Code Sample-BBKnapsack

//Code Sample. This code does not compile or run.
if (cur.pos != -1) {
        i = cur.pos;
        curBest.remove(curBest.size() - 1);
        total =  cur.curWgt - items[i].weight;
        totVal = cur.curVal - items[i].value;

        if (i != items.length - 1) {
          if(!fractional(total, totVal, i + 1, items, weight, bestVal)) {
            cuts++;
            continue;
          }

          else {
            curWgt = cur.curWgt - items[cur.pos].weight;
            curVal = cur.curVal - items[cur.pos].value;
            i = cur.pos + 1;