int lastRollSum = 0;
int currentRoll = 0;
int count = 0;

while (lastRollSum != 2 && currentRoll != 2) {
  int die1 = (int) (Math.random() * 6) + 1, die2 = (int) (Math.random() * 6) + 1;
  System.out.println ("You rolled " + die1 + " & " + die2 + ", last roll sum:" + lastRollSum);
  lastRollSum = currentRoll;
  currentRoll = die1 + die2;
  count++;
}

System.out.println("It took " + count + " tries.");