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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.  
  8. class Product
  9. {
  10. }
  11.  
  12. class Mobile extends Product
  13. {
  14. }
  15.  
  16. class Market
  17. {
  18.     public void buy(Product product)
  19.     {
  20.         System.out.println("Search a product in market");
  21.     }
  22.  
  23.     public void buy(Mobile mobile)
  24.     {
  25.         System.out.println("Search a mobile in market");
  26.     }
  27. }
  28.  
  29. class Shop extends Market
  30. {
  31.  
  32.     public void buy(Product product)
  33.     {
  34.         System.out.println("Search a product in shop");
  35.     }
  36.  
  37.     public void buy(Mobile mobile)
  38.     {
  39.         System.out.println("Search a mobile in shop.");
  40.     }
  41. }
  42.  
  43. /* Name of the class has to be "Main" only if the class is public. */
  44. class Ideone
  45. {
  46. 	public static void main (String[] args) throws java.lang.Exception
  47. 	{
  48. 		System.out.println("Initial example");
  49. 		Market market = new Market();
  50. 		Market shop = new Shop();
  51.  
  52. 		market.buy(new Product());
  53. 		shop.buy(new Mobile());
  54.             	Product p1 = new Product(); 
  55. 		Product p2 = new Mobile();    
  56.  
  57.    		System.out.println("New example");
  58. 		shop.buy(p1);
  59. 		shop.buy(p2);
  60. 		p1 = p2;
  61. 		shop.buy(p1);
  62.  
  63. 	}
  64. }
Success #stdin #stdout 0.06s 4386816KB
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Standard input is empty
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Initial example
Search a product in market
Search a mobile in shop.
New example
Search a product in shop
Search a product in shop
Search a product in shop
https://ideone.com/tdcHKY
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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