how to construct a set in java code example

Example 1: java how to make set

//Creating HashSet 
HashSet<String> set = new HashSet(); 

//adding elements  
set.add("One");    
set.add("Two");    

//Removing element);
set.remove("One"); 

//Removing all the elements available in the set  
set.clear();

Example 2: java set example

import java.util.*;
public class SetDemo {

  public static void main(String args[]) { 
      int count[] = {34, 22,10,60,30,22};
      Set<Integer> set = new HashSet<Integer>();
      try {
         for(int i = 0; i < 5; i++) {
            set.add(count[i]);
         }
         System.out.println(set);

         TreeSet sortedSet = new TreeSet<Integer>(set);
         System.out.println("The sorted list is:");
         System.out.println(sortedSet);

         System.out.println("The First element of the set is: "+ (Integer)sortedSet.first());
         System.out.println("The last element of the set is: "+ (Integer)sortedSet.last());
      }
      catch(Exception e) {}
   }
}