Problem in resource loading from a JAR file

Question

My application requires to read a data file using single read operation. The size of the file is 42K. The datafile is packaged inside the jar file with the class files. The piece of code I used is as follows:
InputStream in = Mainclass.class.getResourceAsStream("filename");
DataInputStream din = new DataInputStream(in);
int i = in.available();
System.out.println(i);
byte data[] = new byte[in.available()];
din.readFully(data);
din.close();
But my program reads only one byte not the total file content. I traced and saw that
available() methods retirns 1 instead of 42000.
Can anybody tell me how can I do that?
thanks,
Fazilatur Rahman

Answer 1

Hi,
do the following
InputStream in = Mainclass.class.getResourceAsStream("filename");
DataInputStream din = new DataInputStream(in);
int i = -1;
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte data[] = new byte[1024];
while((i = din.read(data)) != -1)
   bos.write(data, 0, i);
bos.flush();
din.close();
data = bos.toByteArray();