Person.java

public class Person {
    private String name;

    public Person(String name) {
        this.name = name;
    }

    public String getName() {
       return this.name;
    }

    public String toString() {
        return this.getName();
    }

    public boolean equals(Object o) {
        if (!(o instanceof Person)) {
            return false;
        }
       return ((Person)o).name.equals(this.name);
    }
}