Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

public class Main {

    public static void main(String[] a) {
        String elements[] = { "A", "B", "C", "D", "E" };
        HashSet<String> set = new HashSet<String>(Arrays.asList(elements));

        System.out.println(set.size());
    }
}