find sum in vector java code example
Example 1: how to add up all numbers in an array
var numbers = [10, 20, 30, 40]
var sum = 0;
for (var i = 0; i < numbers.length; i++) { sum += numbers[i]}
Example 2: how to add up all numbers in an array
const numbers = [10, 20, 30, 40]
add = (a, b) => a + b
const sum = numbers.reduce(add)