Organized output of JSON response in Java using GSON

Today, I decided to attempt at creating an application for myself that would display past and present football fixtures for the current 2015-2016 season using Java.

I currently cannot seem to figure out how to display the JSON properly. The web API endpoint is: http://api.football-data.org/v1/teams/81/fixtures (there is a 50 request limit/day without an API token). I am attempting to use GSON to parse the JSON, but the documentation seems to be going over my head.

Here is the code I have so far:

FCBFixtures.java

import java.io.*;
import java.net.*;
import com.google.gson.*;

public class FCBFixtures {

  private static String getJSON(String url, int timeout) {
    HttpURLConnection c = null;
    try {
      URL u = new URL(url);
      c = (HttpURLConnection) u.openConnection();
      c.setRequestMethod("GET");
      c.setRequestProperty("Content-length", "0");
      c.setRequestProperty("X-Auth-Token", "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
      c.setUseCaches(false);
      c.setAllowUserInteraction(false);
      c.setConnectTimeout(timeout);
      c.setReadTimeout(timeout);
      c.connect();
      int status = c.getResponseCode();

      switch (status) {
        case 200:
        case 201:
          BufferedReader br = new BufferedReader(new InputStreamReader(c.getInputStream()));
          StringBuilder sb = new StringBuilder();
          String line;
          while ((line = br.readLine()) != null) {
            sb.append(line+"\n");
          }
          br.close();
          return sb.toString();
      }

    } catch (IOException ex) {
        System.out.println(ex.getMessage());
        System.exit(1);
    } finally {
      if (c != null) {
        try {
          c.disconnect();
        } catch (Exception ex) {
            System.out.println(ex.getMessage());
            System.exit(1);
        }
      }
    }
    return null;
  }

  public static void main(String[] args) {
      String json = getJSON("http://api.football-data.org/v1/teams/81/fixtures", 500);
      Data data = new Gson().fromJson(json, Data.class);
      System.out.println(data);
  }
}

Data.java

import java.util.List;

public class Data {
    private String date;
    private String status;
    private Integer matchday;
    private String homeTeamName;
    private String awayTeamName;
    private Integer goalsHomeTeam;
    private Integer goalsAwayTeam;
    private List<Data> fixtures;

    public String getDate() { return date; }
    public String getStatus() { return status; }
    public Integer getMatchday() { return matchday; }
    public String getHomeTeamName() { return homeTeamName; }
    public String getAwayTeamName() { return awayTeamName; }
    public Integer getGoalsHomeTeam() { return goalsHomeTeam; }
    public Integer getGoalsAwayTeam() { return goalsAwayTeam; }
    public List<Data> getFixtures() { return fixtures; }

    public void setDate(String date) { this.date = date; }
    public void setStatus(String status) { this.status = status; }
    public void setMatchday(Integer matchday) { this.matchday = matchday; }
    public void setHomeTeamName(String homeTeamName) { this.homeTeamName = homeTeamName; }
    public void setAwayTeamName(String awayTeamName) { this.awayTeamName = awayTeamName; }
    public void setGoalsHomeTeam(Integer goalsHomeTeam) { this.goalsHomeTeam = goalsHomeTeam; }
    public void setGoalsAwayTeam(Integer goalsAwayTeam) { this.goalsAwayTeam = goalsAwayTeam; }
    public void setFixtures(List<Data> fixtures) { this.fixtures = fixtures; }

    public String toString() {
        if (date!=null) { //it's messy, coded it quickly but it works
            String[] split = date.split("T");
            String[] split2 = split[0].split("-");
            date = split2[1]+"/"+split2[2]+"/"+split2[0];
            String[] split3 = split[1].split(":");
            Integer hour = Integer.parseInt(split3[0])-7; //convert to eastern
            date += " "+hour+":"+split3[1];
        }
        String output = String.format("\n Fixtures:%-1s Matchday:%-1d Date:%-18s Home Team:%-25s Away Team:%-25s", fixtures, matchday, date, homeTeamName, awayTeamName);
        return output;
    }
}

I would like it in the end to output each matchday on its own line and each variable being properly spaced. Any help/direction would be very much appreciated. I have not had any experience with GSON before; however, I have used JSOUP before, just as some extra information on my knowledge and the situation.

Also, the cURL request is (without 'X-Auth-Token'): curl -H 'X-Response-Control: minified' -X GET http://api.football-data.org/v1/teams/66/fixtures