set in java

In java, set is a collection of Unique values(No duplicates), not ordered, no indexing.
Set implementations are HashSet, LinkedHashSet.

/**
 * @author lautturi.com 
 * Java example: set in java
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		Set<String> set1 = Set.of("Apple", "Banana", "Cherry", "Orange", "Lauttur1");

		Set<String> set2 = new HashSet<>(Arrays.asList("a", "b", "c","d"));
		
		Set<String> set3 = new HashSet<String>();
		set3.add("lautturi");
		set3.add("java");
		set3.add("python");
		set3.add("hello");
		
		System.out.println("Set1: " + set1);
		System.out.println("Set2: " + set2);
		System.out.println("Set3: " + set3);
	}
}

output:

Set1: [Banana, Apple, Orange, Cherry, Lauttur1]
Set2: [a, b, c, d]
Set3: [python, java, lautturi, hello]