ArrayList<Byte> aba = new ArrayList<Byte>();
int n;
int counter = 0;
try{
URL url = new URL(".....");
InputStrean is = url.openStream();
while ((n = is.read()) != -1){
++counter;
aba.add(byte)n);
}
}
catch (Excption e){
...
}
// use ArrayList aba for subsequent task