Define a function named summation. This function expects two numbers, named low and high, as arguments. The function computes and returns the sum of the numbers between low and high, inclusive.

public static int summation (int low, int high) {

int sum = 0;

for (int i=low; i<=high; i++) {

sum + = i;

}

return sum;

}

Explanation:

- Initialize sum variable to hold the sum

- Inside the for loop which iterates from low to high, calculate the sum of the numbers between low and high

Then:

- Return the sum