Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Collections;
import java.util.HashSet;

public class Main {
    public static void main(String[] args) {
        HashSet<Long> hashSet = new HashSet<Long>();

        hashSet.add(new Long("9"));
        hashSet.add(new Long("4"));
        hashSet.add(new Long("2"));
        hashSet.add(new Long("2"));
        hashSet.add(new Long("3"));

        Object obj = Collections.min(hashSet);
        System.out.println("Minimum Element of HashSet is : " + obj);
    }
}