of the byte array. My struct looks like this: [StructLayout(LayoutKind.Sequential, Pack = 1)] struct Message { public int id; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 10)] public string text; } Creation of test byte array: private static byte[] CreateMessageByteArray() { int id = 69; byte[] intBytes...

convert base64 Image to Sql Blob in JAVA

java,base64,bytearray,blob
I'm trying to convert Base64 to Blob in JAVA, I have developed this code so far and it's working but it's not a blob: public static BufferedImage decodeToImage(String imageString) { BufferedImage image = null; byte[] imageByte; try { BASE64Decoder decoder = new BASE64Decoder(); imageByte = decoder.decodeBuffer(imageString); ByteArrayInputStream bis = new...

Converting InkCanvas Strokes to a Byte Array and back again

c#,wpf,bytearray,converter,inkcanvas
I am working on a program which converts the inkcanvas strokes to a byte array for encryption and then saves it in a txt file. Essentially I need to convert a byte array to inkcanvas strokes. I have the first half of the code done (which converts the inkcanvas strokes...

Convert raw pixel data (as byte array) to BufferedImage

java,bytearray,bufferedimage,imagefilter
I have a requirement to use a native library which reads some proprietary image file formats (something about not reinventing our own wheel). The library works fine, it's just sometimes the images can get pretty big (the record I've seen being 13k x 15k pixels). The problem is my poor...

How do you save a Byte array in SQL?

sql,sql-server-2012,bytearray
How do you save a byte array into a cell in SQL using only SQL or SQL Server Management Studio? I converted an image into a byte array, and now I have a 1,000+ line byte array that I want saved in a (varbinary(max))cell in SQL. Trying to execute a...

What's the Pythonian way to append to a bytearray a list?

python,format,bytearray
I'm trying to append the contents of a list (which only contains hex numbers) to a bytearray. Right now I'm doing this and it works: payload = serial_packets.get() final_payload = bytearray(b"StrC") final_payload.append(len(payload)) for b in payload: final_payload.append(b) However, I believe it's not very Pythonian. Is there a better way to...

unable to convert uploaded image to byte array

c#,bytearray,binaryreader,httppostedfilebase
I am trying convert an uploaded image to a byte array so that I can store it in a database table. The code below is used to perform the conversion from an image into a byte array: public byte[] ConvertToBytes(HttpPostedFileBase image) { BinaryReader reader = new BinaryReader(image.InputStream); var imageBytes =...

Python/C#, Reading File into Byte Array - Not Quite the Same Result

c#,python,encoding,bytearray
I'm attempting to read a file and process it in both C# and IronPython, but I'm running into a slight problem. When I read the file in either language, I get a byte array that's almost identical, but not quite. For instance, the array has 1552 bytes. They're all the...

somebody can explain to me the behaviour of my code?

java,arraylist,bytearray
I was working on a little project where I was surprised by the strange behaviour of my Java code. public static void main(String[] args) throws NoSuchAlgorithmException { // getting the file File toCrypte = new File("sound.wav"); try { //converting file to byte array byte[] bytes =Files.readAllBytes(Paths.get(toCrypte.toURI())); // // for (byte...

How to incrementally iterate through all possible values of a byte array of size n.

c#,loops,byte,bytearray
For my question n=16, but a generic answer would be appreciated too. So I have a byte array: byte[] key; My problem is that I want to iterate through all possible values of each element in this array, combined. I know this will take ages, and I'm not looking to...

Skip bytes in ByteArray Java

java,png,bytearray,skip
My app reads a png-like file (in byte) and stores bytes into a byteArray. This is the method I use : public static byte[] read(File file) throws IOException { byte []buffer = new byte[(int) file.length()]; InputStream ios = null; try { ios = new FileInputStream(file); if ( ios.read(buffer) == -1...

Get half bytes from a byte

java,byte,bytearray
I have a SHA-512 generated byte array from some bytes. 484c1514b468429967aa0c8e2ab6d99c14e7cd4a45605cb834ebfd3612a0cc9184510d8d0a9c92e636d82c065fa2db0e05ef5c2518153a6c4ca9eebbe8d7b475 When I iterate like below; for(byte x = 0; x < s512in.length; x++){ System.out.println(String.format("%02X ", s512in[x]) + " ); } I can get 48,4C,15.... but I want to get 4,8,4,C... from the byte array. How can I get that...

How to improve speed with Receipt printer and ESC/POS commands in Java

java,byte,bytearray,thermal-printer,receipt
I have an application that communicates with a thermal printer in Java and makes the thermal printer print receipts with a barcode/emphasis/different sizes and so forth using a Star tsp 100 Printer. I can make the program print exaclty what i like but the printer is very slow. I believe...

overriding findResource

java,resources,bytearray,classloader
I have a custom ClassLoader and I want getResource to look for resources at a custom location. Therefore, What I want to do is to override findResource, as I want it to return an array of bytes as the result. The return type of the findResource function is URL. So...

java.io.StreamCorruptedException: invalid stream header: 48656C6C

java,bytearray,netty,objectinputstream
I am using netty client server for communication . The message is received successfully as byte array . When I convert byte array to ObjectInputStream I get the exception java.io.StreamCorruptedException: invalid stream header: 48656C6C at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:804) at java.io.ObjectInputStream.<init>(ObjectInputStream.java:299) at nettyClientServer2.PongHandler.messageReceived(PongHandler.java:99) at...

What is the best way to create byte data structure not fixed size in JAVA

java,data-structures,bytearray
I need to create data structure, lets call it ByteCache, which containes some amount of bytes and it should support such methods: 1) ByteCache.length() - returns amount of bytes stored in it 2) ByteCache.add(Byte[] bytes) - adds new bytes to the end of presently contained inside 3) ByteCache.get(int offset, int...

Convert ByteBuffer to byte array java

java,arrays,bytearray,bytebuffer
Does anyone know how to convert ByteBuffer to byte[] array? I need to get byte array from my ByteBuffer. When I run bytebuffer.hasArrray() it returns no. Every question I looked so far is converting byte array to byteBuffer, but I need it other way around. Thank you.

Java byteArray equivalent in JavaScript

java,javascript,node.js,byte,bytearray
I am trying to determine what encoding scheme will give me the numbers -1 or -40 (the starting numbers for the file) for a jpeg file type. A rest api I'm working on is expecting a byte array that looks like [-1, 94, 43, 34, etc]. In node.js I can...

Converting View to Byte Array to Print

java,android,printing,bytearray
I have a fragment that outputs plain text to the screen for viewing tickets. I am working on implementing a print function to print the content to a receipt printer (Star Micronics SM-T300i). I have the SDK installed and working, but I'm just not connecting the dots on how to...

Python-like Byte Array String representation in C#

c#,escaping,bytearray,ascii
Here is the method I am using to get this string representation: public static string ByteArrayToString(byte[] ba, string prefix) { StringBuilder hex = new StringBuilder(ba.Length * 2); foreach (byte b in ba) { if (prefix != null) { hex.Append(prefix); } hex.AppendFormat("{0:x2}", b); } return hex.ToString(); } Here is a sample...

Optimize byte array simple pattern matching

java,pattern-matching,bytearray
For an excercisement i had to look for a certain byte pattern within an byte array, easy enough but i wonder if the code can be simplified or even be optimized: package anti_virus; import java.nio.file.Files; import java.nio.file.Paths; public class Main { public static void main(String[] args) throws Exception { byte[]...

how do I set an Image which is Received in a Json Object thorough a web service as a response below…?

android,json,imageview,http-post,bytearray
how do i decode this to show in an ImageView...? in Android...

Creating base64 encoded JPG string from image from camera for upload

android,image,paperclip,bytearray,jpeg
I am building an Android app that takes photos, then uploads them to a Rails API. The api expects the base64 encoded raw file bytes, to be stored as a temp file representing the image in JPG format. However, the API is rejecting the uploaded file with this error message:...

Convert a List of objects to a byte array in c#

c#,bytearray
I have this struct definition: public struct ChangedByte { public byte R; public byte G; public byte B; public int x; public int y; } I have created a: List<ChangedByte> testme = new List<ChangedByte>(); (and added items to it) I convert this to an Array: ChangedByte[] alpha = testme.ToArray(); I...

Memory Stream Byte Array vs ImageConverter Byte Array

c#,bytearray,memorystream
I am converting a image to a byte array, then converting the bytes into something my epson printer can print this piece of code converts the picture into bytes fast ImageConverter converter = new ImageConverter(); buff = (byte[])converter.ConvertTo(signature, typeof(byte[])); this one is slow but works public static byte[] ImageToByte2(Image img)...

how to send extra data in sinch payload

android,push-notification,bytearray,sinch
I'm using sinch SDK and I use gcm to send push notification, what I do is registering the user using the function registerPushData (reg_id.getbytes ()),the reg_id is the GCM registeration id but I want to send extra things like the user name and id. I want to know how to...

How to save and retrieve image in a web database thru JSON in ANDROID

android,json,database,bitmap,bytearray
I'm trying to save and retrieve image to my web database using JSON but it's seems like I'm not doing it right problem is image is not being reproduce. Here are my codes For getting the image BitmapDrawable bitmapDrawable = ((BitmapDrawable)objectImage.getDrawable()); Bitmap b = bitmapDrawable.getBitmap(); ByteArrayOutputStream bos = new ByteArrayOutputStream();...

How can I convert bytes received in an AWS error message into something readable in Javascript?

javascript,amazon-web-services,amazon-s3,byte,bytearray
I'm trying to debug an wrong signature calculation when accessing Amazon S3 via JavaScript. AWS returns an XML document which includes: <StringToSignBytes>41 57 53 34 2d 48 4d 41 43 2d 53 48 41 32 35 36 0a 32 30 31 35 30 34 32 35 54 31 36 32...

circular bit shifting in byte array in java

java,bytearray,bit-shift
How to shift one byte(8 bit shifting) to the left for 16 byte array.? i.e. Array of 16 bytes: (0x) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F after shifting 8 bits left: output should be: (0x) 01 02 03 04 05...

Image to ByteArray to BLOB and BLOB to ByteArray to Image Conversion Issues in Java

java,image,bytearray,blob,ucanaccess
After a lot of learning on ByteArrays & BLOBS, I managed to write the below Java code to write an image into Access DB (Using ucanaccess) and writing it back to Disk. When I write an image back to disk the image is in incorrect format or something is messed...

Recombining several DatagramPackets into a single byte[]

java,udp,bytearray,datagram
Preface: I am NOT experienced at all and have likely made silly mistakes. Please correct these mistakes and teach me how to be better instead of berating me for being ignorant, if I wasn't already humbled by my lack of knowledge, I wouldn't need to ask for help. I have...

Generate 100 random numbers between 14-24 in java and place in byte array

java,random,bytearray,generator
i'm trying to make a method which can generate 100 random numbers between 14-24, and place it in my byte array before i'm going to send it to a server. My code so far looks like this: private byte data[] = new byte[100]; public void generateData() { int min =...

how to convert byte array to Japanese character

java,arrays,string,bytearray,inputstream
Some tool is sending me Japanese content as byte array. So using java I have to read that byte array and display the Japanese content. I am not getting any ideas for achieving this. Till now I tried with below mentioned program just to check how this conversion works: String...

How can I concatenate two bytes in java?

java,type-conversion,byte,bytearray,bucket
I have an integer called writeLocation that takes a value between [0,1023]. I need to store it in the last two bytes of a byte array called bucket. So, I figure I need to represent it as a concatenation of the array's last two bytes. How would I go about...

Byte Array Substring

c#,encoding,bytearray
I am trying to return a substring of a byte array. (another application is pushing data into my database, where files have a prepended GUID attached to it. I want to remove this GUID, when giving the file back to the user) if (bytes.Length > 38) { string s =...

remove UTF-8 char from end of a byte array

c,utf-8,bytearray
I want to remove utf8 chars from end of a byte array in C I've tried the code below for removing the character , the code works fine for 1 or 2 byte characters but doesn't work for removing characters requiring more than 2 bytes of space... I have 2...

Python 3 Struct unpack int and bytearray

python,python-3.x,struct,bytearray
I am using Python 3, receiving a bytearray through mqtt. The 1st 4 bytes is integer that is unix timestamp. The rest of the data is bytes that I am going to convert into base 64 string. How do I separate the integer and the data?

Add ByteArray to integer

java,bytearray,bytebuffer,data-stream
In the following java code-snippet you'll see this line packetLengthMax += bytes.toByteArray()[43]; My question is: How does this work? byte[] dataBuffer = new byte[265]; int packetLength = 0; int packetLengthMax = 44; ByteArrayOutputStream bytes = new ByteArrayOutputStream(); DataOutputStream outMessage = new DataOutputStream(bytes); /* Client = Socket*/ DataInputStream clientIn = new...

Byte conversion back to Image

vb.net,type-conversion,byte,bytearray
I'm trying to convert the bytes in plr.PlayerImage back into an image for the picturebox. However, Method 1 returns the error "Value of type Byte cannot be converted to 1-dimensional array of Byte" on plr.PlayerImage. Method 2 provides the error message "Conversion from type Byte() to type Byte is not...

byte array to string and inverse : recoverded byte array is NOT match to original byte array in Java

java,string,bytearray
I converted a byte array to string as follow, in Java: String str_bytearray = new String(bytearray_original); and then, I recovered original byte array using string, as follow: byte[] bytearray_recovered = str_bytearray.getBytes(); but I wondered when I compared bytearray_original and bytearray_recovered. the result is as follow: [48, 89, 48, 19, 6,...

How to convert an ArrayList of byte[] to an array of Integer in Android?

java,android,arraylist,integer,bytearray
I'm trying to convert an ArrayList<byte[]> listByte to an Integer[] arrInteger. I'm getting the listByteof pictues from a server through an object. My goal is to get this Array of Integer(pictures) to later use it in a ListView(arrayAdapter = new MyClass(MyActivity.this, stringArr, arrInteger);. I tried like this: ArrayList<Integer> integerList =...

Trim/Truncate string to a maximum number of bytes

vb.net,string,byte,bytearray,truncate
I am working with some MP3s in ASP.NET coding in VB and have come across a couple of problems with the ID3 tag length limits. It seems that most tags have a limit of 30 bytes. I know how to get the length in bytes of a string, but want...

Writing a byte array to a bmp java

java,arrays,image,bytearray
As the title suggests, I'm attempting to write a byte array to a bmp file in Java. Currently, my program successfully writes data to the file location, however it appears to be missing data and cannot be opened because of it. Of the two functions listed below the goal is:...

Forcing Unicode in byte variable

java,string,unicode,byte,bytearray
I recently discovered that you convert a String to a byte array in the following manner: String S = "ab"; byte arr[] = S.getBytes(); Now, I tried with String "\u9999" and the answer was [63]. I thought it would be 9999 (mod 128) = 15 which is actually what we...

How to read a response from a web service that returns a byte[]

java,rest,byte,bytearray
I've got this code of my web service: @GET @Produces(MediaType.APPLICATION_JSON) public static Response fillData(final Map<String, Object> data, final String name, @Context final ServletContext context) { ... final byte[] file = ... return Response.ok(file).build(); How can I read the response in my client? final javax.ws.rs.core.Response reponse = client.target(URL_REST).path("/path").request(MediaType.APPLICATION_JSON).get(); This is totally...

How to convert byte array to image in php?

php,image,image-processing,bytearray
I want to convert the byte array from a webservice to image. The webservice response array looks like the following but I could not figure out how to render this array back to an image. Please help me 'MemberImage' => array (size=151745) 0 => int 255 1 => int 216...

Show image as byte[] from database as graphic image in JSF page

image,jsf,bytearray
I have image content as byte[] from database. private byte[] image; How can I show that byte array as a real graphic image in JSF page?...

Remove 0-byte (UTF-8) characters in String

java,string,utf-8,network-programming,bytearray
I am currently programming a multi-player game, and I am working on the networking side of it all right now. I have a packet system set up, and the way it works (with Strings at least) is that it takes a number of characters to a maximum of "X" characters....

C# How to extract bytes from byte array? With known starting byte

c#,arrays,byte,bytearray
I need to get specific bytes from a byte array. I know the content of the first byte I want and I need x bytes after that. For example, I have byte [] readbuffer { 0, 1, 2, 0x55, 3, 4, 5, 6}; byte [] results = new byte[30]; and...