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  1. import java.util.Collections;
  2. import java.util.Comparator;
  3. import java.util.Iterator;
  4. import java.util.LinkedList;
  5. import java.util.TreeSet;
  6.  
  7.  
  8. public class Main {
  9.  
  10.  
  11.     public static void main(String[] args) {
  12.  
  13.  
  14.         Allegro allegro = new Allegro();
  15.  
  16.         allegro.add(new Monitor("Dell", 65, 5000));
  17.         allegro.add(new Monitor("Apple", 9.5, 6000));
  18.         allegro.add(new Monitor("Dell", 2.5, 100));
  19.         allegro.add(new Monitor("Samsung", 5.5, 4000));
  20.         allegro.add(new Monitor("Dell", 1.5, 3000));
  21.         allegro.add(new Monitor("Intel", 0.5, 2000));
  22.  
  23.  
  24.          System.out.println("Cenami\n");
  25.  
  26.          allegro.Cenami();
  27.          System.out.println("------------------------------------\n");
  28.  
  29.  
  30.          System.out.println("Rozdzielczosciami:\n");
  31.          allegro.Rozdz();
  32.   }
  33.  
  34. }
  35.  
  36.  
  37.  
  38. /* implements Comparable<Monitor>*/
  39. class Monitor implements Comparable<Monitor>
  40. {
  41.     private String firma;
  42.     private double resolution;
  43.     private double cena;
  44.  
  45.     public Monitor() {
  46.         this.firma = "nieznana";
  47.         this.resolution = 0.0;
  48.         this.cena = 0;
  49.     }
  50.  
  51.     public Monitor(String firma, double resolution, double cena) {
  52.         this.firma = firma;
  53.         this.resolution = resolution;
  54.         this.cena = cena;
  55.     }
  56.  
  57.     String getFirma() {
  58.         return this.firma;
  59.     }
  60.  
  61.     double getCena() {
  62.         return this.cena;
  63.     }
  64.  
  65.     double getResolution() {
  66.         return this.resolution;
  67.     }
  68.  
  69.     void Show() {
  70.         System.out.println("Monitor: " + this.firma + " Rozdzielczosc: " + this.resolution + " Cena: " + this.cena);
  71.     }
  72.  
  73.  
  74.     @Override
  75.     public int compareTo(Monitor o) {
  76.  
  77.      if(this.cena>o.cena)
  78.      {
  79.          return 1;
  80.      }
  81.  
  82.           else if(this.cena<o.cena)
  83.      {
  84.          return -1;
  85.      }
  86.         else
  87.      {
  88.                        if(this.resolution>o.resolution)
  89.                        {
  90.                            return 1;
  91.                        }
  92.  
  93.                        else if(this.resolution<o.resolution)
  94.                        {
  95.                            return -1;
  96.                        }
  97.                        else
  98.                        {
  99.                            return 0;
  100.                        }
  101.      }
  102.     }
  103.     }
  104.  
  105.  
  106.  
  107.  
  108. class Allegro {
  109.    // LinkedList<Monitor> list;
  110.     Iterator<Monitor> iterator;
  111.     TreeSet<Monitor> treeset;
  112.  
  113.     public Allegro() {
  114.         this.treeset = new TreeSet<>();
  115.     }
  116.  
  117.     void add(Monitor monitor) {
  118.         this.treeset.add(monitor);
  119.     }
  120.  
  121.  
  122.     void Cenami() {
  123.         iterator = treeset.iterator();
  124.         while (iterator.hasNext()) {
  125.             iterator.next().Show();
  126.         }
  127.  
  128.     }
  129.  
  130.     void Rozdz() {
  131.  
  132.  
  133.         //Collections.sort(lista);
  134.  
  135.  
  136.         class Rozdzielczosciami implements Comparator<Monitor> {
  137.  
  138.             @Override
  139.             public int compare(Monitor o1, Monitor o2) {
  140.             if (o1.getResolution() > o2.getResolution())
  141.             {
  142.                 return 1;
  143.             }
  144.             else if (o1.getResolution() < o2.getResolution())
  145.             {
  146.                 return -1;
  147.             }
  148.             else
  149.             {
  150.                 return 0;
  151.             }
  152.  
  153.         }
  154.  
  155.  
  156.         }
  157.           iterator = treeset.iterator();
  158.         while (iterator.hasNext()) {
  159.             iterator.next().Show();
  160.         }
  161.  
  162.     }
  163.  
  164. }
Success #stdin #stdout 0.1s 320512KB
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Standard input is empty
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Cenami

Monitor: Dell Rozdzielczosc: 2.5 Cena: 100.0
Monitor: Intel Rozdzielczosc: 0.5 Cena: 2000.0
Monitor: Dell Rozdzielczosc: 1.5 Cena: 3000.0
Monitor: Samsung Rozdzielczosc: 5.5 Cena: 4000.0
Monitor: Dell Rozdzielczosc: 65.0 Cena: 5000.0
Monitor: Apple Rozdzielczosc: 9.5 Cena: 6000.0
------------------------------------

Rozdzielczosciami:

Monitor: Dell Rozdzielczosc: 2.5 Cena: 100.0
Monitor: Intel Rozdzielczosc: 0.5 Cena: 2000.0
Monitor: Dell Rozdzielczosc: 1.5 Cena: 3000.0
Monitor: Samsung Rozdzielczosc: 5.5 Cena: 4000.0
Monitor: Dell Rozdzielczosc: 65.0 Cena: 5000.0
Monitor: Apple Rozdzielczosc: 9.5 Cena: 6000.0
https://ideone.com/2RpHUG
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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