iTopZ Vote reward

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Collection;
import java.util.HashMap;

public class Main
{
    private int votes;
    private int rank;
    private int wanted_votes;
    private int next_rank;
    private String iTopZ = "https://itopz.com/check/";
    private String Json = "?json=true";
    private String ApiKey;
    private int ServerId;
    private boolean UseJson;

    public void main()
    {
        ApiKey = "elYhDvMxrH-DSeQCXVR2kGyGsKrHB03"; // Config.ITOPZ_API_KEY
        ServerId = 4; // Config.ITOPZ_SERVER_ID
        UseJson = true; // Config.ITOPZ_READ_FORMAT
        getVotes();
        System.out.println("Votes: " + votes);
        System.out.println("Ranking: " + rank);
        System.out.println("Next rank votes needed: " + wanted_votes);
        System.out.println("Next rank will be: " + next_rank);
    }

    private int getVotes()
    {
        String iTopZurl = iTopZ + ApiKey + "/" + ServerId + "/" + (UseJson == true ? Json : null);
        URLConnection con = null;
        try
        {
            con = new URL(iTopZurl).openConnection();
            con.addRequestProperty("User-Agent", "Mozilla/4.76");
            try (BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream())))
            {
                String line;
                while ((line = br.readLine()) != null)
                {
                    if (line.contains("server_votes"))
                    {
                        votes = Integer.valueOf(line.replaceAll("[^\\d]", ""));
                    }
                    if (line.contains("server_rank"))
                    {
                        rank = Integer.valueOf(line.replaceAll("[^\\d]", ""));
                    }
                    if (line.contains("next_rank_votes"))
                    {
                        wanted_votes = Integer.valueOf(line.replaceAll("[^\\d]", ""));
                    }
                    if (line.contains("next_rank"))
                    {
                        next_rank = Integer.valueOf(line.replaceAll("[^\\d]", ""));
                    }
                }
            }
        }
        catch(Exception e)
        {
            System.out.println(e);
            System.out.println("Error while getting iTopZ server info.");
        }
        return -1;
    }
}