Person.java

class Person { private static int count = 0; private String firstName; private String middleName; private String lastName; private int age; private double height; private double weight; // Add the instance field "job" private String job;

// Rewrite the constructor Person(String firstName, String lastName, int age, double height, double weight,String job) { Person.count++; this.firstName = firstName; this.lastName = lastName; this.age = age; this.height = height; this.weight = weight; this.job = job; }

// Rewrite the constructor Person(String firstName, String middleName, String lastName, int age, double height, double weight,String job) { this(firstName, lastName, age, height, weight,job); this.middleName = middleName; }

public String getMiddleName() { return this.middleName; }

// Define a job getter public String getJob(){ return this.job; }

public void setMiddleName(String middleName) { this.middleName = middleName; }

// define a job setter public void setJob(String job){ this.job = job; }

public String fullName() { if (this.middleName == null) { return this.firstName + " " + this.lastName; } else { return this.firstName + " " + this.middleName + " " + this.lastName; } }

public void printData() { System.out.println ("My name is" + this.fullName () + ""); System.out.println ("Age" + this.age + "Age"); System.out.println ("BMI is" + Math.round (this.bmi ()) + ""); // Please output "Job is ◯◯" System.out.println ("Job is" + this.job + ");

}

public double bmi() { return this.weight / this.height / this.height; }