Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Iterator;
import java.util.TreeSet;

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

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

        treeadd.add(12);
        treeadd.add(13);
        treeadd.add(14);
        treeadd.add(15);

        Iterator<Integer> iterator = treeadd.iterator();

        while (iterator.hasNext()) {
            System.out.println(iterator.next());
        }

        treeadd.clear();
        System.out.println(treeadd.size());
    }
}