Find Sum of Map Items in List of Map

I have List<Map<String,Integer>>

Where each items in list consist of items of Map, something like below (just for representation)

List[0].Map[0]("Sam",10)
        Map[1]("Sarah",12)
        Map[2]("Remi", 18)

List[1].Map[0]("Darren",13)
        Map[1]("Peter",19)
        Map[2]("Larry", 21)

Is there a way to check total sum of map greater than 50 and get the index of the list.

Output : 1 , as items in Map on List[1] exceeds 50

I can get what I needed in with multiple for loops but is there a better approach ?

>Solution :

Yes, you can use the Stream API to achieve this:

int index = IntStream.range(0, list.size())
                     .filter(i -> list.get(i).values().stream().mapToInt(Integer::intValue).sum() > 50)
                     .findFirst()
                     .orElse(-1);