bytearray « API « Java I/O Q&A





1. I need to know the size of an inputstream [Java]    stackoverflow.com

My current situation is I have to read in a file and place it in an InputStream, and then also place the contents of the InputStreaminto a byte array which requires ...

2. Convert InputStream to byte[] in Java    stackoverflow.com

I want to read an image and convert it to byte[] for my use. What should I do?

3. Java Project Modules - use InputStream/OutputStream or .tmpFile/byte[]    stackoverflow.com

I found myself passing InputStream/OutputStream objects around my application modules. I'm wondering if it's better to
- save the content to disk and pass something like a Resource ...

4. java null pointer exception    stackoverflow.com

I'm getting java.lang.NullPointerException at while ((len = in.read(buf , 0 , buf.length)) >= 0) in following method:

public void copy(String  src, File dst) throws IOException {

  InputStream ...

5. Byte[] to InputStream or OutputStream    stackoverflow.com

I have a blob column in my database table, for which I have to use byte[] in my Java program as a mapping and to use this data I have to ...

6. Java File and ByteArray or InputStream - please quick help    stackoverflow.com

I want to use jFuge to play some MIDI music in an applet. There's a class for the MIDI pattern - Pattern - and the only method to load the pattern ...

7. OutputStream with ByteArrayOutputStream not writing    stackoverflow.com

So i'm trying to write out an object to a ByteArray, but for some reason it's not writting anything, which i see by the fact that the return value is 0, ...

8. byte[] to file in Java    stackoverflow.com

With Java: I have a byte[] that represents a file. How do I write this to a file (ie. C:\myfile.pdf) I know it's done with InputStream, but I can't seem to work it out. ...

9. Flex / LCDS : Serializing InputStream as ByteArray using BeanProxy    stackoverflow.com

I'm trying to serialize an object which has an InputStream. I need it to arrive on the flex client as a ByteArray. Note - I can't implement IExternalizable on this class, ...





10. Handle byte[] with ByteBuffer    stackoverflow.com

I try to access a byte[] via a ByteBuffer in order to represent a file-type I defined. The first positions within the byte[] contain some Metadata and get treated with bit-manipulations. ...

11. Convert byte-stream to character-stream in Java    stackoverflow.com

I think there is that one class where we can create it by specifying the encoding, feed byte streams into it and get character streams from it? The main point is ...

12. How would i extract certain patterns from an InputStream in java and then place into a byteArray    stackoverflow.com

i am looking for a method in java, to extract certain bytes from an input stream. for example i will have this stream of data occuring

0x01,0x02,0x00,0x01,0x00,0x01,0x03,0x04,0x00,0x01,0x09,0x08,0x00,0x01,0x00,0x01
my encoding scheme is type data ending firstly i ...

13. What's a more memory-efficient way of taking part of a byte[]?    stackoverflow.com

I've got a ByteArrayOutputStream of stereo audio data. Currently I'm doing this, which I know is bad:

WaveFileWriter wfw = new WaveFileWriter();
AudioFormat format = new AudioFormat(Encoding.PCM_SIGNED, 44100, 16, 1, 2, 44100, false);
byte[] ...

14. Fast ByteBuffer to CharBuffer or char[]    stackoverflow.com

What is the fastest method to convert a java.nio.ByteBuffer a into a (newly created) CharBuffer b or char[] b. By doing this it is important, that a[i] == b[i]. This means, that ...

15. Replacement for Java ByteBuffer in this case?    stackoverflow.com

Working with the Android Profiler tool, I've discovered that I'm using lots of ByteBuffers in a performance critical area of my code. I've worked on optimizing as much as possible of ...

16. Is it possible to convert strongly-typed data to bytes using the ByteBuffer class?    stackoverflow.com

Is it possible to convert strongly-typed data to bytes using the ByteBuffer class? If not, what is its main purpose? If yes, I am looking at its documentation and ...





17. Is there an explanation for the behavior of this Java ByteBuffer?    stackoverflow.com

I need to convert numerical values into byte arrays. For example, to convert a long to a byte array, I have this method:

public static byte[] longToBytes(long l) {
  ByteBuffer buff ...

18. BufferedWriter and ByteArray    coderanch.com

Hello. If anybody has a minute, I am coming up with blanks on this so far. What I am trying to do is write an input stream (say, an html page) to a new output stream that i want to keep in memory as a byte array. I keep getting nothing on it...if i stream it to a file at that ...

19. how to convert a Bytearray input stream to String    coderanch.com

Hi, I have to convert a ByteArryinputString to a string and then decode the string to ByteArrayInputStream. here is the code i am using to convert the Byte array input stream to String. generatedInputStream is of type ByteArrayInputStream: if(generatedInputStream != null){ byte[] buffer = new byte[generatedInputStream.available()]; int bytesRead; try { bytesRead = generatedInputStream.read(buffer); while (bytesRead >= 0) { generatedOutputStream.write(buffer, 0, bytesRead); ...