sum of all array elements java code example
Example 1: sum of all numbers in array java
int[] a = {10,20,30,40,50};
int sum = IntStream.of(a).sum();
System.out.println("The sum is " + sum);
Example 2: java running sum of array
class Solution {
public int[] runningSum(int[] nums) {
int[] sol = new int[nums.length];
sol[0] = nums[0];
for(int i = 1; i < nums.length; i++) {
sol[i] = sol[i-1] + nums[i];
}
return sol;
}
}
// Example: runningSum([1,3,6,9]) = [1, 4, 10, 19] = [1, 1+3, 1+3+6, 1+3+6+9]