FizzBuzz #1

Premise: 
As an assignment for ICS 413, I timed myself in writing a simple FizzBuzz Program.  I suspect this will become a recurring assignment that will be used as a metric of our progress in the course.

Requirements:
A method that returns a FizzBuzz String. 

A FizzBuzz String can be defined as: a String where the numbers 1 through j are printed out according to the following conditions:

• One number per line.
• The multiples of 3 replaced by "Fizz".
• The multiples of 5 replaced by "Buzz".
• The multiples of both 3 and 5 replaced by "FizzBuzz".

Time:
3m 13s

Code:

public class FizzBuzz {
  public static void main(String[] Args){
    System.out.print(fizzBuzz(100));
  }

  public static String fizzBuzz(int j){
    String s="";
    Boolean b=false;
    for(int i =1;i<=j;i++){
       b=false;
       if(i%3==0){
        s+="Fizz";
        b=true;
       }
       if(i%5==0){
          s+="Buzz";
          b=true;
       }
       if(!b){
          s+=i;
       }
       s+="\n";
    }
    return s;
  }

Approach:
My approach to the problem was to iterate through the numbers 1 to j, checking for multiples of 3 or 5, and appending the correct output. My implementation removes the need to check for multiples of both 3 and 5 as both conditions will trigger (appending "Buzz" to "Fizz") before the new line character is appended.

Conclusions:
This exercise illustrates how even a simple FizzBuzz program can speak volumes about a programmer. One's attention to detail, eye for optimization, and thought process can be dissected out of a few dozen lines of code. 

 I believe I spent about a third of my time simply planning out how to solve the problem, and trying to minimize the number of checks in the program.  Despite this, I suspect there is still room for optimization in finding a way to determine whether or not the number should be printed. I implemented a Boolean variable to keep track of whether or not to print the number, but this added another check statement.  I will investigate this further in the next FizzBuzz post.