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Get lowest and highest value stored in Java TreeSet example

  1. /*
  2.   Get lowest and highest value stored in Java TreeSet example
  3.   This Java Example shows how to get the lowest and highest value stored in java
  4.   TreeSet object using first and last methods of java TreeSet class.
  5. */
  6.  
  7. import java.util.TreeSet;
  8.  
  9. public class GetLowestHighestValueTreeSetExample {
  10.  
  11.   public static void main(String[] args) {
  12.  
  13.     //create TreeSet object
  14.     TreeSet tSet = new TreeSet();
  15.    
  16.     //add elements to TreeSet
  17.     tSet.add("1");
  18.     tSet.add("3");
  19.     tSet.add("2");
  20.     tSet.add("5");
  21.     tSet.add("4");
  22.    
  23.     /*
  24.       To get the lowest value currently stored in Java TreeSet use,
  25.       Object first() method of TreeSet class.
  26.      
  27.       This method returns the first or lowest value currently stored in the
  28.       TreeSet object.    
  29.     */
  30.    
  31.     System.out.println("Lowest value Stored in Java TreeSet is : " + tSet.first());
  32.    
  33.     /*
  34.       To get the highest value currently stored in Java TreeSet use,
  35.       Object last() method of TreeSet class.
  36.      
  37.       This method returns the last or highest value currently stored in the
  38.       TreeSet object.
  39.     */
  40.    
  41.     System.out.println("Highest value Stored in Java TreeSet is : " + tSet.last());
  42.  
  43.   }
  44. }
  45.  
  46. /*
  47. Output would be
  48. Lowest value Stored in Java TreeSet is : 1
  49. Highest value Stored in Java TreeSet is : 5
  50. */