import java.util.ArrayList;

public class ArrayList1 {

    public static void main(String[] args) {

	ArrayList vals = new ArrayList(4);

	vals.add(new Person("A"));
	vals.add(new Person("B"));
	vals.add(new Person("C"));

	for (int i=0; i < vals.size() ; i++)
	    System.out.println(vals.get(i));
    }
}

class Person {
    public String name;
    public Person friend;
    public Person(String name) {this.name=name;}
    public String toString() {return name;}
}