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Get Tail Set from Java TreeSet example

  1. /*
  2.   Get Tail Set from Java TreeSet example
  3.   This Java Example shows how to get the portion of TreeSet containing the values
  4.   grater than  or equal to the specified value using tailSet
  5.   method of Java TreeSet class.
  6. */
  7.  
  8. import java.util.SortedSet;
  9. import java.util.TreeSet;
  10.  
  11. public class GetTailSetFromTreeSetExample {
  12.  
  13.   public static void main(String[] args) {
  14.  
  15.     //create TreeSet object
  16.     TreeSet tSet = new TreeSet();
  17.    
  18.     //add elements to TreeSet
  19.     tSet.add("1");
  20.     tSet.add("3");
  21.     tSet.add("2");
  22.     tSet.add("5");
  23.     tSet.add("4");
  24.  
  25.     /*
  26.       To get a Tail Set from Java TreeSet use,
  27.       SortedSet tailSet(Object fromElement) method of Java TreeSet class.
  28.      
  29.       This method returns the portion of TreeSet containing elements grater
  30.       than or equal to fromElement.
  31.  
  32.       Please note that, the SortedSet returned by this method is backed by
  33.       the original TreeSet. So any changes made to SortedSet will be
  34.       reflected back to original TreeSet.
  35.     */
  36.    
  37.     SortedSet sortedSet = tSet.tailSet("2");
  38.    
  39.     System.out.println("Tail Set Contains : " + sortedSet);
  40.    
  41.   }
  42. }
  43.  
  44. /*
  45. Output would be
  46. Tail Set Contains : [2, 3, 4, 5]
  47. */