Please iam getting index out of bound exception can any body solve my probl

Question

Dear all
iam doing aproject in swing in that one class iam using the below method. Iam getting index out of bound exception. Actually iam trying to access the more that 50mb file at that time its giving out of memory exception after that iam using this method now its giving index out of bound exception, when it is going second time in the while loop. can any body solve my problem. Please give me the solution . Ill be very thankful to you.
public Vector getFileContent(File fileObj){
FileInputStream fis = null;
DataInputStream dis = null;
Vector v = new Vector();
byte[] data = null;
int pos = 0;
int chunk = 10000;
int sizePos = 0;
try{
fis = new FileInputStream(fileObj);
int size = (int)fileObj.length();
dis = new DataInputStream(fis);
int k = 1;
if(size <10000){
data = new byte[size];
//v.addElement(dis.readFully(data));
dis.readFully(data);
v.addElement(data);
else {
while(pos < size){
sizePos = size - chunk*k;
if(sizePos > 10000){
chunk = 10000;
else{
chunk = sizePos;
data = new byte[chunk];
dis.read(data, pos, chunk);
v.addElement(data);
System.gc();
pos = pos + chunk + 1;
regards,
surya

Answer 1

pos = pos + chunk + 1;Why the +1??