Can someone help me pls?

Question

Fill in the blanks (…) to calculate the sum of all elements in the array arr using a for-each loop:
int res = 0;
… (int el … arr) {
res += …
}

I can’t find out the answer for the second blank after „int el“
First blank is „for“ last blank is „el“

Answer 1

int r = 0;
for (int n: arr){
r += n;
}
sout(r) // sum of all elements.

Answer 2

Thank you :)

Answer 3

Using Recursion find celestial celebration planner

Answer 4

I Need answer

Answer 5

if you use a recursion so:
static int recSum(int [] array, int start, int acu){
if(start >= array.length){
return acu;
} else {
int r = array[start]
acu += r;
return recSum(array, start + 1, acu);
}
}
sout(recSum(new int [] {1,2,3}, 0, 0)) //sum of all elements.