Ship A

8/2/2019 Ship A

1/62

ON

ADVANCE CALCULATORADVANCE CALCULATOR

A

Project Submitted To Punjab Technical University

Study Center, Patiala

In Fulfillment Of The Requirement For M.Sc(I.T)

Session 2009-2010

(4TH Semester)

Under the guidance of

Vipan Batta

Submitted by

SHILPA RANI (9205910557)

PUNJAB TECHNICAL UNIVERSITY

JALANDHAR, PUNJAB

8/2/2019 Ship A

2/62

CERTIFICATE

This is to certify that the project entitled Advance

Calculator is developed and submitted by Shilpa Rani,Mandeep

Kaur,Ramandeep kaur in the partial fulfillment of requirement of

MscIT for session 2009-2010 under the Vaishnoo Maa Computer

Center, Patiala. This project is bonafield record of work carried out by

students during the course of MscIT

It is further certified that this project or part of this project has

not been submitted for the award of any other degree/diploma.

(Mr. Gurpreet Singh)

Manager,

Vaishnoo Maa Computers,

PTU Study Center,

Patiala-147001

8/2/2019 Ship A

3/62

Preface

As a part of the regulations for the grant of the MscIT, the

Vashnoo Maa Computer Center, Patiala requires all the students of

MscIT to submit project.

In the pursuance of the above requirements in the partial

fulfillment of the requirements of the MscIT, we were allotted the

project under the Supervision of Mr Vipan Batta.

We have tried my best to make a good project report.

Information in this project is collected from various books, and with

the help of the teachers.

We also highly thankful to the teachers for providing me

guidance through out the project.

Submitted by


8/2/2019 Ship A

4/62

ACKNOWELDGEMENT

Punjab Technical University, jallandhar is a great education

institute dedicated to the pursuit of academic excellence and

innovations of much college of districts of Punjab state are affiliated

to the privileges of this university. The university has research

teaching departments. There is a well stocked library, spacious

auditorium, centre, space, sports stadium, observatory, art museum

and beautiful botanical gardens.

The faculties of computer center of Punjab Technical University

are of very high quality. Central computer center of university have

the best infrastructure in terms of computer system. Computer center

also maintains the website of university "www.ptu.jal.org". Central

computer center provides the best facilities to the student. Its general

labs remains open for the students from morning to evening

Teacher of the MscIT department provide all kind of help to the

students so that the students may understand the technical aspects of

the subject. There is a library in computer center providing all

necessary books to the student.

We are highly thankful to the teachers, officers and staff of

computer Center.

Punjab Technical University, Jalandhar is providing a great

opportunity through MscIT to students in different faculties to learn

about computer.. We are highly thankful of the University.


8/2/2019 Ship A

5/62

INDEX

1. Certificate

2. Preface3. Acknowledgment

4. hardware and software requirements

5. introduction to project

6. introduction to java

7. source code of the project

8. bibliography

8/2/2019 Ship A

6/62

Introduction to Project

Title: advanced Calculator

Description: This is an advanced scientific calculator version Performs

trigonometric, logarithmic, exponential functions, memory operations.

Also it can store infinite number of values in memory u can view and

copy down the values from memory to your display. it is classical

calculator but has some thing special that you can store your work in

a file in the hard and return to it and work on Keyboard besides we'd

created our own Math functions including sin & cos .

8/2/2019 Ship A

7/62

Introduction to JAVA

Java is a programming language. Developed in the years 1991 to

1994 by Sun Microsystems.Programs written in Java are called

applets. The first browser that could show applets was introduced in

1994, as "WebRunner" - later known as "The HotJava Browser".

You do not need to know Java to install applets on your pages. There

are thousands of free applets available on the internet for almost any

purpose. Most of them can be customized without programming.

Most of today's browsers can run applets. The ones that can't, aren't

of much importance, since very few users have such outdated

browsers. To be more precise, applets can be embedded in pages

viewed by Netscape 2+ and Internet Explorer 3+.

However, some people have turned off the ability to run applets in

their browser. This is in most cases companies with more or less

paranoid ideas of potential hacking.

No matter what their motivation is, it's a fact that there are a minor

amount of people out there, that will not see your applets, even if

their browser is capable of showing it. This should be taken into

consideration before deciding to add applets to your pages.

An applet can be embedded into a webpage. Usually the applet has

several settings that will allow you to personalize it. For instance, if

you insert an applet that will work as a menu, you can specify which

8/2/2019 Ship A

8/62

options should be in the menu, and which pages should be loaded

upon click on an option.

Since Java is a real programming language there aren't many

limitations to it. Any program running on your computer could

possibly have been made as an applet. Spreadsheets,

wordprocessors, graphics programs... even entire browsers could be

made with Java. However, most applets used on webpages serve

much smaller purposes than the ones mentioned. The reason is

simple: They need to be transferred through the internet, and

therefore can't take up just any amount of space.

When you put an applet on your page you will need to save the applet

on your server as well as the HTML page the applet is embedded in.

When the page is loaded by a visitor the applet will be loaded and

inserted on the page where you embedded it.

8/2/2019 Ship A

9/62

The Java Programming Language

The Java programming language is a high-level language that can be

characterized by all of the following buzzwords:

Simple Architecture neutral

Object oriented Portable

Distributed High performance

Mul tithreaded Robust

Dynamic Secure

Each of the preceding buzzwords is explained in The Java Language

Environment, a white paper written by James Gosling and Henry

McGilton.

In the Java programming language, all source code is first written in

plain text files ending with the .java extension. Those source files are

then compiled into .class files by thejavac compiler. A .class file does

not contain code that is native to your processor; it instead contains

bytecodes the machine language of the Java Virtual Machine1 (Java

VM). Thejava launcher tool then runs your application with an

instance of the Java Virtual Machine.

An overview of the software development process.
http://java.sun.com/docs/white/langenv/http://java.sun.com/docs/white/langenv/http://java.sun.com/docs/books/tutorial/getStarted/intro/definition.html#FOOT%23FOOThttp://java.sun.com/docs/books/tutorial/getStarted/intro/definition.html#FOOT%23FOOThttp://java.sun.com/docs/white/langenv/http://java.sun.com/docs/white/langenv/

8/2/2019 Ship A

10/62

Because the Java VM is available on many different operating

systems, the same .class files are capable of running on Microsoft

Windows, the Solaris TM Operating System (Solaris OS), Linux, or Mac

OS. Some virtual machines, such as the Java HotSpot virtual

machine, perform additional steps at runtime to give your application

a performance boost. This include various tasks such as finding

performance bottlenecks and recompiling (to native code) frequently

used sections of code.

Through the Java VM, the same application is

capable of running on multiple platforms.

The Java Platform

A platform is the hardware or software environment in which a

program runs. We've already mentioned some of the most popular

platforms like Microsoft Windows, Linux, Solaris OS, and Mac OS.
http://java.sun.com/products/hotspot/http://java.sun.com/products/hotspot/http://java.sun.com/products/hotspot/http://java.sun.com/products/hotspot/

8/2/2019 Ship A

11/62

Most platforms can be described as a combination of the operating

system and underlying hardware. The Java platform differs from most

other platforms in that it's a software-only platform that runs on top

of other hardware-based platforms.

The Java platform has two components:

TheJava Virtual Machine

TheJava Application Programming Interface (API)

You've already been introduced to the Java Virtual Machine; it's the

base for the Java platform and is ported onto various hardware-based

platforms.

The API is a large collection of ready-made software components that

provide many useful capabilities. It is grouped into libraries of related

classes and interfaces; these libraries are known as packages. The

next section, What Can Java Technology Do? highlights some of the

functionality provided by the API.

The API and Java Virtual Machine insulate the

program from the underlying hardware.
http://java.sun.com/docs/books/tutorial/getStarted/intro/cando.htmlhttp://java.sun.com/docs/books/tutorial/getStarted/intro/cando.html

8/2/2019 Ship A

12/62

As a platform-independent environment, the Java platform can be a

bit slower than native code. However, advances in compiler and

virtual machine technologies are bringing performance close to that of

native code without threatening portability.

The terms"Java Virtual Machine" and "JVM" mean a Virtual Machine

for the Java platform.

What Can Java Technology Do?

The general-purpose, high-level Java programming language is a

powerful software platform. Every full implementation of the Java

platform gives you the following features:

Development Tools: The development tools provide

everything you'll need for compiling, running, monitoring,

debugging, and documenting your applications. As a new

developer, the main tools you'll be using are the javac compiler,

thejava launcher, and thejavadoc documentation tool.

Application Programming Interface (API): The API

provides the core functionality of the Java programming

language. It offers a wide array of useful classes ready for use

in your own applications. It spans everything from basic

objects, to networking and security, to XML generation and

database access, and more. The core API is very large; to get

8/2/2019 Ship A

13/62

an overview of what it contains, consult the Java SE

Development Kit 6 (JDKTM 6) documentation.

Deployment Technologies: The JDK software provides

standard mechanisms such as the Java Web Start software and

Java Plug-In software for deploying your applications to end

users.

User Interface Toolkits: The Swing and Java 2D toolkits

make it possible to create sophisticated Graphical User

Interfaces (GUIs).

Integration Libraries: Integration libraries such as the Java

IDL API, JDBCTM API, Java Naming and Directory InterfaceTM

("J.N.D.I.") API, Java RMI, and Java Remote Method Invocation

over Internet Inter-ORB Protocol Technology (Java RMI-IIOP

Technology) enable database access and manipulation of

remote objects.

How Will Java Technology Change My Life?

We can't promise you fame, fortune, or even a job if you learn the

Java programming language. Still, it is likely to make your programs

better and requires less effort than other languages. We believe that

Java technology will help you do the following:

Get started quickly: Although the Java programming

language is a powerful object-oriented language, it's easy to

learn, especially for programmers already familiar with C or C+

+.
http://java.sun.com/javase/6/docs/index.htmlhttp://java.sun.com/javase/6/docs/index.htmlhttp://java.sun.com/javase/6/docs/index.htmlhttp://java.sun.com/javase/6/docs/index.htmlhttp://java.sun.com/javase/6/docs/index.htmlhttp://java.sun.com/javase/6/docs/index.html

8/2/2019 Ship A

14/62

Write less code: Comparisons of program metrics (class

counts, method counts, and so on) suggest that a program

written in the Java programming language can be four times

smaller than the same program written in C++.

Write better code: The Java programming language

encourages good coding practices, and automatic garbage

collection helps you avoid memory leaks. Its object orientation,

its JavaBeansTM component architecture, and its wide-ranging,

easily extendible API let you reuse existing, tested code and

introduce fewer bugs.

Develop programs more quickly: The Java programming

language is simpler than C++, and as such, your development

time could be up to twice as fast when writing in it. Your

programs will also require fewer lines of code.

Avoid platform dependencies: You can keep your program

portable by avoiding the use of libraries written in other

languages.

Write once, run anywhere: Because applications written in

the Java programming language are compiled into machine-

independent bytecodes, they run consistently on any Java

platform.

Distribute software more easily: With Java Web Start

software, users will be able to launch your applications with a

single click of the mouse. An automatic version check at startup

ensures that users are always up to date with the latest version

8/2/2019 Ship A

15/62

of your software. If an update is available, the Java Web Start

software will automatically update their installation.

8/2/2019 Ship A

16/62

SOFTWAREAND

HARDWARE REQUIRMENTS

8/2/2019 Ship A

17/62

SOFTWARE & HARDWARE REQUIREMENTS

SOFTWARE REQUIREMENTS

1. Java SDK1.3

2. Ms Office

Minimum HARDWARE REQUIREMENTS

1. Computer P-3

2. RAM 256 MB

3. WINDOWS 98 SE

4. HARDISK (40 GB)

8/2/2019 Ship A

18/62

SOURCE CODE OF THE PROJECT

8/2/2019 Ship A

19/62

SHILPA RANI

MANDEEP

KAUR

RAMANDEEP

KAUR

8/2/2019 Ship A

20/62

SOURCE CODE OF THE CALCULATOR

import java.awt.*;

import java.util.*;

import java.awt.event.*;

import java.applet.*;

import java.math.*;

import java.io.*;

import java.lang.*;

public class MyCalc extends Applet implements

ActionListener,ItemListener,KeyListener

{

private MyFile f=new MyFile();//class MyFile is an inner

class contains the methods we used to act with the files

private CheckboxGroup deg;

private TextArea ta;

private Label l,memoryTag;

private MyButton[] button;

private TextField t;

private String s="0",s1="",s2="",op="",s3="";

private double m=0,n=0,mem=0;

8/2/2019 Ship A

21/62

private Panel p1,p2,p3,p4,p5,p6,p7,p8;

private String[]

Sbutton={"Power","Advanced","Shift","C","CE","Back

Space","7","8","9","4",

"5","6","1","2","3","0",".","PI","=","Ans"

,"Sin","Cos","Sqrt","Sqr","X!","Pow","%",

"1/X","+/-","S_Store",

"E_Store","/","Del","*","Me","-","M+","+

","M-","MR",

"R","Previow","Close"};

private boolean

cond=false,cond1=false,cond2=false,cond3=false,cond4=false,c

ond5=true,pressed=false;

/*

the conditions :

1:cond :for advanced button

2:cond1 :for Power

3:cond3 :for checkbox radian or degrees

4:cond4 :for start saving and end saving into the file

5:cond5 :for the simecolon

5:pressed for making the textfield = "" after any

calculation

8/2/2019 Ship A

22/62

*/

public void init()

{

setLayout(new BorderLayout(0,7));//the layout for

the applet

setBackground(new Color(58,110,165));

l=new Label(" Bad Info Guys");

memoryTag=new Label(" ");

memoryTag.setEnabled(true);

l.setFont(new Font("Times Roman",Font.BOLD,17));

memoryTag.setFont(new Font("Times

Roman",Font.BOLD,17));

memoryTag.setForeground(Color.black);

l.setForeground(Color.green);

l.setForeground(Color.green);

ta=new TextArea("Bahaa

Mourad\nGoergeElias\nSamer Al_Fakih\nBashar

Mahasin\n-----------------------\n",8,17,TextArea.SCROLLBARS_

VERTICAL_ONLY);

ta.setFont(new Font("Times Roman",Font.BOLD,12));

ta.setEditable(false);

8/2/2019 Ship A

23/62

deg = new CheckboxGroup();//the container of the

checkboxs

Checkbox degrees = new Checkbox("Deg",deg,true);

Checkbox radians = new Checkbox("Rad",deg,false);

button =new MyButton[43];

for(int i=0;i

8/2/2019 Ship A

24/62

p5=new Panel();

p6=new Panel();

p7=new Panel();

p8=new Panel();

//adding the components to matching panel

p5.setBounds(20,1,275,30);

p5.add(button[0]);

p5.add(l);

add(p5);

p1.setLayout(new GridLayout(3,3,2,2));

p1.setBounds(20,104,225,78);

for(int i=20;i

8/2/2019 Ship A

25/62

p4.add(button[2]);

p4.add(degrees);

p4.add(radians);

t.setBackground(Color.black);

add(p2);


p3.setBounds(20,190,225,156);

for (int i=3;i

8/2/2019 Ship A

26/62

t=new TextField(30);

t.setFont(new Font("Times Roman",Font.BOLD,12));

t.addKeyListener(this);

t.setText("0");

//constructin the panels in the applet

p1=new Panel();

p2=new Panel();

p3=new Panel();

p4=new Panel();

p5=new Panel();

p6=new Panel();

p7=new Panel();

p8=new Panel();

//adding the components to matching panel

p5.setBounds(20,1,275,30);

p5.add(button[0]);

p5.add(l);

add(p5);


p1.setBounds(20,104,225,78);

8/2/2019 Ship A

27/62

for(int i=20;i

8/2/2019 Ship A

28/62

p7.setBounds(300,1,150,182);

p7.add(ta);

p7.add(button[41]);

p7.add(button[42]);

add(p7);


p6.setBounds(300,190,150,156);

p8.setBounds(0,0,400,40);

for(int i=29;i

8/2/2019 Ship A

29/62

t.setEditable(false);

//adding the action listener

for(int i=0;i

8/2/2019 Ship A

30/62

op="";

}

else if (op.compareTo("-")==0)

{

l=m-n;

op="";

}

else if (op.compareTo("*")==0)

{

l=m*n;

op="";

}

else if (op.compareTo("/")==0)

{

l=m/n;

op="";

}

else if (op.compareTo("")==0)

{

l=Double.valueOf(s2).doubleValue();

}

8/2/2019 Ship A

31/62

else if (op.compareTo("Pow")==0)

{

o=Integer.valueOf(s2).intValue();

l=MyMath.mypow(m,o);

op="";

}

cond5=true;

pressed=true;

s=""+l;

t.setText(s);

f.addTofile(s1+opp+s2+"="+l);

}

public void keyPressed(KeyEvent e)

{

double ac=e.getKeyCode();

if((ac==13)||(ac==10))

calculate();

else if(ac==8)

8/2/2019 Ship A

32/62

{

if(s.compareTo("")==0)

t.setText("Error");

else

{

s=s.substring(0,s.length()-1);

t.setText(s);

}

}

}

public void keyTyped(KeyEvent e)

{

char ch;

ch=e.getKeyChar();

if ((ch=='1')||(ch=='2')||(ch=='3')||(ch=='4')||

(ch=='5')||(ch=='6')||(ch=='7')||(ch=='8')||(ch=='9')||

(ch=='0'))

{ if(pressed)

{

s="0";

pressed=false;

}

if(s=="0")

8/2/2019 Ship A

33/62

s=""+ch;

else s=s+ch;

}

else if(ch=='.'&&cond5)

{

if(pressed)

{

s="0";

pressed=false;

}

s=s+ch;

cond5=false;

}

else if((ch=='+')||(ch=='-')||(ch=='*')||(ch=='/'))

{

op=""+ch;

s1=s;

s="0";

}

else if(ch=='=')

calculate();

t.setText(s);

8/2/2019 Ship A

34/62

}

public void keyReleased(KeyEvent e)

{

}

public void itemStateChanged(ItemEvent e)

{

}

public void actionPerformed(ActionEvent e)

{

if (e.getSource()==button[29])//for begin store in

the file

{

cond4=true;

button[30].setEnabled(true);

button[29].setEnabled(false);

f.CreateFile();

}

else if (e.getSource()==button[30])//end of the

storing

{

cond4=false;


8/2/2019 Ship A

35/62


f.endStore();

}

else if (e.getSource()==button[41])//preview

{



f.WriteFileOnTextArea();

}

else if (e.getSource()==button[42])//close for

textarea

{



ta.setText("Bahaa

Mourad\nGoergeElias\nSamer Al_Fakih\nBashar

Mahasin\n-----------------------\n");

}

else if (e.getSource()==button[32])//Del button

{

f.CreateFile();

}

8/2/2019 Ship A

36/62

else if (e.getSource()==button[1])//for advanced

buttons

{

if(!cond)

{

cond=true;

p1.setVisible(true);

button[1].setLabel("Simple");

for(int i=20;i

8/2/2019 Ship A

37/62

t.setBackground(Color.white);

cond1=true;

button[0].setLabel("OFF");

for(int i=1;i

8/2/2019 Ship A

38/62

button[i].setEnabled(false);

}

}

else if(e.getSource()==button[16])//semicolon

{

if(pressed)

{

s="0";

pressed=false;

}

if (cond5)

{

s=s+".";

cond5=false;

t.setText(s);

}

}

//The implemetation of the Number Buttons

else if ((e.getSource()==button[6]) ||

(e.getSource()==button[7]) || (e.getSource()==button[8]) ||



8/2/2019 Ship A

39/62


(e.getSource()==button[15]) )

{ if(pressed)

{

s="0";

pressed=false;

}

if(s.compareTo("0")==0)

s=e.getActionCommand();

else s=s+e.getActionCommand();

s3=s;

t.setText(s);

showStatus(e.getActionCommand());

}

//the opertor section (simple opertaion)

else if ((e.getSource()==button[37])||

(e.getSource()==button[35])||(e.getSource()==button[33])||

(e.getSource()==button[31])||(e.getSource()==button[25]))

{

cond5=true;

op=e.getActionCommand();

s1=s;

8/2/2019 Ship A

40/62

s3=s;

s="0";

t.setText(s);

}

else if ((e.getSource()==button[18]))

calculate();

else if (e.getSource()==button[5])

{

s=s.substring(0,s.length()-1);

t.setText(s);

}


{

op="";

s=s3;

t.setText(s);

}


{

t.setText("0");

cond5=true;

s="0";

s1="";

8/2/2019 Ship A

41/62

s2="";

}


{

pressed=true;

float g=0,p=0;

p=Float.valueOf(s).floatValue();

if(p==0)

{

s="0";

t.setText("Invinite");

}

else{

g=(1/p);

s=""+g;

s3=s;

t.setText(s);

f.addTofile("1/"+p+"="+s);

}

}


{

if (!(s.compareTo("0")==0))

8/2/2019 Ship A

42/62

{

if(s.charAt(0)=='-')

s=s.substring(1,s.length());

else

s="-"+s;

t.setText(s);

}

}

else if(e.getSource()==button[34])

{

pressed=true;

memoryTag.setText("M");

mem=Double.valueOf(s).doubleValue();

if(mem==0)

memoryTag.setText(" ");

showStatus("Memory="+mem);

}


{

pressed=true;


mem=mem+

(Double.valueOf(s).doubleValue());

8/2/2019 Ship A

43/62

if(mem==0)



}


{

pressed=true;


mem=mem-(Double.valueOf(s).doubleValue());

if(mem==0)



}


{

s=""+mem;

s3=s;

t.setText(s3);

}


{

pressed=true;

8/2/2019 Ship A

44/62

double x=Double.valueOf(s).doubleValue();

String s4 =

deg.getSelectedCheckbox().getLabel();

if (!cond3)

{

if(s4.equals("Deg"))

{

while(x>=360)

x=x-360;

s=""+MyMath.msin(MyMath.invert(x));

t.setText(""+s);

}

else if(s4.equals("Rad"))

{

while(x>=(2*Math.PI))

x=x-Math.PI;

s=""+MyMath.msin(x);

t.setText(s);

}

f.addTofile("Sin("+x+")="+s);

}

else

8/2/2019 Ship A

45/62

{


{

x=Double.valueOf(s).doubleValue();

s=""+MyMath.invertt(Math.asin(x));

t.setText(""+s);

}


{


s=""+MyMath.invertt(Math.acos(x));

t.setText(s);

}

s3=s;

f.addTofile("aSin("+x+")="+s);

}

}


{

pressed=true;

double x=Double.valueOf(s).doubleValue();

String s4 =

deg.getSelectedCheckbox().getLabel();

8/2/2019 Ship A

46/62

if (!cond3)

{


{

while (x>=360)

x=x-360;

s=""+MyMath.mcos(MyMath.invert(x));

t.setText(s);

s3=s;

}


{

while(x>=(2*Math.PI))

x=x-Math.PI;

s=""+MyMath.mcos(x);

t.setText(s);

s3=s;

}

f.addTofile("Cos("+x+")="+s);

}

else

{

8/2/2019 Ship A

47/62


{



t.setText(s);

s3=s;

}


{



t.setText(s);

s3=s;

}

f.addTofile("aCos("+x+")="+s);

}

}


8/2/2019 Ship A

48/62

{

pressed=true;

double y=0;

double


y=MyMath.mysqr(x);

t.setText(""+y);

s=""+y;

s3=s;

f.addTofile("sqr("+x+")="+s);

}


{

pressed=true;

int x=Integer.valueOf(s).intValue();

if(x>39)

t.setText("Invinit");

else

{

s=""+MyMath.myX(x);

t.setText(""+s);

s3=s;

8/2/2019 Ship A

49/62

f.addTofile(""+x+"!="+s);

}

}


{

if(!cond3)

{

button[20].setLabel("arcSin");

button[21].setLabel("arcCos");

cond3=true;

}

else

{

cond3=false;

button[20].setLabel("Sin");

button[21].setLabel("Cos");

}

}


{

t.setText("0");

mem=0;

8/2/2019 Ship A

50/62

memoryTag.setText("");

}


{

pressed=true;

float p,r;

p=Float.valueOf(s).floatValue();

r=p/100;

s=""+r;

s3=s;

t.setText(s);

f.addTofile(""+p+"%="+s);

}


{

pressed=true;

double l=0;

m=Double.valueOf(s).doubleValue();

l=Math.sqrt(m);

s=""+l;

s3=s;

t.setText(s);

8/2/2019 Ship A

51/62

f.addTofile("sqrt("+m+")="+s);

}


{

pressed=true;

t.setText(s3);

s=s3;

showStatus(s3);

}


{

pressed=true;

t.setText(""+3.1415926);

s=""+3.1415926;

}

}

public static void main(String args[])

{

Frame app=new Frame("Calculator");

8/2/2019 Ship A

52/62

app.setSize(470,400);

app.addWindowListener(new

CloseWindowAndExit());

MyCalc m=new MyCalc();

m.init();

m.start();

app.add(m,BorderLayout.CENTER);

app.setVisible(true);

}

class MyButton extends Button

{

public MyButton(String name,Color xyz)

{

//here we override the constructor of the button

//first we call the Main constructor and then

//we add the color proprty and response for mouse motion

super(name);

setBackground(xyz);

addMouseListener(new MouseCalcButtonAdapter());

}

class MouseCalcButtonAdapter extends MouseAdapter

{

8/2/2019 Ship A

53/62

Color color;

public void mouseEntered(MouseEvent me)

{

color=me.getComponent().getBackground();

setForeground(Color.red);

setBackground(Color.black);

setFont(new Font("Courier

New",Font.BOLD,12));

}

public void mouseExited(MouseEvent me)

{

setFont(new Font("Courier

New",Font.BOLD,10));

setForeground(Color.black);

me.getComponent().setBackground(color);

}

}

}

class MyFile //MyFile is inner class

{

8/2/2019 Ship A

54/62

private DataOutputStream Of;

public void WriteFileOnTextArea()

{

String str;

char st;

str="";

try

{

DataInputStream If=new DataInputStream(new

FileInputStream("FileOutput.txt"));

while(If.readLine()!=null)

{

if ((st=If.readChar())!='E')

{

str=st+str;

}

if (st=='E')

{

ta.append(str);

ta.append("\n");

str="";

}

}

8/2/2019 Ship A

55/62

If.close();

}

catch(FileNotFoundException e) {}

catch(IOException e) {}

}

public void CreateFile()

{

try

{

Of=new DataOutputStream(new

FileOutputStream("FileOutput.txt"));

Of.writeChars("Begin\n");

}

catch(IOException e) {

System.err.println("File not opened

properly\n"+e.toString());

System.exit(1);

}

}

public void addTofile(String str)

{

try

8/2/2019 Ship A

56/62

{

for(int i=str.length()-1;i>=0;i--)

{

Of.writeChar(str.charAt(i));

Of.writeChars("\n");

}

Of.writeChar('E');

Of.writeChars("\n");

}

catch (IOException io){}

}

public void delFile()

{

CreateFile();

try

{

Of.close();

}


}

public void endStore()

{

try

8/2/2019 Ship A

57/62

{

Of.close();

}


}

}

}

class MyMath

{

public static double msin(double x)

{

if (x

8/2/2019 Ship A

58/62

if (x

8/2/2019 Ship A

59/62

double s;

s=1;

for(int i=1;i0;i--)

t=i*t;

return t;

}

}

8/2/2019 Ship A

60/62

class CloseWindowAndExit implements WindowListener

{

public void windowClosing(WindowEvent e)

{

System.exit(0);

}

public void windowActivated(WindowEvent e){}

public void windowClosed(WindowEvent e){}

public void windowDeactivated(WindowEvent e){}

public void windowDeiconified(WindowEvent e){}

public void windowIconified(WindowEvent e){}

public void windowOpened(WindowEvent e){}

};

8/2/2019 Ship A

61/62

BIBLIOGRAPHY

8/2/2019 Ship A

62/62

BIBLIOGRAPHY

For Making Project We Use Some Book For Coding And Use Some

Reference Notes Provided By Our Guide To Complete This Project

1. Java In 21 Days Bpb Publication

2. Applet Programming In Java

3. Java Complete Reference

4. Java In Easy Step By Dreamtech Publication

Date post:	06-Apr-2018
Category:	Documents
Upload:	amardeep-singh
View:	214 times
Download:	0 times

Ship A

Documents