public class Person implements Comparable<Person>{
	private String firstName;
	private String lastName;
	private int age;
	private char gender;
	private String ssn;


// Constructor method (has same name as class but with Captial letter)
// 1st line of constructor initializes the fields of the Person object we are creating
	public Person(String firstName, String lastName, int age, char gender, String ssn){
		this.firstName = firstName;
		this.lastName = lastName;
		this.age = age;
		this.gender = gender;
		this.ssn = ssn;
	}

// Getters and Setters methods
	public String getFirstName(){
		return firstName;
	}

	public void setFirstName(String firstName) {
		this.firstName = firstName;
	}

	public String getLastName(){
		return lastName;
	}

	public void setLastName(String lastName){
		this.lastName = lastName;
	}

	public int getAge(){
		return age;
	}

	public void setAge(int age){
		this.age = age;
	}

	public char getGender(){
		return gender;
	}

	public void setGender(char gender){
		this.gender = gender;
	}

	public String getSsn(){
		return ssn;
	}

	public void setSsn(String ssn){
		this.ssn = ssn;
	}

	public String getFullName(){
		return firstName + " " + lastName;
	}

	public void talk(){
		System.out.println("Hello! My name is: " + firstName + " " + lastName);
	}

	public String toString(){
		return "Person [firstName=" + firstName + ", lastName=" + lastName + ", age=" + age + ", gender=" + gender + ", ssn=" + ssn + "]";
	}

	public int compareTo(Person person) {
		return this.lastName.compareTo(person.getLastName());
	}
}