Chapter 12.3, Problem 17SCP

Explanation of Solution

Error in the given code:

• The method that is provided is used to compute the sum of digits.
• The bug that leads to infinite recursion is that there is a problem with base case if statement.
• There is a bug with the if statement that is the test case for the number should be less than 10 but it is mentioned as greater than 10.

Modified code:

//Adds the digits of the given number .

//Example : digitSum(3456) returns 3+4+5+6 = 18

public static int digitSum(int n)

{

  if (n < 10)

  ...