Please help in Java using Inheritence: Write a TitledPerson class, which you der

Question

Please help in Java using Inheritence:

Write a TitledPerson class, which you derive from the Person class. The TitledPerson class has one additional String instance variable for a title such as Ms., Mr., or Dr. It has two constructors, a default constructor and one that sets both the name and title. It has a writeOutput method, a reset method, an equals method, an accessor method getTitle that returns the title, and a mutator method setTitle that changes the person’s title. For two titled people to be equal they must have the same name and the same title.

Person.java:

public class Person {
private String name;
public Person(){
name=" ";
}
public Person (String initialName){
name=initialName;
}

//refactor-encapsulate field getSetter
public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}
public void WriteOutput() {
System.out.println("Name: "+name);
}
public boolean hasSameName(Person other){
return this.name.equalsIgnoreCase(other.name);
//if (this.hasSameName(other))
}
}

2. Create a Sphere class that is derived from your Circle class. Add a method called volume (the volume of a sphere is 4/3 * pi*r*r*r) .

In your main method create two Spheres, print out their circumferences and volumes and then output the larger of the two (you must use compareTo).

double r1 = keyboard.nextDouble();

double r2= keyboard.nextDouble();

Sphere Sphere( r1);

Sphere two = new Sphere(r2);

SYstem.out.println(one.circumference());

System.out.println(one.volume());

//repeat for two

if(r1.compareTo(r2)>0)..

Explanation / Answer

1)

//Person.java

public class Person {
  
  
   //Attributes
   String name;
  
   //Setters and Getters
   public String getName() {
       return name;
   }

   public void setName(String name) {
       this.name = name;
   }
  
   public void WriteOutput(){
       System.out.println(this.name);
   }
  
   // Boolean method
   public boolean hasSamePerson(Person p1,Person p2){
       if(p1.getName().equals(p2.getName()))
           return true;
       else
           return false;

   }
  
}

//TitlePerson.java

import java.util.Scanner;

public class TitlePerson extends Person{

   //Instance Variables
   String title;
   String name;
  
   //Constructors
   public TitlePerson(){
      
   }
   public TitlePerson(String name){
       this.name=name;
   }
   public TitlePerson(String name,String title){
       this.name=name;
       this.title=title;
   }
  
   //Setters and Getters
   public String getName() {
       return name;
   }

   public void setName(String name) {
       this.name = name;
   }

   public String getTitle() {
       return title;
   }

   public void setTitle(String title) {
       this.title = title;
   }
  
   public static void main(String args[]){
      
       Scanner s = new Scanner(System.in);
       //Reading Title and Name
       System.out.println("Enter Title1 and Name1:");
       TitlePerson tp1 = new TitlePerson(s.next(),s.next());
       System.out.println("Enter Title2 and Name2:");
       TitlePerson tp2 = new TitlePerson(s.next(), s.next());
  
       //Comparing Person1 and Person2
       //Calling hasSamePerson of Person Type
       boolean nb = tp1.hasSamePerson(tp1, tp2);
       boolean tb = tp1.getTitle().equals(tp2.getTitle());
      
       //If both are equal then
       if(nb && tb){
           System.out.println("Equal title and Name");
       }else
           System.out.println("Unequal");
   }
}

Output:

Enter Title1 and Name1:
Mr Jack
Enter Title2 and Name2:
Mr Jack
Equal title and Name

Enter Title1 and Name1:
Mr James
Enter Title2 and Name2:
Ms James
Unequal

2)
//Circle.java

public class Circle {
  
   double radius;
  
   //Constructor
   public Circle(double radius){
       this.radius = radius;
   }
   //Calculate Volume
   public double getVolume(){
       //(4/3)*(22/7)*r*r*r
       double volume = (4.188)*radius*radius*radius;
       return volume;
   }
   //Calculate Circumference
   public double circumference(){
       //2*(22/7)*r
       double circum = 6.28*radius;
       return circum;
   }
}

//Sphere.java

import java.util.Scanner;

public class Sphere extends Circle{
   //Calling super class Constructor
   public Sphere(double radius){
       super(radius);
   }
   public static void main(String args[]){
       //Reading radius
       Scanner s = new Scanner(System.in);
       System.out.println("Enter Radius:1");
       double r1 = s.nextDouble();
       //Creating sphere
       Sphere sp1 = new Sphere(r1);
       //Calling volume ang circumference methods
       double vol1 = sp1.getVolume();
       double cir1 = sp1.circumference();
       System.out.println("Enter Radius:2");
       double r2 = s.nextDouble();
       Sphere sp2 = new Sphere(r2);
       double vol2 = sp2.getVolume();
       double cir2 = sp2.circumference();
      
       System.out.println("Sphere1:"+" "+"Volume:"+vol1+" "+"Circumference:"+cir1);
       System.out.println("Sphere2:"+" "+"Volume:"+vol2+" "+"Circumference:"+cir2);
      
       //Comparing radius of spheres
       if(r1>r2){
           System.out.println("Sphere1 is largest");
       }else{
           System.out.println("Sphere2 is largest");
       }
      
   }
}

Output

Enter Radius:1
2.5
Enter Radius:2
3.5
Sphere1: Volume:65.4375 Circumference:15.700000000000001
Sphere2: Volume:179.5605 Circumference:21.98
Sphere2 is largest

Enter Radius:1
4.5
Enter Radius:2
2.7
Sphere1: Volume:381.6315 Circumference:28.26
Sphere2: Volume:82.43240400000002 Circumference:16.956000000000003
Sphere1 is largest

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