default treeset java code example

Example 1: TreeSet size() method in java

import java.util.TreeSet;
public class TreeSetSizeMethodExample
{
   public static void main(String[] args)
   {
      TreeSet ts = new TreeSet();
      ts.add("watermelon");
      ts.add("apple");
      ts.add("banana");
      ts.add("grapes");
      ts.add("mango");
      ts.add("orange");
      System.out.println("Given TreeSet: " + ts);
      // print size of TreeSet
      System.out.println("size of TreeSet is: " + ts.size());
   }
}

Example 2: treeset

TreeSet: Can contain only unique values and it is sorted in ascending order
TreeMap: Can contain only unique keys and keys are sorted in ascending order.