Checking Size: public int size(), public boolean isEmpty() : ArrayList « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. ArrayList

import java.util.Arrays;
import java.util.List;
public class MainClass {
  public static void main(String[] a) {
    List list = Arrays.asList(new String[] { "A", "B", "C", "D" });
    System.out.println(list.size());
    System.out.println(list.isEmpty());
  }
}

4
false