HashSet: isEmpty() : HashSet « java.util « Java by API

1. Java by API
2. java.util
3. HashSet

HashSet: isEmpty()

 

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" };
    Set<String> set = new HashSet<String>(Arrays.asList(elements));

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

   
  

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