Creating a Sorted Set in Java

To create a Sorted Set, firstly create a Set.

Set<Integer> s = new HashSet<Integer>();

Add elements to the above set. After that, use TreeSet class to sort.

TreeSet sorted = new TreeSet<Integer>(s);

The following is an example to create a sorted set in Java.

Example

 Live Demo

import java.util.*;
public class Demo {
   public static void main(String args[]) {
      int a[] = {77, 23, 4, 66, 99, 112, 45, 56, 39, 89};
      Set<Integer> s = new HashSet<Integer>();
      try {
         for(int i = 0; i < 5; i++) {
            s.add(a[i]);
         }
         System.out.println(s);
         TreeSet sorted = new TreeSet<Integer>(s);
         System.out.println("Sorted list = ");
         System.out.println(sorted);
      }catch(Exception e) {}
   }
}

Output

[66, 99, 4, 23, 77]
Sorted list =
[4, 23, 66, 77, 99]

Karthikeya Boyini

Published on 30-Jan-2019 10:23:34

• Related Questions & Answers
• Creating a Set using Javascript
• Get the last element from a Sorted Set in Java
• Get the first element from a Sorted Set in Java
• Set AUTO_INCREMENT in a table while creating it in MySQL?
• Creating a Multilevel Inheritance Hierarchy in Java
• Stream sorted() in Java
• Set DEFAULT values for columns while creating a table in MySQL
• Creating a Table in MySQL to set current date as default
• How to use Sorted set interface in Android?
• How a list can be sorted in Java
• IntStream sorted() method in Java
• DoubleStream sorted() method in Java
• LongStream sorted() method in Java
• Search elements in a sorted object array in Java
• Set special characters for password while creating a new MySQL user?