unicode « byte « Java Data Type Q&A

  1. Java Data Type Q&A
  2. byte
  3. unicode




1. How do I truncate a java string to fit in a given number of bytes, once UTF-8 encoded?    stackoverflow.com

How do I truncate a java String so that I know it will fit in a given number of bytes storage once it is UTF-8 encoded?

2. Does Java have methods to get the various byte order marks?    stackoverflow.com

I am looking for a utility method or constant in Java that will return me the bytes that correspond to the appropriate byte order mark for an encoding, but I can't ...

3. unknown bytes is returned by method getBytes()    stackoverflow.com



import java.io.UnsupportedEncodingException;
import java.util.Arrays;

public class Main {
 public static void main(String[] args)
 {
  try 
  {
   String s = "s";
   System.out.println( Arrays.toString( s.getBytes("utf8") ) );
  ...

4. Is a character 1 byte or 2 bytes in Java?    stackoverflow.com

I thought characters in java are 16 bits as suggested in java doc. Isn't it the case for strings? I have a code that stores an object into a ...

5. Java's Unicode Byte Ordering    coderanch.com

6. Unicode with byte streams?    coderanch.com

Of course you can. You can read any file whatsoever using a byte stream. However you didn't say what you wanted to do with the data you read. If you just wanted to copy it to somewhere else, then just copying the bytes would be the best approach. But if you wanted to interpret the data as Unicode characters and do ...

7. read/write bytes in unicode    forums.oracle.com

inputText = new File("outputCod.txt"); fin = new FileInputStream(inputText); bufText = null; bufText = new byte [(int)inputText.length()]; fin.read(bufText); fin.close(); text = new String (bufText, "UTF-8"); } At the end i want to have in text the same thing as in encryptionText. But I dont. In encrytionText I have "\u4f45\ueb33\ua4ea\ufcd0\u9e52\u6faf\udcd8\u4aa6" and in text I have "\u4f45\ueb33\ua4ea\ufcd0\u9e52\u6faf?\udcd8\u4aa6". Any idea where that "?" comes from? ...

8. Java Unicode's Byte Ordering    forums.oracle.com

(a) Unicode byte ordering is a non-existent concept (b) DataInputStream and DataOutputStream are big-endian. (c) ByteBuffer and friends can be set to different byte orders (d) There is no other means of access to byte-ordering in Java AFAIK so the question is actually meaningless. Obviously JVMs would use the native byte ordering in practice but there is no way to tell ...