I am trying to find the largest values of these three variables (aCounter, bCounter, cCounter) that has been calculated. Java does not like how I am putting them into the string. 
Thanks in advance guys!

```
   double aCounter=0;
   double bCounter=0;
   double cCounter=0;

         { code to count occurrences of each character in text file }

   String lines = aCounter + bCounter + cCounter;
    String [] array = lines.split (" "); //splits with a space
    int largestInt = Integer.MIN_VALUE;
    for (String numberString : array )
    {
        int number = Integer.parseInt(numberString);
        if (number > largestInt)
        {
            largestInt = number;
        }
    }
bw.write ( largestInt );

```