JAVA CODE FOR FILTER STREAM-INVENTORY OF BOOKSHOP

PROGRAM:

import java.io.*;

class Inventory

{

            public static void main(String a[])throws IOException

            {

System.out.println("BOOK DETAILS");

System.out.println("BOOK ID"+"\t\t"+"BOOK NAME"+"\t\t"+"AUTHOR"+"\t\t"+"PRICE");

System.out.println("1"+"\t\t"+"JAVA N\W"+"\t\t"+"Elliotte"+"\t\t"+"135.00"+ "\n"+

                        "2"+"\t\t"+"J2ME"+"\t\t"+"Topley"+"\t\t"+"250.50"+"\n"+

                        "3"+"\t\t"+"J2EE"+"\t\t"+"Hunt"+"\t\t"+"247.50"+"\n"+

                        "4"+"\t\t"+"Java bean"+"\t\t"+"EdRoman"+"\t\t"+"196.75");

                        DataInputStream d=new DataInputStream(System.in);

System.out.println("Enter the id,quantity");

                        int id=Integer.parseInt(d.readLine());

                        int qty=Integer.parseInt(d.readLine());

                        switch(id)

{

case 1:

System.out.println("You have selected JAVA NETWORKING");

                                                double price=qty*135.00;

                                                System.out.println("You have to pay Rs. "+price);

                                                break;

case 2:

                                                System.out.println("You have selected J2ME");

                                                double price=qty*250.50;

                                                System.out.println("You have to pay Rs. "+price);

                                                break;

case 3:

                                                System.out.println("You have selected J2EE");

                                                double price=qty*247.50;

                                                System.out.println("You have to pay Rs. "+price);

                                                break;

case 4:

                                                System.out.println("You have selected JAVA BEANS");

                                                double price=qty*196.75;

                                                System.out.println("You have to pay Rs. "+price);

                                                break;

default:

                                                System.out.println("You have entered wrong id.");

                                                exit(0);

}

FileOutputStream fos=new FileOutputStream("invent.txt");

DataOutputStream dos=new DataOutputStream(fos);

}

}

OUTPUT:

BOOK DETAILS::

BOOK ID        BOOK NAME                        AUTHOR                    PRICE

1                      JAVA NETWORKING           Elliotte              135.00

2                      J2ME                                       Topley                          250.50

3                      J2EE                                        Hunt                             247.50

4                      Java bean                                 EdRoman                     196.75

Enter the ID,Quantity::

3

2

You have Selected J2EE Book

You have to Pay Rs.495.00