Person.java
package people;

public class Person implements PersonSpecification {
    private String firstName;
    private String lastName;
    private int month;
    private int day;
    private int year;

    public Person(String name, int month, int day, int year) {
        int index = name.indexOf(" ");
        firstName = name.substring(0,index);
        lastName = name.substring(index+1);
        this.month = month;
        this.day = day;
        this.year = year;
    }
    public String toString() {
        String name =  firstName +" "+ lastName;
        String born = "born";
        String birthday = month + "/" + day + "/" + year;
        String person = name + "," + " " + born + " " + birthday;
        return person;
    }

    @Override
    public String firstName() {
        return firstName;
    }

    @Override
    public String lastName() {
        return lastName;
    }

    @Override
    public int month() {
        return month;
    }

    @Override
    public int day() {
        return day;
    }

    @Override
    public int year() {
        return year;
    }

    @Override
    public String initials() {
        return  firstName.substring(0,1) + lastName.substring(0,1);
    }

    @Override
    public boolean isBoomer() {
        return (1946 <= year & year <= 1964);
    }
}