Source of 7.12.java

Structures and functions

  1: /** @param n  An integer > 0.
  2:     @return  The sum 1 + 2 + ... + n. */
  3: public static int sumOf(int n)
  4: {
  5:    int sum;
  6:    if (n == 1)
  7:       sum = 1;                // Base case
  8:    else
  9:       sum = sumOf(n - 1) + n; // Recursive call
 10:     
 11:    return sum;
 12: } // end sumOf
 13: // Version 4.0