I am converting a String to byte[] and then again byte[] to String in java using the getbytes()
and String constructor,
String message = "Hello World";
byte[] message1 = message.getbytes();
using PipedInput/OutputStream I send this to another thread, where,
byte[] getit = new byte[1000];
pipedinputstream.read(getit);
print(new String(getit));
This last print result in 1000 to be printed... I want the actual string length. How can i do that?
When reading the String, you need to get the number of bytes read, and give the length to your String:
byte[] getit = new byte[1000];
int readed = pipedinputstream.read(getit);
print(new String(getit, 0, readed));
Note that if your String is longer than 1000 bytes, it will be truncated.
You are ignoring the number of bytes read. Do it as below:
byte[] getit = new byte[1000];
int bytesRead = pipedinputstream.read(getit);
print(new String(getit, 0, bytesRead).length());
public String getText (byte[] arr)
{
StringBuilder sb = new StringBuilder (arr.length);
for (byte b: arr)
if (b != 32)
sb.append ((char) b);
return sb.toString ();
}
not so clean, but should work.
I am converting a String to byte[] and then again byte[] to String
Why? The round trip is guaranteed not to work. String is not a container for binary data. Don't do this. Stop beating your head against the wall: the pain will stop after a while.
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