Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.TreeSet;

public class Main {
    public static void main(String[] args) {

        TreeSet<Integer> treeadd = new TreeSet<Integer>();

        System.out.println(treeadd.isEmpty());

        treeadd.add(2);

        System.out.println(treeadd.isEmpty());
    }
}