This method converts the Array to a Delimited separates String
that could be Comma or some other delimitor.

 static public String getDelimitedString(String[] array, String delim) {
        String str = "";
        if (array != null) {
            for (int i = 0; i < array.length; i++) {
                if (!array[i].trim().equals("")
                        && !array[i].trim().equals("-1")) {
                    str += array[i];
                    str += delim;
                }
            }
            // stripping the last comma if one exists.
            if(str.trim().endsWith(",")){
             str = str.substring(0, str.length()-1);
            }
           
        }
        return str;
    }

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