Finding the length of string using iteration in Java

Problem:

Write a java method returns the length of a string using iteration.

Output:

Not applicable.

Solution:

public class string_length_interation
{
  public static int length (String str)
  {
    char c = str.charAt(0);
    int count=0;
    while (c != '\0')
    {
      count++;
      c = str.charAt(count);
    }
    
    return count;
    
  }
  
  
  public static void main(String[] args)
  {
    System.out.println(length("Few"));
  }
}