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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. class Publication {
  8.  
  9.         private String title;
  10.         private String publisher;
  11.         private int year;
  12.         private String ident;
  13.         private double price;
  14.         private int quantity;
  15.  
  16.         public Publication (String t, String pb, int y,String i, double pr, int q) {
  17.  
  18.         title = t;
  19.         publisher = pb;
  20.         year = y;
  21.         ident = i;
  22.         price = pr;
  23.         quantity = q;
  24.         }
  25.  
  26.         public String getTitle() { 
  27.             return title;
  28.         }
  29.  
  30.         public String getPublisher() {
  31.             return publisher;
  32.         }
  33.  
  34.         public int getYear() {
  35.             return year;
  36.         }
  37.  
  38.         public String getIdent() {
  39.             return ident;
  40.         }
  41.  
  42.         public double getPrice() {
  43.             return price;
  44.         }
  45.  
  46.         public void setPrice(double pr) {
  47.             price = pr;
  48.         }
  49.  
  50.         public int getQuantity() {
  51.             return quantity;
  52.         }
  53.  
  54.         public void buy(int n) {
  55.             quantity += n;
  56.         }
  57.  
  58.         public void sell(int n) {
  59.             quantity -= n;
  60.         }
  61.  
  62. }
  63.  
  64. class Ideone
  65. {
  66. 	public static void main (String[] args) throws java.lang.Exception
  67. 	{
  68.        Publication b = new Publication ("Psy", "Dog&Sons", 2002, "ISBN6789", 21.0, 0);
  69.  
  70.         int n = 10;
  71.         b.buy(n);
  72.  
  73.         double koszt = n * b.getPrice();
  74.  
  75.         System.out.println("Na zakup " + n + " publikacji:");
  76.         System.out.println(b.getTitle());
  77.         System.out.println(b.getPublisher());
  78.         System.out.println(b.getYear());
  79.         System.out.println(b.getIdent());
  80.         System.out.println("---------------\nwydano: " + koszt);
  81.  
  82.         b.sell(4);
  83.         System.out.println("Po sprzedaży zostało" + b.getQuantity() + " pozycji");
  84. 	}
  85. }
Success #stdin #stdout 0.1s 320576KB
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Na zakup 10 publikacji:
Psy
Dog&Sons
2002
ISBN6789
---------------
wydano: 210.0
Po sprzedaży zostało6 pozycji
https://ideone.com/lg3Mgh
language:
Java (12.0.1)
created:
8 years ago
visibility:
public

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