IT. Expert System.

The first() method is used to return the first (lowest) element currently in this set.

Syntax:

public E first()

Example:

import java.util.TreeSet;

public class TreeSetDemo {
   public static void main(String[] args) {
     // creating a TreeSet 
     TreeSet treeadd = new TreeSet();
     
     // adding in the tree set
     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());   
   }    
}

All information of this service is derived from the free sources and is provided solely in the form of quotations. This service provides information and interfaces solely for the familiarization (not ownership) and under the "as is" condition.