Answers for "how to find the sum of an arraylist in java"

sum and array list java

int sum = (list.stream().
        mapToInt(i -> i.intValue()).sum()

Posted by: Guest on June-22-2021

inbuild method to sum of an arraylist elements in java

//If you have a List<Integer>
int sum = list.stream().mapToInt(Integer::intValue).sum();

//If it's an int[]
int sum = IntStream.of(a).sum();

Posted by: Guest on October-21-2020

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