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May 23rd, 2019
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Java 1.44 KB | None | 0 0
  1.     public StringIterable copyRaces() {
  2.  
  3.         ArrayList<String> races = new ArrayList<String>();
  4.  
  5.         for(Participation part: this)
  6.         {
  7.             String race =part.getRace();
  8.  
  9.             boolean found = false;
  10.  
  11.             for(int i=0; i < races.size();i++)
  12.             {
  13.                 if(race.equals(races.get(i)) )
  14.                 {
  15.                     found = true;
  16.                     break;
  17.                 }
  18.             }
  19.             if(!found)
  20.                 races.add(race);
  21.         }
  22.  
  23.  
  24.         return new StringIter(races);
  25.     }
  26. -----------------------------------------------------------
  27.  
  28. public class StringIDK implements StringIterator {
  29.  
  30.     public int index = 0;
  31.     public ArrayList<String> list;
  32.  
  33.  
  34.     public StringIDK(ArrayList<String> list)
  35.     {
  36.         this.list = list;
  37.     }
  38.  
  39.     @Override
  40.     public String next()
  41.     {
  42.         if(hasNext())
  43.         {
  44.             return list.get(index++);
  45.         }
  46.  
  47.         throw new NoSuchElementException();
  48.     }
  49.  
  50.     @Override
  51.     public boolean hasNext()
  52.     {
  53.         return index < list.size();
  54.     }
  55. }
  56.  
  57. ---------------------------------------
  58.  
  59.  
  60. public class StringIter implements StringIterable {
  61.  
  62.     ArrayList<String> list;
  63.     public StringIter(ArrayList<String> list)
  64.     {
  65.         this.list = list;
  66.     }
  67.     @Override
  68.     public StringIterator iterator()
  69.     {
  70.         return new StringIDK(list);
  71.     }
  72. }
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