It all depends how you're populating the array.

Usually you'd do something like this:

Code:

int[] rawSeq = new int[rawSeqLength];

for (int i=0; i<rawSeqLength; i++){
  rawSeq[i] = getNumber(i);
}

//now re-initialize the array

rawSeq = new int[newRawSeqLength];

for (int i=0; i<newRawSeqLength]; i++){
  rawSeq[i] = getNewNumber(i);
}

 

It sounds like you're using a method that adds on to the end of the array.  In that case, just writing

rawSeq = new int[0];

should do the trick for you (note no int[] declaration is needed, as the rawSeq array variable is already declared).

If not, maybe try to post the code so we can see what's going on.