E
first()
Returns
the lowest element currently in this set.
import java.util.*; class TreeSetFirst{ public static void main(String args[]){ TreeSet<Integer> mySet = new TreeSet<> (); /* Add Elements to mySet */ for(int i=20; i>0; i-=2) mySet.add(i); System.out.println("Elements in mySet are"); System.out.println(mySet); System.out.println("\nLowest Element in the Set is"); System.out.println(mySet.first()); } }
Output
Elements in mySet are [2, 4, 6, 8, 10, 12, 14, 16, 18, 20] Lowest Element in the Set is 2
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