How to convert string with Java 8 lambda to 7?

Question

Java

Have Function

private void addAllOrderedStocksToList(List<Integer> list) {
        Iterator<Integer> amountIterator = data.getNumberOfOrderedStacks().iterator();
        Iterator<Integer> lengthIterator = data.getOrderedStackLengths().iterator();
       while (amountIterator.hasNext()) {
          int amount = amountIterator.next();
          int length = lengthIterator.next();
           IntStream.range(0, amount).forEach(x -> list.add(length));   
       }
}

The problem I'm having is on this line. I don't understand what she's doing at all.
IntStream.range(0, amount).forEach(x -> list.add(length));
Can someone help me convert it to Java 7.

Answer 1

Java 7 doesn't have Stream API. Rewrite the for loop from zero to amount, and in the body of the loop add the length value to the list list.