Java tutorial
package classes; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ /** * * @author USER */ public class Post implements Comparable { public String Judul; public String Owner; public String Konten; public int Status; public Long Tanggal; public int id; public ArrayList<Comment> Komentar; public Post(String j, String o, String c, Long t) { Judul = j; Owner = o; Konten = c; Tanggal = t; } public Post() { Judul = new String("404 POST NOT FOUND"); Owner = new String("System Error"); Konten = new String("" + "The Post you're looking for is <b>NOT</b> found in our database.<br>" + "<br>" + "<br>" + "Do you perhaps follow an expired link?<br>" + "Maybe you input the wrong post id?<br>" + "Either way, this is not the page you are looking for.<br>" + "<h:link outcome=\"index.xhtml\" value=\"Click here to go back to homepage.\"/>"); Status = 0; try { Tanggal = new SimpleDateFormat("dd-MM-yyyy").parse("4-0-4").getTime(); } catch (Exception e) { Tanggal = 0L; } id = -1; Komentar = new ArrayList<Comment>(); } public String getJudul() { return Judul; } public String getOwner() { return Owner; } public String getKonten() { return Konten; } public int getStatus() { return Status; } public Long getTanggal() { return Tanggal; } public int getid() { return id; } public ArrayList<Comment> getKomentar() { return Komentar; } @Override public int compareTo(Object comparestu) { Long compareage = ((Post) comparestu).getTanggal(); /* For Ascending order*/ //return this.Tanggal-compareage; /* For Descending order do like this */ return (int) (compareage - this.Tanggal); } @Override public String toString() { return "[Post ID #" + id + "]"; } public static Post JSONtoPost(String in) throws JSONException { if (in.equals("null")) { return new Post(); } JSONObject obj = new JSONObject(in); Post tp = new Post(); tp.Judul = obj.getString("Judul"); tp.Owner = obj.getString("Owner"); tp.Konten = obj.getString("Konten"); tp.Status = obj.getInt("Status"); tp.Tanggal = obj.getLong("Tanggal"); tp.id = obj.getInt("id"); try { JSONArray obji = (JSONArray) obj.get("Komentar"); for (int i = 0; i < obji.length(); i++) { tp.Komentar.add(Comment.JSONtoComment(obji.getJSONObject(i).toString())); } //tp.Komentar=(ArrayList<Comment>)obj.get("Komentar"); } catch (JSONException ex) { tp.Komentar = new ArrayList<>(); } return tp; } }