Testing the LinkedHashSet Class in Java

Problem:

Write a java problem that tests the LinkedHashSet class.

Output:

[IT, VA, SM, CH]
[IT, SM, CH]
[IT, SM, CH, VA]

Solution:

public class TestLinkedHashSet {
public static void main(String[] args) {
Set<String> ital = new LinkedHashSet<String>();
Collections.addAll(ital, "IT", "VA", "SM", "CH");
System.out.println(ital);
ital.remove("VA");
System.out.println(ital);
ital.add("VA");
System.out.println(ital);
}
}