Java TreeSet.first()

Syntax

TreeSet.first() has the following syntax.

public E first()

Example

In the following code shows how to use TreeSet.first() method.


/*ww w.ja v  a2  s.c o m*/
import java.util.TreeSet;

public class Main {
   public static void main(String[] args) {
     
     TreeSet <Integer> treeadd = new TreeSet<Integer> ();
     
     treeadd.add(12);
     treeadd.add(11);
     treeadd.add(16);
     treeadd.add(15);
     
     // getting the first lowset element
     System.out.println("First lowest element: "+treeadd.first());   
   }    
}

The code above generates the following result.