Reading an array of byte with special delimiter....help me!!

Question

Hi guys,
i've developed a java application that has in input a txt file with a standard format
string string string
string double double
string double double
and stores it into an array of byte with a fixed format,
that is byte(whitespace)byte(whitespace)byte(;)byte(whitespace)byte(whitespace)byte(;)byte(whitespace)byte(whitespace)byte(;)
that mean introducing byte whitespace value and byte ; value to separate different columns and different rows.
Now i have to develop inverse routine,that has to read the array of byte and rebuild its original format.
Can you help me with some idea ord code?
I'm inexepert...please help me with clear suggest...
I post you my routine that converts txt file into an array of byte
P.S.In my txt file number of columns and rows change for each file,what is standard is a firtst headline that is an array of string and others row with the same format string array of doubles....
public byte[] getBytes(){
          byte middlerow=' ';
          byte endrow=';';
          Vector temp=new Vector(10000000);
          int i=0;     
          String g=null;
          Riga r;
          Double val[];
          while(i<intest.length){
               //copio tutto nell'array di byte
               byte []bytes = intest.getBytes();
//               memorizza in byte un elemento del vettore alla volta
               for( Byte aByte : bytes ) {
               temp.addElement( aByte );
               temp.addElement( Byte.valueOf( middlerow ) );
               i++;
          temp.addElement(Byte.valueOf(endrow));
          System.out.println("Intestazione convertita in byte");
          for(int l=0;l<rows.size()-1;l++){
               r=(Riga)rows.get(l);
               g=r.getgeneid();
          temp.addElement(g.getBytes());
          temp.addElement(Byte.valueOf(middlerow));
          val=r.getvalues();
          for(int e=0;e<=val.length-1;e++){
          temp.addElement(Byte.valueOf(val[e].byteValue()));
          //val[e].byteValue() fa il casting double in byte
          temp.addElement(Byte.valueOf(middlerow));
     temp.addElement(Byte.valueOf(endrow));
          byte [] b=new byte[temp.size()];
          for (int k=0;i<temp.size();i++){
               b[k]=(((Byte)temp.elementAt(k)).byteValue());
          return b;
Thanks for your help...

Answer 1

Ahh, how is the "array of bytes" being populated, Java code?
If so which encoding are you using? When you create the bytes (from a string at a guess) the other end which encoding do you use?
If you are using a db, why not use a db? Why this blob of data?
If I really was banned from using the DB as a DB, and HAD (on pain of death) to use this wonky blob thing, I would do:
Writing:
ByteArrayOutputStream daos = new ByteArrayOutputStream() ;
DataOutputStream dos = new DataOutputStream( daos );
dos.writeUTF( "me String" );
dos.writeDouble( 4.2 );
dos.close;
byte[] stickInUglyBlob = daos.toByteArray() ;
Reading:
DataInputStream dis = new DataInputStream( new ByteInputStream( blobOfUckyness ) );
String meString = dis.readUTF();
double meDouble = dis.readDouble();