The first() method of java.util.TreeSet class will return the first (lowest) element currently in this set whereas last() method will return the last (highest) element currently in this set.
Signature
public E last()
This method returns the last(highest) element currently in this set
Example
The following example shows the usage of java.util.TreeSet.last() method.
import java.util.TreeSet; public class LastMethodTreeSetExample { public static void main(String args[]) { // create an empty TreeSet TreeSet treeSet1 = new TreeSet(); // use add() method to add elements to the TreeSet treeSet1.add("Element1"); treeSet1.add("Element2"); treeSet1.add("Element3"); treeSet1.add("Element4"); treeSet1.add("Element5"); //get the last element of the treeset System.out.println("Last element of the treeset is : "+treeSet1.last()); } }
Output
Last element of the treeset is : Element5
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