Assignment3

import java.util.Scanner;
class Publication{
 protected String title;
 protected double price;
 protected int copies;
public Publication(String title,double price,int copies){
 this.title=title;
 this.price=price;
 this.copies=copies;
}
public double salecopy(int noOfCopies){
 this.copies -=noOfCopies;
 return noOfCopies*price;
}
public void display(){
 System.out.println("Title:"+title);
 System.out.println("Price:"+price);
 System.out.println("Copies:"+copies);
}
}
class Book extends Publication{
 private String author;
public Book(String title,double price,int copies,String author){
 super(title,price,copies);
 this.author=author;
}
public void orderCopies(int noOfCopies){
 this.copies +=noOfCopies;
}
public void display(){
 super.display();
 System.out.println("Author:"+author);
 }
}
class Magzine extends Publication{
 private String currentIssue;
 public Magzine(String title,double price,int copies, String currentIssue){
 super(title,price,copies);
 this.currentIssue=currentIssue;
 }
 public void orderQty(int quantity){
 this.copies +=quantity;
 }
 public void receivedIssue(String newIssue){
 this.currentIssue=newIssue;
 }
 public void display(){
 System.out.println("Current Issue:"+ currentIssue);
 }
}
public class PublicationTest{
 public static void main(String[]args){
 Book b=new Book("OOP WITH JAVA",44.99,100,"JAMES");
 Magzine m=new Magzine("TECHNOLOGY",5.99,500,"AUG 2024");
 b.orderCopies(50);
 b.display();
 
 double booksale= b.salecopy(10);
 System.out.println("Total Book Sale:"+booksale);
 m.receivedIssue("SEPT 2024");
 m.display();
 
 double magsale=m.salecopy(100);
 System.out.println("Total Magzine Sale:"+magsale);
 
 double totalsale= booksale+magsale ;
 System.out.println("Total Publication Sale:"+totalsale);
 }
}