Java Documentation (Manisha Bhattarai

8/8/2019 Java Documentation (Manisha Bhattarai

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C1054 Java Programming

Proposal letter

Date: 6th June 2009

To,

The Managing Director,

Dherai-Mitho Khane Kura,

Baneshwor, Kathmandu, Nepal

Sub: to develop a digital order system for your restaurant

Sir/madam,

With reference to the advertisement published in the date 4 th June 2009 in the newspaper, I

would like to design a digital billing system for your restaurant. I have been designing

software for about two years and so I am quite experienced in this field and I am very

confident regarding developing a digital billing system for your restaurant.

As per your requirement published in the newspaper, my qualification and experience in

this field is sufficient to develop a simple console mode digital order system. If you would

like to learn more about my qualifications and experience, I have attached other

documents and certificate with this document.

It will be my pleasure to develop a program for your restaurant. I will be waiting for your

response.

Yours Sincerely,

Manisha Bhattarai

Submitted by: Manisha Bhattarai (1801T1090085)


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Acceptance letter

Date: 10th June 2009

To,

Miss Manisha Bhattarai,

Ward no. 10,

Baneshwor, Kathmandu, Nepal

Dear, manisha,

This letter has been written to you to inform you that you have been

selected to design a digital order system for our restaurant. I went through your proposal

letter and your qualifications and experience and i am sure that you will fit perfect for this

job.

I also went through your basic designing concept and to learn and discuss more about it I

would like to call you for a meeting on the 12 th of July at our restaurant. To prove your

identity, you should also bring the photocopy of the papers you sent to our restaurant on

the 6th of July.

Me as well as other members of the restaurant will be very pleased to see you and work

with you.

With warm regards,

Hemani Shakya

Dherai Mitho Khane Kura Reataurant,



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Technical proposal

Proposed project

name:

Digital food order system

Date of proposal: 6th June 2009

Software

requirement:

Java Development Kit 1.6 and above

Command Prompt

Hardware

requirement:

Pentium - 2 plus

RAM - 128 plus

Processor - 800MHz plus

Hard Disk - 80 GB plus

This project is developed for the Dherai Mitho Khane Kura

restaurant to keep digital record of the bills of the food consumed

by the customers that used to be done in the form of a paper. This

project is mainly developed to eliminate the risk of loss and

damage of bills.

Approved

Date of approval: 10th June 2009

Approved by: Hemani Shakya

Acknowledgement



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Creating this program was a very nice and useful experience for me as I not only built my

skills regarding programming but also got a chance to widen to knowledge in this field.

Building this project would be impossible without the help of our instructor Mr. Manoj

Manandhar. So, first of all I would like to give a heartfelt thank to him.

Without the help and co-operation of my friends, I would not have been able to solve my

problems related to programming in the absence of my instructor. So I would also thank

my friends for helping me in the time of need.

Last but not the least, the co-operation and help of the friendly staffs and the environment

provided by the Informatics College also helped me in building my project to this level.

So, thank you to the entire staffs and to the informatics college.

Introduction and program objective



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Introduction

I am about to develop a software for Dherai Mitho Khane Kura Restaurant. It is located at

Baneshwor, Kathmandu, Nepal was established about a year ago and has and has been

serving certain variety of food items to the customers visiting the restaurant since then.

Currently, the restaurant has seven employees at the restaurant which includes two cook,

manager, waiters and other employees. Currently this restaurant can serve about only 20

customers a day. The restaurant has been thinking about implementing some kind of new

technology within the organization that would help to improve the standard of the

organization as well as make it easy for the employees within the restaurant.

Current system and Problem Background



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Dherai Mitho Khane Kura Restaurant currently has about seven employees including the

manager, waiters and so on. It has been only a year since the restaurant has been

established so the number of customers visiting the restaurant is in average rate. Currently,

the order from the customers is taken by getting one of the waiters into the customers

table. The customers can pay the bill to the restaurant after they consume the food and this

is in the form of a paper. The billing of the food consumed by the customers is maintained

in a paper.

Due to the above mentioned current system, various problems is being faced by the

restaurant. Even though the number of customers visiting the restaurant are in average

rate, due to the lack of waiters at the restaurant the customers sometimes do not get their

order at time. Other major problem the restaurant is facing is due to the billing method.

The record of the bills is maintained in the form of a paper which makes its very

vulnerable to loss and even getting torn out. Sometimes there has also been some kind of

mistake by the waiters due to which the customers were not satisfied by our service and

things like this give a very false impression to the customers. Other problems that the

restaurant is facing due to the current system is that Sometimes customers do not pay for

their food items so there is always insecurity regarding payment of the food consumed by

the customer. Along with all these problems, the restaurant also faces a lot of problem

when the data has to be retrieved from the old records which are very time consuming.

Purposed system and objectives:



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To reduce the problems being faced by the restaurant, I introduced software that performs

certain function that will help to eliminate the problems being faced by the restaurant. My

program will use an electronic device i.e. a computer instead of the traditional billing

system where papers were used to keep the record of the bills of the customers. In the

purposed system, the customers have to get to the computer where an employee is present

to get the order of the food and that is before having the food to reduce the insecurity

regarding payment of the food consumed by the customer. In the purposed system, the

records of the bills are maintained in a log file instead of the papers so that the risk of the

papers getting lost and torn out is reduced. The implementation of purposed system will

also help to make the order service more managed and quick.

The major objectives of the purposed system are:

1. To save the time of the customers as well as employees since the order is taken

directly from the computer by the customers.

2. To make it easier for the employees to use and maintain the record.

3. To ensure that the record of the food items consumed is maintained digitally with

the help of the log file.

4. To reduce the loss of bills that used to be stored in the form of paper previously.

5. To introduce modern technique of billing at the restaurant and to encourage others

in implementing this as well.

Program Design



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Flowchart



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Press Enter

Display menu

Enter choice

Is itan

empt

y

inputs?

Is itgreat

er

than

13?

Is it

an

alph

abet?

Yes Yes Yes

No NoNo

Display

Availability

Error Message isDisplayed


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Press Enter

Display menu

Enter choice

Is it

an

empty

input

s?

Is it

great

erthan

13?

Is it

analph

abet?

Yes Yes Yes

No No

No

Enter food

name



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Enter food price

Is itan

empt

yinput

?


Is itan

empt

y

input

?

Cho

iceto

haveanythingelse

Is itgreat

er

than

40?

Is ita

char

acte

r?

Yes

YesYes Yes

No

No

No No No



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Enter food price

Enter food name

Is it

an

empt

y

input

?


Is it

an

empt

y

input

?

Error Message is

Displayed

Enter name

Is it

an

empt

yinput

?

Error Message is

Displayed

Is it

a

char

acter

?

Is it

great

er

than

40?

Yes

Yes

Yes Yes Yes

Yes

No

No NoNo

No

Error Message is

Displayed


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Insertion of food name,

price and user name to

the file.

Display bill

Press enter to keep

record on log file

Enter food price

Enter food

name

Is it

an

empt

y

input? Error Message isDisplayed

Is it

great

erthan

40? Error Message isDisplayed


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Enter food name

Is it

analph

abet?

Is it

an

empty

input

?

Yes

YesYes Yes

No No No

No



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Enter food price

Is it

an

empt

y

input

?


Is it

great

erthan

40?


Enter name

Is it

anempt

y

input

?

Error Message is

Displayed

Data is appended to atext file

Is it

an

empty

input

Is it

an

alph

abet?

YesYesYes

Yes

No

No NoNo

YesError Message is

Displayed


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Input Screen Design


End

Do

you

wishto

view

log

file?

Log file isviewed

Command Prompt java orderServiceee X

Press Enter to check out the menu!

---------------------------------------------

Welcome to our restaurant!

Yes

No


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Enter the choice: 99

Type the number present on the right hand side of the food


YOUR CHOICE OF FOOD IS AVAILABLE!

--------------------------------------------------------

Enter the food name: AAAA


Enter the food Price: 99


Please enter the choice: 9


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Do you wish to have anything else?If yes press 1 otherwise press 0




Enter the food Price: 99Command Prompt java orderServiceee X

Please enter your name: AAAA


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Enter the food name:AAAA

Please enter the data for log file


Enter the food Price: 99


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Please enter the choice: 9

Do you wish to have anything else?

If yes press 1 otherwise press 0




Enter the food Price: 99Command Prompt java orderServiceee X

Please enter your name: AAAA


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Output Screen Design



Enter the choice:

If you wish to view log file press rIf you do not wish to view log file press anything


Menu


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----------------------------------------------------------------------

| YOU ENTERED AN EMPTY VALUE |

| |

| TRY AGAIN! |----------------------------------------------------------------------


----------------------------------------------------------------------

| THE VALUE YOU ENTERED IS NOT NUMERIC! |

| |

| TRY AGAIN! |----------------------------------------------------------------------


----------------------------------------------------------------------

| THE CHOICE YOU ENTERED IS INVALID! |

| |

| TRY AGAIN! |----------------------------------------------------------------------


Bill


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LOG FILES

--------------

Bill


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Program Listing

File name : orderServiceee.java

import java.io.DataInputStream;import java.io.DataOutputStream;

import java.io.File;


Bill


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import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.InputStream;import java.io.OutputStream;

import java.util.ArrayList;

import java.util.List;import java.io.*;

import java.util.*;

public class orderServiceee

{

public orderServiceee()

{

try

{

File record=new File("text-file//text.txt");

OutputStream os=new FileOutputStream(record);DataOutputStream ds=new DataOutputStream(os);

ds.writeBytes("1__Momo__25__7__Momo__30");

ds.writeBytes("\r\n");

ds.writeBytes("2__Samosa__25__8__----__--");ds.writeBytes("\r\n");

ds.writeBytes("3__Rice__30__9__Rice__30__");

ds.writeBytes("\r\n");ds.writeBytes("4__Chawmin__30__10__----__--");

ds.writeBytes("\r\n");

ds.writeBytes("5__Pakaura__25__11__----__--");ds.writeBytes("\r\n");

ds.writeBytes("6__----__--__12__Meat__40");

ds.flush();ds.close();

InputStream is=new FileInputStream(record);

DataInputStream dis=new DataInputStream(is);String s="";

List list=new ArrayList();

while((s=dis.readLine())!=null)

{

list.add(s);}

System.out.println("\r\n");



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System.out.println("\t"+"\t"+"################################################

#");

System.out.println("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#");System.out.println("\t"+"\t"+"#"+"\t"+" Welcome to our Resturant!"+"\t"+"\t"+"#");

System.out.println("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#");

System.out.println("\t"+"\t"+"#################################################");

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));System.out.println("\r\n");

System.out.println("\t"+"\t"+"\t"+"Press Enter to check out the menu!");

System.out.println("\t"+"\t"+"\t"+"----------------------------------");

String checkOut=br.readLine();


System.out.println("\t"+"No."+"\t"+"Veg"+"\t"+"\t"+"Price"+"\t"+"No."+"\t"+"Non-

Veg"+"\t"+"\t"+"Price");System.out.println("\t"+"-----------------------------"+"\t"+"-----------------------------");

for(int i=0; i


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public static void main(String args[])

{

orderServiceee OS=new orderServiceee();

getNum gN=new getNum();

gN.getNumm();

enterName EN=new enterName();

List recod=EN.EnterName();String EN1=recod.get(0).toString();

String EN2=recod.get(1).toString();

int i=EN.Enter_choice();

EN.EnterNamee(EN1,EN2,i);

log_file MP=new log_file();

MP.log_info();

List record=MP.EnterNamem();String rd=record.get(0).toString();

String rd1=record.get(1).toString();int j=MP.get_choice();

MP.EnterNameem(rd,rd1,j);

Read_txtFile R_tF=new Read_txtFile();}

}

File name : getNum.java

import java.io.DataInputStream;

import java.io.DataOutputStream;import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;import java.io.InputStream;



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import java.io.OutputStream;

import java.util.ArrayList;

import java.util.List;import java.io.*;

import java.util.*;

public class getNum

{

public void getNumm(){

try

{

String available="YOUR CHOICE OF FOOD IS AVAILABLE!";

String underline="---------------------------------";

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter your choice:");String cc=br.readLine();

while(cc.trim().length()12){


System.out.println("\t"+"\t"+" -----------------------------------------------");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");

System.out.println("\t"+"\t"+"|"+"\t"+"THE CHOICE YOU ENTERED IS

INVALID!"+"\t"+"|");

System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");



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System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"TRY AGAIN!"+"\t"+"\t"+"\t"+"|");


System.out.println("\t"+"\t"+" -----------------------------------------------");System.out.println("\r\n");

System.out.print("\r\n"+"\t"+"\t"+"\t"+"Re-enter your choce:");

cc=br.readLine();c=Integer.parseInt(cc);

}

switch(c)

{

case 1:{


System.out.println("\r\n"+"\t"+"\t"+"\t"+available);

System.out.println("\t"+"\t"+"\t"+underline);System.out.println("\r\n");

}break;

case 2:

{System.out.println("\r\n");



}

break;

case 3:



System.out.println("\t"+"\t"+"\t"+underline);

System.out.println("\r\n");}

break;

case 4:{


System.out.println("\r\n"+"\t"+"\t"+"\t"+available);System.out.println("\t"+"\t"+"\t"+underline);


}

break;



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case 5:




}

break;

case 7:

{

System.out.println("\r\n");System.out.println("\r\n"+"\t"+"\t"+"\t"+"Sorry this item is Unavailable");



getNumm();}

break;

case 9:

{

System.out.println("\r\n");System.out.println("\r\n"+"\t"+"\t"+"\t"+available);


System.out.println("\r\n");}

break;

case 12:

{

System.out.println("\r\n");System.out.println("\r\n"+"\t"+"\t"+"\t"+available);



}break;

}

}

catch(Exception e)


System.out.println("\t"+"\t"+" -------------------------------------------------");

System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");



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System.out.println("\t"+"\t"+"|"+"\t"+"THE VALUE YOU ENTERED IS NOT

NUMERIC!"+"\t"+" |");

System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"TRY AGAIN!"+"\t"+"\t"+" |");


System.out.println("\t"+"\t"+" -------------------------------------------------");System.out.println("\r\n");

getNumm();

}}

}

File name : enterName.java

Import java.io.DataInputStream;import java.io.DataOutputStream;


import java.io.FileInputStream;import java.io.FileOutputStream;



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import java.io.InputStream;


import java.util.ArrayList;import java.util.List;

import java.io.*;

import java.util.*;

public class enterName

{public List EnterName()

{

try{


System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter the food name:"+" ");

String nameInput=br.readLine();

while(nameInput.trim().length()


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System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"TRY AGAIN!"+"\t"+"\t"+" |");

System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");System.out.println("\t"+"\t"+" -------------------------------------------------");


System.out.print("\r\n"+"\t"+"\t"+"\t"+"Re-Enter the food Price:"+" ");priceInput=br.readLine();

}

int priceInputt=Integer.parseInt(priceInput);

if(priceInputt>40)

{

System.out.println("\r\n");System.out.println("\t"+"\t"+" -----------------------------------------------");



INVALID!"+"\t"+"|");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");

System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"TRY AGAIN!"+"\t"+"\t"+"\t"+"|");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");

System.out.println("\t"+"\t"+" -----------------------------------------------");


System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter the food Price:"+" ");priceInput=br.readLine();

priceInputt=Integer.parseInt(priceInput);

}

System.out.println("\r\n"+"\r\n");

List list =new ArrayList();list.add(nameInputt);

list.add(priceInputt);

for(int i=0; i


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return list;

}

catch(Exception e)



System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");System.out.println("\t"+"\t"+"|"+"\t"+"THE VALUE YOU ENTERED IS NOT

NUMERIC!"+"\t"+" |");


System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"TRY AGAIN!"+"\t"+"\t"+" |");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");



return EnterName();}

}

public int Enter_choice()

{

try{


System.out.println("\r\n");System.out.print("\t"+"\t"+"\t"+"Please enter the choice:"+" ");

String ii=br.readLine();

while(ii.trim().length()


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if(ss>1)

{

System.out.println("\r\n");System.out.println("\t"+"\t"+" -----------------------------------------------");


System.out.println("\t"+"\t"+"|"+"\t"+"THE CHOICE YOU ENTERED ISINVALID!"+"\t"+"|");


System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"TRY AGAIN!"+"\t"+"\t"+"\t"+"|");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");



System.out.print("\r\n"+"\t"+"\t"+"\t"+"Please Re=enter the value:"+" ");ii=br.readLine();

ss=Integer.parseInt(ii);

}

return ss;}

catch(Exception e)

{


System.out.println("\t"+"\t"+" -------------------------------------------------");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");


NUMERIC!"+"\t"+" |");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");




return Enter_choice();}

}

public void EnterNamee(String neww, String neww1,int jj){

try

{BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

switch(jj){

case 0:

{




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System.out.print("\t"+"\t"+"\t"+"Please enter your name:"+" ");

String name_one=br.readLine();

while(name_one.trim().length()


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dos_two.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_two.writeBytes("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_two.writeBytes("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_two.writeBytes("\t"+"\t"+"#"+"\t"+"ENJOY YOUR FOOD

"+name_two+"!"+"\t"+"\t\t"+"#");

dos_two.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_two.writeBytes("\t"+"\t"+"###############################################

##");

dos_two.flush();dos_two.close();

InputStream is_two=new FileInputStream(file_two);

DataInputStream dis_two=new DataInputStream(is_two);String disp="";

while((disp=dis_two.readLine())!=null)

{System.out.println(disp);

}System.out.println();

}

break;

case 1:

{

System.out.println("\r\n");System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter the food name:"+" ");

String nameInput_two=br.readLine();

while(nameInput_two.trim().length()


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System.out.println("");

System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter the food Price:"+" ");

String priceInput_two=br.readLine();

while(priceInput_two.trim().length()40)



System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");System.out.println("\t"+"\t"+"|"+"\t"+"THE CHOICE YOU ENTERED IS


System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"TRY AGAIN!"+"\t"+"\t"+"\t"+"|");


System.out.println("\t"+"\t"+" -----------------------------------------------");System.out.println("\r\n");

System.out.print("\r\n"+"\t"+"\t"+"\t"+"Re-Enter the food Price:"+" ");

priceInput_two=br.readLine();

priceInputtt=Integer.parseInt(priceInput_two);}

System.out.println("\r\n");System.out.print("\t"+"\t"+"\t"+"Please enter your name:"+" ");




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System.out.println("\t"+"\t"+"|"+"\t"+" YOU ENTERED AN EMPTY

VALUE!"+"\t"+"\t"+" |");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");




System.out.print("\t"+"\t"+"\t"+"Please enter your name:"+" ");name_one=br.readLine();

}

String name_two=name_one.toUpperCase();System.out.print("\r\n"+"\r\n");

int priceInput_three=Integer.parseInt(neww1);

int priceInput_four=Integer.parseInt(priceInput_two);

int priceOutput=priceInput_three+priceInput_four;

File file_two=new File("text-file//text_2.txt");OutputStream os_2=new FileOutputStream(file_two);

DataOutputStream dos_three=new DataOutputStream(os_2);

dos_three.writeBytes("\r\n"+"\t"+"\t"+"#########################################

########");dos_three.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"DHERAI MITHO KHANEKURA

RESTURANT"+"\t"+"#");dos_three.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"Naya-Baneshwor, Kathmandu,

Nepal"+"\t"+"#");dos_three.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"Food-Item"+"\t\t"+"Price-RS."+"\t"+"#");

dos_three.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");


dos_three.writeBytes("\t"+"\t"+"#"+"\t"+neww+"\t\t\t"+neww1+"\t\t"+"#");dos_three.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.writeBytes("\t"+"\t"+"#"+"\t"+nameInputtt+"\t\t\t"+priceInputtt+"\t\t"+"#");

dos_three.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"-----------------------------"+"\t"+"\t"+"#");


dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"Total:"+"\t\t\t"+priceOutput+"\t\t"+"#");dos_three.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"-----------------------------"+"\t"+"\t"+"#");





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dos_three.writeBytes("\t"+"\t"+"#"+"\t"+"ENJOY YOUR FOOD

"+name_two+"!"+"\t"+"\t\t"+"#");dos_three.writeBytes("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.writeBytes("\t"+"\t"+"##############################################

###");dos_three.flush();

dos_three.close();

InputStream is_3=new FileInputStream(file_two);

DataInputStream dis_3=new DataInputStream(is_3);

String disp_1="";

while((disp_1=dis_3.readLine())!=null)

{

System.out.println(disp_1);

}}

break;}

}

catch(Exception e){








EnterNamee(neww,neww1,jj);

}}

}

File name : log_file.java

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.File;import java.io.FileInputStream;



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import java.io.FileOutputStream;


import java.io.OutputStream;import java.util.ArrayList;

import java.util.List;

import java.io.*;import java.util.*;

public class log_file{

public void log_info()


System.out.println("\t"+"\t"+"################################################

#");

System.out.println("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#");System.out.println("\t"+"\t"+"#"+"\t"+"Please enter the data for log file"+"\t"+"#");

System.out.println("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#");System.out.println("\t"+"\t"+"################################################

#");


}

public List EnterNamem()

{try

{

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter the food name:"+" ");

String nameInput=br.readLine();

while(nameInput.trim().length()


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}

String nameInputt=nameInput.toUpperCase();System.out.println("");

System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter the food Price:"+" ");

String priceInput=br.readLine();

while(priceInput.trim().length()40)



System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");System.out.println("\t"+"\t"+"|"+"\t"+"THE CHOICE YOU ENTERED IS


System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"TRY AGAIN!"+"\t"+"\t"+"\t"+"|");



System.out.println("\r\n");System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter the food Price:"+" ");

priceInput=br.readLine();

priceInputt=Integer.parseInt(priceInput);}

System.out.println("\r\n"+"\r\n");List list =new ArrayList();

list.add(nameInputt);

list.add(priceInputt);



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for(int i=0; i


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System.out.println("\t"+"\t"+"|"+"\t"+" YOU ENTERED AN EMPTY

VALUE!"+"\t"+"\t"+" |");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" |");




System.out.print("\t"+"\t"+"\t"+"Re-Enter your choice:"+" ");ii=br.readLine();

}

int ss=Integer.parseInt(ii);if(ss>1)

{



System.out.println("\t"+"\t"+"|"+"\t"+"THE CHOICE YOU ENTERED ISINVALID!"+"\t"+"|");



System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");System.out.println("\t"+"\t"+" -----------------------------------------------");


System.out.print("\t"+"\t"+"\t"+"Re-Enter your choice:"+" ");ii=br.readLine();

ss=Integer.parseInt(ii);

}return ss;

}

catch(Exception e)

{








return get_choice();

}



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}

public void EnterNameem(String neww, String neww1, int m){

try

{BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

switch(m){

case 0:

{

System.out.println("\r\n");System.out.print("\t"+"\t"+"\t"+"Please enter your name:"+" ");




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dos_two.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_two.write("\t"+"\t"+"#"+"\t"+"Food-Item"+"\t\t"+"Price-RS."+"\t"+"#");

dos_two.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_two.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_two.write("\t"+"\t"+"#"+"\t"+neww+"\t\t\t"+neww1+"\t\t"+"#");

dos_two.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_two.write("\t"+"\t"+"#"+"\t"+"-----------------------------"+"\t"+"\t"+"#");

dos_two.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_two.write("\t"+"\t"+"#"+"\t"+"Total:"+"\t\t\t"+neww1+"\t\t"+"#");dos_two.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n"dos_two.write(

"\t"+"\t"+"#"+"\t"+"-----------------------------"+"\t"+"\t"+"#");

dos_two.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_two.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_two.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_two.write("\t"+"\t"+"#"+"\t"+"ENJOY YOUR FOOD

"+name_two+"!"+"\t"+"\t\t"+"#");

dos_two.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_two.write("\t"+"\t"+"#################################################");

dos_two.close();}

break;

case 1:{

System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter the food name:"+" ");

String nameInput_two=br.readLine();

while(nameInput_two.trim().length()


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String priceInput_two=br.readLine();

while(priceInput_two.trim().length()40)

{




INVALID!"+"\t"+"|");System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");


System.out.println("\t"+"\t"+"|"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"|");System.out.println("\t"+"\t"+" -----------------------------------------------");


System.out.print("\r\n"+"\t"+"\t"+"\t"+"Re-Enter the food Price:"+" ");priceInput_two=br.readLine();

priceInputtt=Integer.parseInt(priceInput_two);

}


System.out.print("\t"+"\t"+"\t"+"Please enter your name:"+" ");

String name_one=br.readLine();while(name_one.trim().length()


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System.out.print("\t"+"\t"+"\t"+"Please re-enter your name:"+" ");name_one=br.readLine();

}

String name_two=name_one.toUpperCase();

System.out.print("\r\n"+"\r\n");

int priceInput_three=Integer.parseInt(neww1);

int priceInput_four=Integer.parseInt(priceInput_two);int priceOutput=priceInput_three+priceInput_four;

BufferedWriter dos_three = new BufferedWriter(new FileWriter("text-file//text_3.txt",

true));dos_three.write("\r\n"+"\t"+"\t"+"#############################################

####");dos_three.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.write("\t"+"\t"+"#"+"\t"+"DHERAI MITHO KHANEKURA

RESTURANT"+"\t"+"#");

dos_three.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_three.write("\t"+"\t"+"#"+"\t"+"Naya-Baneshwor, Kathmandu, Nepal"+"\t"+"#");

dos_three.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_three.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.write("\t"+"\t"+"#"+"\t"+"Food-Item"+"\t\t"+"Price-RS."+"\t"+"#");

dos_three.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_three.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.write("\t"+"\t"+"#"+"\t"+neww+"\t\t\t"+neww1+"\t\t"+"#");

dos_three.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_three.write("\t"+"\t"+"#"+"\t"+nameInputtt+"\t\t\t"+priceInputtt+"\t\t"+"#");


dos_three.write("\t"+"\t"+"#"+"\t"+"-----------------------------"+"\t"+"\t"+"#");

dos_three.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_three.write("\t"+"\t"+"#"+"\t"+"Total:"+"\t\t\t"+priceOutput+"\t\t"+"#");


dos_three.write("\t"+"\t"+"#"+"\t"+"-----------------------------"+"\t"+"\t"+"#");dos_three.write("\r\n"+"\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");

dos_three.write("\t"+"\t"+"#"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"#"+"\r\n");dos_three.write("\t"+"\t"+"#"+"\t"+"ENJOY YOUR FOOD

"+name_two+"!"+"\t"+"\t\t"+"#");


dos_three.write("\t"+"\t"+"#################################################");



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dos_three.close();

}

break;}

}

catch (Exception e)

{

System.out.println("\r\n");System.out.println("\t"+"\t"+" -------------------------------------------------");






System.out.println("\t"+"\t"+" -------------------------------------------------");System.out.println("\r\n");

EnterNameem(neww,neww1,m);}

}

}

File name : Read_txtFile.java

import java.io.DataInputStream;import java.io.DataOutputStream;


import java.io.FileInputStream;import java.io.FileOutputStream;



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import java.util.ArrayList;import java.util.List;

import java.io.*;

import java.util.*;

public class Read_txtFile

{File file=new File("text-file//text_3.txt");

public Read_txtFile()

{try

{

System.out.println("\t"+"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxx");System.out.println("\t"+"x"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" x");

System.out.println("\t"+"x"+"\t"+" If you wish to view the log file press r"+"\t"+"\t"+"x");

System.out.println("\t"+"x"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" x");

System.out.println("\t"+"x"+"\t"+"If you do not wish to view log file press

anything"+"\t"+" x");System.out.println("\t"+"x"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+"\t"+" x");

System.out.println("\t"+"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxx");


System.out.print("\r\n"+"\t"+"\t"+"\t"+"Enter your choice:"+" ");String choice_r=br.readLine();

int choice=0;

if(choice_r.equals("r"))

{

choice=1;

}

switch(choice)

{case 1:

{

InputStream is=new FileInputStream(file);DataInputStream dis=new DataInputStream(is);

String line="";

List list=new ArrayList();



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while((line=dis.readLine())!=null)

{

list.add(line);}

System.out.println("\r\n");System.out.println("\t"+"\t"+"\t"+"\t"+"LOG FILES");

System.out.println("\t"+"\t"+"\t"+"\t"+"----------");

for(int i=0;i


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Test cases Objectives



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To examine whether the program is compiled or not.

2. To examine whether the program runs or not.

3. To examine whether the program displays the menu when enter is pressed

4.To examine To examine the box displaying the food choice information appears or not.

To examine whether food choice accepts empty input or not

6. To examine whether food choice accepts a character or not

7. To examine whether food choice accepts number greater than 12 or not

8. To examine whether the availability of food is displayed or not after the choice

is entered.

9. To examine whether food name accepts empty input or not

10. To examine whether food price accepts empty input or not

11. To examine whether food price accepts a character or not

12. To examine whether food price accepts number greater than 40 or not.

13.To examine To examine whether a box to order another food item appears or not.

14. To examine whether choice accepts empty input or not

15. To examine whether choice accepts a character or not

16. To examine whether choice accepts number greater than one or not

17. To examine whether name accepts empty input or not

To examine whether the food price, food name and customers name is written

on a file or not

19. To examine whether the bill is displayed or not

20. To examine whether data is appended on a file or not

21. To examine whether the program asks for the same data to be entered for the

log file or not

22. To examine whether a box that gives choice to view log file appears or not

23. To examine whether the log file is displayed or not when r is pressed

24. To examine whether the program exits or not from the system when choices

other than r is pressed



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Test cases and result

Test case: 1

To examine whether the program is compiled or not

Test Data: Javac orderservicee.java

Expected Test Result: The program should be compiled

Actual Test Result: The program is compiled

Conclusion: The command was executed without any error



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Test case: 2

To examine whether the program runs or not

Test Data: Java orderservicee.java

Expected Test Result: Program must display welcome message

Actual Test Result: Program displayed welcome message




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Test case: 3

To examine whether the program displays the menu when enter is

pressed

Test Data: enter

Expected Test Result: Menu should be displayed

Actual Test Result: Menu was displayed




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Test case: 4

Objective: To examine the box displaying the food choice information

appears or not.

Test Data: blank

Expected Test Result: A message box must appear

Actual Test Result: A message box appears




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Test case: 5

Objective: To examine whether food choice accepts empty input or not

Test Data: enter

Expected Test Result: Error message should appear

Actual Test Result: Error message appeared




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Test case: 6

Objective: To examine whether food choice accepts a character or not

Test Data: A

Expected Test

Result:

Error message should appear




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Test case: 7

To examine whether food choice accepts number greater than 12

or notTest Data: 13






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Test case: 8

Objective: To examine whether the availability of food is displayed or notafter the choice is entered.

Test Data: enter

Expected Test Result: A message saying Available or Unavailable should appear





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Test case: 9

Objective: To examine whether food name accepts empty input or not

Test Data: enter






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Test case: 10

Objective: To examine whether food price accepts empty input or not

Test Data: enter

Expected Test Result: Error message should appearActual Test Result: Error message appeared




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Test case: 11

Objective: To examine whether food price accepts a character or not

Test Data: B





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Test case: 12

To examine whether food price accepts number greater than 40 or

not.

Test Data: 42






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Test case: 13

Objective: To examine whether a box to order another food item appears or

not.

Test Data: blank

Expected Test Result: Box with a message should appear

Actual Test Result: Box with a message appears



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Test case: 14

Objective: To examine whether choice accepts empty input or notTest Data: enter





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Test case: 15

Objective: To examine whether choice accepts a character or not

Test Data: C





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Test case: 16

Objective: To examine whether choice accepts number greater than one or

not

Test Data: 3






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Test case: 17

Objective: To examine whether name accepts empty input or not

Test Data: enter






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Test case: 18

Objective: To examine whether the food price, food name and customers

name is written on a txt file or not

Test Data: enter

Expected Test Result: This information should be written on a file

Actual Test Result: This information were written on a file




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Test case: 19

Objective: To examine whether the bill is displayed or not

Test Data: enter

Expected Test Result: Bill should be displayed

Actual Test Result: Bill displayed




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Test case: 20

Objective: To examine whether data is appended on a txt file or not

Test Data: blank

Expected Test Result: Data should append on a file

Actual Test Result: Data was appended on a file




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Test case: 21

Objective: To examine whether the program asks for the same data to be

entered for the log file or not

Test Data: blank

Expected Test Result: A box with a message should appear



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Actual Test Result: A box with a message appears


Test case: 22

Objective: To examine whether a box that gives choice to view log file

appears or not

Test Data: blank

Expected Test Result: A box with a message should appear



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Actual Test Result: A box with a message appears


Test case: 23

Objective: To examine whether the log file is displayed or not when r is

pressed

Test Data: R

Expected Test Result: Log file must display

Actual Test Result: Log file was displayed




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Test case: 24

Objective: To examine whether the program exits or not from the system

when choices other than r is pressed

Test Data: enter



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Expected Test Result: The program must exit

Actual Test Result: The program exit from the system


Test log

Test cases Status

1. Successful

2. Successful

3. Successful

4. Successful

5. Successful

6. Successful

7. Successful



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8. Successful

9. Successful

10. Successful

11. Successful

12. Successful

13. Successful

14. Successful

15. Successful

16. Successful

17. Successful

18. Successful

19. Successful

20. Successful

21. Successful

22. Successful

23. Successful

24. Successful

System requirement

Software requirement

Jdk (Java Development Kit) 1.6 plus

Windows command prompt

Notepad

Hardware requirement

Pentium - 2 plus

RAM - 128 plus



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Processor- 800MHz plus

Hard Disk- 80 GB plus

User manual

Users should follow following steps to run my program:

Step 1

Go to the command prompt and make sure the path to the java/jdk/bin is set.



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Step 2

Type the name of the file i.e. java orderServicee and press enter

Step 3

Press enter to view the menu of food items



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Step 4

Enter any one of the choice i.e. a number mentioned on the left hand side of the food item

of the menu.

Step 5

After the availability message is displayed, enter the name of the food



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Step 6

Then enter the price of the food.

Step 7

Now if you wish to order another food item enter 1 otherwise press 0.



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Step 8

If you press 1, type the name of another food item.

Step 9



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Then type the price of that particular food item.

Step 10

After that type the name of the customer.

Step 11

Finally the bill of the customer will be displayed that will be printed with the help of a

printer.



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Step 13

Now to keep the data on the log file again enter the name of the food item.

Step 12



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Then enter the price of the food.

Step 13

Now if you wish to order another food item enter 1 otherwise press 0.

Step 14



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If you press 1, type the name of another food item.

Step 15

Then type the price of that particular food item.

Step 16



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After that type the name of the customer.

Step 17

Now if you wish to view log file press r otherwise press any key.

Step 18

If you press r the log file will be displayed and finally the program will terminate.



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Conclusion

This program is mainly developed to implement new billing system at the restaurant for

the easiness of both employees of the restaurant and the customers as well. The project is

now complete and soon the restaurant will implement it in their restaurant.



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Building this project not only helped me in polishing my skills regarding programming but

also helped me to broaden my knowledge in this field.

Program Strength

1. The program is not time consuming which helps to save the time of both

employees as well as the customers.

2. The log file of the bills maintained by this program makes the records less

vulnerable to loss and damages in comparison to papers.

3. The employee can insert and can view the records of the bills easily.

4. This program does not require complex hardware devices or software

applications.

5. There is no necessity to have complex knowledge about java programming to run

this program. So, anyone can use this program without much difficulty.

Program Weakness

1. This program can only run in console mode which is not quite used in todays

context.

2. This program can only take order of two items.

3. The data and time cannot be mentioned in the program. So, it is difficult to

determine at what time and which date the customers consumed the food.

Program Enhancements

1. The program will be made more attractive and one that will support GUI.

2. The program will be coded in such a way that more number of food items can

be ordered.



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3. Date and time will be inserted in the program so that it can be inserted in the

record.

4. In addition to appending and retrieving option that already exists in the program,

a delete option will be added so that unnecessary or incorrect data can bedeleted from the record.

5. Security measures will be implemented in the program so that only authorized

person can append, retrieve and delete the record from the file.

References

Title: Package Summary

URL address: http://java.sun.com/j2se/1.4.2/docs/api/java/io/package-summary.html

http://java.sun.com/j2se/1.4.2/docs/api/java/io/package-summary.htmlhttp://java.sun.com/j2se/1.4.2/docs/api/java/io/package-summary.html


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Title: Beginners Java Tutorial

URL address: http://www.roseindia.net/java/beginners/index.shtml

http://www.roseindia.net/java/beginners/index.shtmlhttp://www.roseindia.net/java/beginners/index.shtml


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Turnitin O riginality Report

Java Documentation (Manisha Bhattarai

Documents