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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		ProductCategoryMap pcMap = new ProductCategoryMap();
  10.  
  11. 		pcMap.put("Electronic", "ph", 144);
  12. 		pcMap.put("Electronic", "jp", 120);
  13.  
  14. 		List<String> availability = pcMap.getAvailability("Electronic");
  15. 		System.out.println("category Electronic is available in the following countries: "+String.join(", ",availability));
  16.  
  17. 		int catId_ph = pcMap.getCategoryId("Electronic", "ph");
  18. 		System.out.println("['Electronic', 'ph'] -> "+catId_ph);
  19.  
  20. 		int catId_jp = pcMap.getDestCatId("ph", "jp", catId_ph);
  21. 		System.out.println("['ph', '"+catId_jp+"'] -> "+catId_jp);
  22. 	}
  23. }
  24.  
  25. class ProductCategoryMap
  26. {
  27.     Map<String,List<String>> prodMap;
  28.     Map<String,String> codeMap;
  29.     Map<String,Integer> catMap;
  30.  
  31.     public ProductCategoryMap()
  32.     {
  33.         prodMap = new HashMap<>();
  34.         codeMap = new HashMap<>();
  35.         catMap = new HashMap<>();
  36.     }
  37.  
  38.     public void put(String category, String region, int code)
  39.     {
  40.         if(!prodMap.containsKey(category))
  41.         {
  42.             prodMap.put(category, new ArrayList<>());
  43.         }
  44.         prodMap.get(category).add(region);
  45.  
  46.         catMap.put(category+region, code);
  47.         codeMap.put(region+code, category);
  48.     }
  49.  
  50.     public String getCategory(String country, int catId)
  51.     {
  52.         return codeMap.get(country+catId);
  53.     }
  54.  
  55.     public int getCategoryId(String category, String country)
  56.     {
  57.     	return catMap.get(category+country);
  58.     }
  59.  
  60.     public int getDestCatId(String srcCountry, String destCountry, int srcCatId)
  61.     {
  62.         String category = getCategory(srcCountry, srcCatId);
  63.         return getCategoryId(category, destCountry);
  64.     }
  65.  
  66.     public List<String> getAvailability(String category)
  67.     {
  68.         return prodMap.get(category);
  69.     }
  70. }
  71.  
  72.  
Success #stdin #stdout 0.04s 4386816KB
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category Electronic is available in the following countries: ph, jp
['Electronic', 'ph'] -> 144
['ph', '120'] -> 120
https://ideone.com/wuT758
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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