Person.java

package org.example;

public class Person {
    private String firstName;
    private String lastName;
    private int userAge;

    public Person(String firstName, String lastName, int userAge) {
        this.firstName = firstName;
        this.lastName=lastName;
        this.userAge=userAge;
    }
    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 userAge;}
    public void setAge(int age) {this.userAge = userAge;}

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