Voting system

public String addVote(String voterID, String vote) {
    StringBuilder builder = new StringBuilder();
    boolean userFound = false;
    int position = -1;
    ArrayList<String> userVotes;
    ArrayList<String> newVotes = new ArrayList<>(Arrays.asList(vote.split(" ")));
    for (int i = 0; i < voting.size(); i++) {
        String[] testVotes = voting.get(i).split(",");
        if (voterID.equals(testVotes[0])) {
            position = i;
            userFound = true;
        }
    }
    if (userFound) {
        userVotes = new ArrayList<>(Arrays.asList(voting.get(position).split(",")));
    } else {
        userVotes = new ArrayList<>();
    }
    if (userVotes.size() == Globals.voteLimit++) {
        return "> You have already used up all of your votes.";
    }
    int x = 0;
    builder.append("> Your votes for entries: \n");
    for (int i = 0; userVotes.size() > i; i++) {
        if (x < Globals.voteLimit) {
            try {
                int entry = Integer.parseInt(newVotes.get(i));
                if (entry > Globals.compEntries) {
                    builder.append("    **Vote Not counted. Reason: Number too high**\n");
                } else {
                    userVotes.add(""+entry);
                    builder.append("    Entry: **" + entry + "**\n");
                    x++;
                }
            } catch (NumberFormatException e) {
                builder.append("    **Vote Not counted. Reason: Not a number**\n");
            }
        }
    }
    if (newVotes.size() > Globals.voteLimit){
        builder.append("    **Rest of Votes not counted: Reason Max votes = " + Globals.voteLimit + "**\n");
    }
    builder.append("    Have been saved.");

    StringBuilder finalVotes = new StringBuilder();
    for (String s : userVotes){
        finalVotes.append(s + ",");
    }
    finalVotes.delete(finalVotes.length()-1,finalVotes.length());
    if (userFound){
        voting.set(position,finalVotes.toString());
    }else {
        voting.add(finalVotes.toString());
    }
    return builder.toString();
}