Assignment for Web Software Developer position, Java

Assignment for Web Software Developer position

//'main' method must be in a class 'Rextester'.
//Compiler version 1.8.0_111

import java.util.*;
import java.lang.*;

class Rextester
{  
    public static void main(String args[])
    {
        // set variable for starting number to evaluate
        int num = 1;
        
            // cycle through numbers 1 to 100
            while (num < 101) 
            {
                // convert number to string
                String in = Integer.toString(num);
                
                // initialize output string
                String out = "";
                
                // loop through each character in number string  
                for (int i = 0; i < in.length(); i++) 
                  {
                    // evaluate each digit in number string
                    char digit = in.charAt(i);
                      
                    // if digit is a 3 add Fizz to out string
                    if (digit == '3')
                        out += "Fizz";
                      
                    // if digit is a 5 add Buzz to out string
                    else if (digit == '5')
                        out += "Buzz";
                        
                    // if digit is neither 3 or 5 add digit to out string
                    else 
                        out += digit;
                  }
                
                // increment to next number
                num ++;
                
        // print out string to line
        System.out.println(out);
       }
    }
}


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