Question

Define a class named FruitJuice with the following description: 

Instance variables/Data members:
int product_code: stores the product code number.
String flavour: stores the flavour of the juice (e.g., orange, apple, etc.)
String pack_type: stores the type of packaging (e.g., tera-pack, PET bottle, etc.)
int pack_size: stores package size (e.g., 200 mL, 400 mL, etc.)
int product_price: stores the price of the product
Member Methods:

1. FruitJuice(): constructor to initialize integer data members to 0 and string data members to " ".
2. void input(): to input and store the product code, flavour, pack type, pack size and product price.
3. void discount(): to reduce the product price by 10.
4. void display(): to display the product code, flavour, pack type, pack size and product price.

Answer 1

import java.util.*;
public class FruitJuice{
int product_code,pack_size, product_price;
String flavor, pack_type;

public FruitJuice()
{product_code = 0;
flavor = "";
pack_type = "";
pack_size = 0;
product_price = 0;
}

void input()
{Scanner sn = new Scanner(System.in);
System.out.println("***Input***");
System.out.print("product code:");
product_code = sn.nextInt();
System.out.print("flavour: ");
flavor = sn.next();
sn.nextLine(); // to avoid nextLine() input errors
System.out.print("pack type: ");
pack_type = sn.nextLine();
System.out.print("pack size ml: ");
pack_size = sn.nextInt(); )
System.out.print("prod. price: ");
product_price = sn.nextInt();
}
void discount()
{ product_price = product_price - 10;
}

void display()
{System.out.println("**\nOutput**"); 
System.out.println("Product code: " + product_code);
System.out.println("Flavour is " + flavor);
System.out.println("Pack Type: " + pack_type);
System.out.println("Pack size(ml): " + pack_size);
System.out.println("Prod. Price: " + product_price);
}

public static void main(String args[])
{FruitJuice fj = new FruitJuice();
fj.input();
fj.discount();
fj.display();
}}