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May 25th, 2018
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  1. import java.util.ArrayList;
  2. import java.util.Arrays;
  3. import java.util.Collection;
  4. import java.util.HashMap;
  5. import java.util.HashSet;
  6. import java.util.List;
  7. import java.util.Map;
  8. import java.util.Set;
  9.  
  10. public class FindAccountExistForDay {
  11.  
  12. public String userStart;
  13. public String accountId;
  14. public String genre;
  15.  
  16. public static void main(String args[]){
  17.  
  18. Set<String> accounts= new HashSet<String>();
  19. accounts.add("1");
  20. accounts.add("2");
  21. accounts.add("3");
  22. accounts.add("4");
  23. accounts.add("5");
  24. accounts.add("6");
  25.  
  26. Set<String> dates= new HashSet<String>();
  27. dates.add("05032018");
  28. dates.add("05042018");
  29. dates.add("05052018");
  30. dates.add("05062018");
  31. dates.add("05072018");
  32. dates.add("05082018");
  33. dates.add("05092018");
  34.  
  35.  
  36.  
  37. List<String[]> dataList= new ArrayList<String[]>();
  38. String[] strings = {"05032018", "1", "John"};
  39. String[] strings2 = {"05042018", "1", "John"};
  40. String[] strings3 = {"05062018", "3", "David"};
  41. String[] strings4 = {"05072018", "4", "Gilbert"};
  42. String[] strings5 = {"05082018", "5", "Mark"};
  43. String[] strings6 = {"05092018", "6", "Neil"};
  44. String[] strings7 = {"05032018", "2", "Dan"};
  45.  
  46. dataList.add( strings);
  47. dataList.add( strings2);
  48. dataList.add( strings3);
  49. dataList.add( strings4);
  50. dataList.add( strings5);
  51. dataList.add( strings6);
  52. dataList.add( strings7);
  53.  
  54.  
  55.  
  56. for (String date: dates){
  57. Set<Object> groupSet= new HashSet<Object>();
  58. for (String acct: accounts){
  59. while(dataList.iterator().hasNext()){
  60. //do the logic here?
  61. }
  62. }
  63. System.out.println("date:"+ date +":"+ groupSet);
  64. }
  65. }
  66.  
  67. }
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