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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. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main(String[] args) {
  11.  
  12. 		List<String> firstList = new ArrayList<String>();
  13. 		firstList.add("");
  14.  
  15. 		List<String> secondList = new ArrayList<String>();
  16. 		secondList.add("OP1004");
  17.  
  18. 		List<String> thirdList = new ArrayList<String>();
  19. 		thirdList.add("OP1003");
  20.  
  21. 		List<String> fourthList = new ArrayList<String>();
  22. 		fourthList.add("OP1006");
  23. 		fourthList.add("OP1044");
  24. 		fourthList.add("OP1046");
  25.  
  26. 		List<String> fifthList = new ArrayList<String>();
  27. 		fifthList.add("OP1008");
  28. 		fifthList.add("OP1009");
  29. 		fifthList.add("OP1044");
  30. 		fifthList.add("OP1005");
  31. 		fifthList.add("OP1004");
  32.  
  33. 		Map<String, List<String>> map = new LinkedHashMap<String, List<String>>();
  34. 		map.put("OP1004", firstList);
  35. 		map.put("OP1006", secondList);
  36. 		map.put("OP1005", thirdList);
  37. 		map.put("OP1009", fourthList);
  38. 		map.put("OP1016", fifthList);
  39.  
  40. 		for (Map.Entry<String, List<String>> keyAndValue: map.entrySet()) {
  41. 			String key = keyAndValue.getKey();
  42. 			List<String> values = keyAndValue.getValue();
  43.  
  44. 			if (values.isEmpty() || (values.size() < 2))
  45. 				continue;
  46.  
  47. 			for (Map.Entry<String, List<String>> mapKeyAndValue: map.entrySet()) {
  48.  
  49. 				String key1 = mapKeyAndValue.getKey();
  50. 				if (key.equals(key1))
  51. 					continue;
  52.  
  53. 				List<String> values2 = mapKeyAndValue.getValue();
  54. 				if (values2.isEmpty() || (values2.size() < 2))
  55. 					continue;
  56.  
  57. 				values2.removeAll(values);
  58. 			}
  59. 		}
  60.  
  61. 		for (Map.Entry<String, List<String>> keyAndValue: map.entrySet()) {
  62. 			System.out.println("Key is " + keyAndValue.getKey() + " Value are " + keyAndValue.getValue());
  63. 		}
  64. 	}
  65. }
Success #stdin #stdout 0.05s 711168KB
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Standard input is empty
stdout
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Key is OP1004 Value are []
Key is OP1006 Value are [OP1004]
Key is OP1005 Value are [OP1003]
Key is OP1009 Value are [OP1006, OP1044, OP1046]
Key is OP1016 Value are [OP1008, OP1009, OP1005, OP1004]
https://ideone.com/lnsgSC
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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