LinkedHashSet in Java is a collection that combines the properties of HashSet and LinkedList. It maintains a doubly linked list to preserve the insertion order of elements while ensuring that duplicate values are not allowed. This makes LinkedHashSet a great choice when you need a set that maintains order while also providing fast access and insertion times.
// Example of using LinkedHashSet in Java
import java.util.LinkedHashSet;
public class LinkedHashSetExample {
public static void main(String[] args) {
LinkedHashSet linkedHashSet = new LinkedHashSet<>();
// Adding elements
linkedHashSet.add("Apple");
linkedHashSet.add("Banana");
linkedHashSet.add("Cherry");
linkedHashSet.add("Apple"); // Duplicate, will not be added
// Displaying elements
for (String fruit : linkedHashSet) {
System.out.println(fruit);
}
}
}
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