Question

Java Eclipse Coding question:

Use data abstraction (real-world modeling) to come up with 3 instance variables and 2 effectors for a new data type – the class HospitalPatient. You have the freedom to design the instance variables and effectors.

instance variables effectors

1. 1.

2. 2.

3.

Write the code for class HospitalPatient, according to the requirement above. Include the default constructors with no argument, and the constructor with all arguments. Provide a getter and setter for each individual instance variable. Provide the two effectors that you design above. All instance data are private and all methods are public. Observe the coding conventions, including proper indent. No user input is needed.

Write the code for an application class that has a main method, and in the main method, creates two instances of class HospitalPatient, one with default constructor and one with the other constructor. Then as use to input necessary variables, and then use the setters to set the input variables into the object that you created with default constructor. Then call the effectors of the HospitalPatient and prints out some information about the patients. You can name the class JohnDoeTest, where JohnDoe should be replaced with your name. Observe coding conventions, including proper indent. You can use Scanner class here to get input parameters from user, in order to initialize the object created by the default constructor (the constructor that has no parameter). Only in this application class, you need to obtain user input.

Answer 1

public class HospitalPatient {

   //variables

   private String name;

   private int age;

   private String disease;

  

   /**

   * @param name

   * @param age

   * @param disease

   */

   public HospitalPatient(String name, int age, String disease) {

       super();

       this.name = name;

       this.age = age;

       this.disease = disease;

   }

   /**

   * Default Constructor

   */

   public HospitalPatient() {

       super();

      

   }

   /**

   * @return the name

   */

   public String getName() {

       return name;

   }

   /**

   * @param name the name to set

   */

   public void setName(String name) {

       this.name = name;

   }

   /**

   * @return the age

   */

   public int getAge() {

       return age;

   }

   /**

   * @param age the age to set

   */

   public void setAge(int age) {

       this.age = age;

   }

   /**

   * @return the disease

   */

   public String getDisease() {

       return disease;

   }

   /**

   * @param disease the disease to set

   */

   public void setDisease(String disease) {

       this.disease = disease;

   }

  

   //effectors

   //give detail of patient

   public String patientDetail(){

       return "Patient Name: " + name + "\nPatient age: "+ age + "\n Patient Disease: " + disease;

   }

  

   //Change patient Condition:If patient is well then provide null value means no disease

   public void changePatientCondition(){

       this.disease = null;

   }

  

}

import java.util.Scanner;

//Refactor class name with your name

public class ShubhamTest {

  

   public static void main(String[] args) {

       HospitalPatient patient1 = new HospitalPatient();

       HospitalPatient patient2 = new HospitalPatient("John", 33, "Fever");

       Scanner sc = new Scanner(System.in);

       System.out.println("Enter The patient name");

       String name = sc.next();

       patient1.setName(name);

       System.out.println("Enter The patient Age");

       int age = sc.nextInt();

       patient1.setAge(age);

       System.out.println("Enter The patient Disease");

       String disease = sc.next();  

       patient1.setDisease(disease);

       System.out.println(patient1.patientDetail());

       System.out.println(patient2.patientDetail());

       //when patient is well

       patient1.changePatientCondition();

       patient2.changePatientCondition();

       System.out.println(patient1.patientDetail());

       System.out.println(patient2.patientDetail());

      

      

   }

}

Sample Output:

Enter The patient name

test

Enter The patient Age

12

Enter The patient Disease

cough

Patient Name: test

Patient age: 12

Patient Disease: cough

Patient Name: John

Patient age: 33

Patient Disease: Fever

Patient Name: test

Patient age: 12

Patient Disease: null

Patient Name: John

Patient age: 33

Patient Disease: null