Ajay Flow Chart

8/10/2019 Ajay Flow Chart

1/85

A

PROJECT REPORT

ON

ONLINE TESTING

SUBMITTED IN THE PARTIAL FULFILMENT OF THE REQUIREMENT

FOR THE AWARD OF THE DEGREE

MASTER

OF

COMPUTER APPLICATION

Submitted to: Submitted by:

Mr Sandeep Maan Neelam

HOD, Roll No

MCA-6

th

SEM

GOVERNMENT COLLEGE, SECTOR-14

GURGAON


2/85

2

Contents

1. Certificate

2. Acknowledgement

3.

Introduction to project

4.

Project Plans

5. Introduction to language

6. Project Design

7. Coding

8. Project Testing

9.

Conclusion

10.References


3/85

3

CERTIFICATE

This is to certify that Neelam is the student of Computer Science (Third year)

has completed the dissertation entitled ONLINE TESTING under my

supervision and they have completed with all requirements of the ordinance

for the submission of the dissertation. This is their original work and this

report is not submitted elsewhere for award of any degree .I recommend that

dissertation may be sent to evaluation.

Neelam Mr.Sandeep Maan(Name of guide) H.O.D.


4/85

4

INTRODUCTION & OVERVIEW OF PROJECT


5/85

5

INTRODUCTION & OVERVIEW OF PROJECT

INTRODUCTIONThe project is based on ONLINE TEST. This software firm deals in developing software for its

clients. This Notepad, using Java, Swing and AWT.

In modern civilization has become so complicated and sophisticated that to survive one has to be

competitive. This compiles the people to be acquainted with all type of happening in the society;

mankind is surrounded with a vast amount of data available. Modern business management system has

also rendered in a fashion so that it can be utilized with minimum possible time. Paper files require a

high amount of storage space and storage creates several other problems like fire risk, spoilage and

deterioration by way of aging humidity etc. Computerization of documents and the files has solved this

problem to create extent. Not only this, but it has to be high amount of relaxation to human mind, as

everything can be automated. Now the documents can in a number of ways, styles and number of

documents can be created as and when required without making any mistakes.

The suitable of computerization for an application may be determined as follows:

Volume of storage and calculation:Computerization is best suited to handle large volume of data. The

sufficient, economic and reliable storage characteristic of computer media must be exploited properly.

Quality of Output: Quality of output in terms of accuracy, elegance of output, aesthetics in formality

through use of word processing and powerful editing could justify use of a computer.

Computerized solutions should be cost justifiable: Money, time saving and efficiency justify the cost

of preparing writing and executing a program, Now-computer devices such as calculator can perform

money tasks more economically.


6/85

6

PROJECT OVERVIEW

This is an Online Test software, using Java, Swing and AWT. This project does the basic

operation of an Online Test,

In this project all the frames are designed in Swing. Today most programmers use Swing.Swing is a set of classes that provides more powerful and flexible GUI components than

does the AWT. Swing provides the look and feel of the modern Java GUI.

Swing did not exist in the early days of Java. Rather, it was a response to deficienciespresent in Javas original GUI subsystem: the Abstract Window Toolkit. The AWT

defines a basic set of controls, windows, and dialog boxes that support a usable, butlimited graphical interface.


7/85

7

PROJECT PLANS


8/85

8

PROJECT PLANS

Team Structure

Team Will be comprising of two members.

Our very able and helpful project guide Mr. Ankit.

Development Schedule

The work in developing the new system commented immediately with our first meeting with the

management and users thereafter we were in continuous touch with the management and users of the

company.

Phases Involved in the development of the system

Identify needs and benefits

Held meetings with the management and user

Studied and identified the existing system.

Identify needs and project constraints

Established project statements

Prepared a detailed report of the existing system at work.

Prepare the software requirement specifications .

Actual coding started

SYSTEM DEVELOPMENT LIFE CYCLE MODEL (SDLC MODEL)

This is also known as Classic Life Cycle Model (or) Linear Sequential Model (or) Waterfall Method.

This has the following activities.

1. System/Information Engineering and Modeling

2. Software Requirements Analysis

3. Systems Analysis and Design

4. Code Generation

5. Testing

6. Maintenance


9/85

9

System/Information Engineering and Modeling

As software is always of a large system (or business), work begins by establishing

requirements for all system elements and then allocating some subset of these

requirements to software. This system view is essential when software must interface

with other elements such as hardware, people and other resources. System is the basic

and very critical requirement for the existence of software in any entity. So if the system

is not in place, the system should be engineered and put in place. In some cases, to extract

the maximum output, the system should be re-engineered and spruced up. Once the ideal

system is engineered or tuned, the development team studies the software requirement forthe system.

Software Requirement Analysis

This is also known as feasibility study. In this phase, the development team visits the

customer and studies their system. They investigate the need for possible software

automation in the given system. By the end of the feasibility study, the team furnishes a

document that holds the different specific recommendations for the candidate system. It

also includes the personnel assignments, costs, project schedule, and target dates. The

requirements gathering process is intensified and focused specially on software. To

understand the nature of the program(s) to be built, the system engineer ("analyst") must

understand the information domain for the software, as well as required function,

behavior, performance and interfacing. The essential purpose of this phase is to find the

need and to define the problem that needs to be solved.


10/85

10

System Analysis and Design

In this phase, the software development process, the software's overall structure and its

nuances are defined. In terms of the client/server technology, the number of tiers needed

for the package architecture, the database design, the data structure design etc are all

defined in this phase. A software development model is created. Analysis and Design are

very crucial in the whole development cycle. Any glitch in the design phase could be

very expensive to solve in the later stage of the software development. Much care is taken

during this phase. The logical system of the product is developed in this phase.

Code generation

The design must be translated into a machine-readable form. The code generation step

performs this task. If the design is performed in a detailed manner, code generation can

be accomplished without much complication. Programming tools like Compilers,

Interpreters, and Debuggers are used to generate the code. Different high level

programming languages like C, C++, Pascal, and Java are used for coding. With respect

to the type of application, the right programming language is chosen.

Testing

Once the code is generated, the software program testing begins. Different testing

methodologies are available to unravel the bugs that were committed during the previous

phases. Different testing tools and methodologies are already available. Some companies

build their own testing tools that are tailor made for their own development operations.

Maintenance


11/85

11

Software will definitely undergo change once it is delivered to the customer. There are

many reasons for the change. Change could happen because of some unexpected input

values into the system. In addition, the changes in the system could directly affect the

software operations. The software should be developed to accommodate changes that

could happen during the post implementation period.


12/85

12

INTRODUCTION TO LANGUAGE

JAVA


13/85

13

INTRODUCTION TO LANGUAGE

JAVA

TECHNOLOGY USED:

The strength of any project depends upon the technology on which the project is based.

Today we are living in a world where technologies related to information technology areevolving every day, new technologies are taking an edge over the older ones. Every new

technology provides some new benefits, but only small part of them remains in thecompetitive world. JAVA is the latest technology, which is in use nowadays and has

proved to be the most reliable development framework.

ABOUT JAVA:

Java technology is both a programming language and a platform.The Java programming language is a high-level language that can be characterized by allof the following buzzwords:

Simple Architecture neutral

Object oriented Portable

Distributed High performance

Multithreaded Robust

Dynamic Secure

In the Java programming language, all source code is first written in plain text filesending with the .java extension. Those source files are then compiled into .class files by

the javac compiler. A .class file does not contain code that is native to your processor; itinstead contains bytecodes the machine language of the Java Virtual Machine1 (Java

VM). The java launcher tool then runs your application with an instance of the JavaVirtual Machine.
http://java.sun.com/docs/books/tutorial/getStarted/intro/definition.html#FOOT#FOOThttp://java.sun.com/docs/books/tutorial/getStarted/intro/definition.html#FOOT#FOOT


14/85

14

The JAVA PlatformA platform is the hardware or software environment in which a program runs. The Java

platform differs from most other platforms in that it's a software-only platform that runson top of other hardware-based platforms.

The Java platform has two components:

The Java Virtual Machine.

The Java Application Programming Interface (API).

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

platform. Every full implementation of the Java platform gives you the followingfeatures:

Development Tools: The development tools provide everything you'll need forcompiling, running, monitoring, debugging, and documenting your applications. As anew developer, the main tools you'll be using are the javac compiler, the java launcher,

and the javadoc documentation tool.

Application Programming Interface (API):The API provides the core functionality ofthe 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 andsecurity.

User Interface Toolkits: The Swing and Java 2D toolkits make it possible to create

sophisticated Graphical User Interfaces (GUIs).

Class Thread: A thread is a thread of execution in a program. The Java Virtual Machineallows an application to have multiple threads of execution running concurrently. Every

thread has a priority. Threads with higher priority are executed in preference to threadswith lower priority. When code


15/85

15


16/85

16

PROJECT DESIGN


17/85

17

PROJECT DESIGN

Dialog Box for Student Name.


18/85

18


19/85

19


20/85

20

ER DIAGRAM


21/85

21

PROJECT CODING


22/85

22

PROJECT CODING

import java.awt. *;

import java.awt. event.*;

import javax.swing.*;

class QuestionSeries

{

static String info ="Java Online Test Week \n \nINSTRUCTIONS:\nThere are 25

questions in this test and 10 minutes to complete them all.\nThe finish button is

highlighted in blue when you reach the end of the test. \nClicking the finish button will

display the results with the correct answers marked in light red. \n \nThe timecounter

begins when you click on the 'start' button \n \nBest of luck!\n";

static String []question =

{"Question 1:\nWhat is the result of attempting to compile and run the following

program?\n\npublic class JavaAppclass{\npublic static void main(String args){\n String

myString = \"javaprograms\";\n System.out.println(myString);\n }\n}\n",

"Question 2:\nWhat is the result of attempting to compile and run the following programwith \n\n>javac JavaApp.java\n>java JavaApp\n\nclass TryFirst{\n String myString =

\"javatest\";\n}\n\nclass JavaApp{\n\npublic static void main(String[] arg){\n

System.out.println(new TryFirst().myString);\n}\n}\n",


23/85

23

"Question 3: \nWhat is the result of attempting to compile and run the following

program with \n>javac JavaApp.java\n>java JavaApp\n\nclass MyJavaApp{ \n String

myString = \"elephants\"; \npublic static void main(String[] arg){ \n

System.out.println(myString); \n } \n}\n",

"Question 4:\nWhat is the result?\n\nclass JavaApp{ \n public static void main(String[]

a){ \n String textstr = \"hello\";\n for (int i=4; i


24/85


25/85

25

"Question 17:\nWhat is the result of this program?\n\nclass MyJavaApp{ \n public static

void main(String[] arg){\n int Num1 = 5;\n int Num2 = 4;\n double d =1.25

+Num1/Num2;\n System.out.println(d); \n } \n}\n",

"Question 18:\nWhat is the result of this program?\n\nclass TryJavaApp{ \n static float

f;\n public static void main(String[] ar){\n int Number = 5;\n f = 1.25; \n

System.out.println(f*4); \n } \n}\n",

"Question 19:\nWhat is the result of this program?\n\nclass JavaApp{ \n static float f;\n

public static void main(String[] ar){\n int Num = 2;\n f = (float)1.25 * 2; \n

System.out.println(f * Num); \n } \n}\n",

"Question 20:\nWhat is the result of this program?\n\nclass HelloJavaApp{ \n public

static void main(String[] ar){\n byte num = 64;\n num += num;\n

System.out.println(num); \n } \n}\n",

"Question 21:\nWhat is the result of this program?\n\nclass JavaApp{ \n public static

void main(String[] a){\n double d = 1.56789;\n long num = Math.round(d);\n



void main(String[] a){\n double d = 1.56789;\n int num = (int)Math.round(d * d);\n


"Question 23:\nWhat is the result of this program?\n\nclass MyJavaApp{\npublic static

void main(String[] arg){\n double doub1 = 1.51;\n int number1 = (int) (doub1

+0.5);\n System.out.println(number1); \n double doub2 = -1.51;\n int number2 =

(int) (doub2 +0.5);\n System.out.println(number2); \n } \n}\n",


26/85

26

"Question 24:\nWhat is the result of this program?\n\nclass TryApp{ \npublic static void

main(String[] arg){\n int num = 4;\n num = (num + 4/2) % num+1;\n


"Question 25:\nWhat is the result?\n\nclass MyApp{ \n public static void main(String[]

ar){\n for(int i=0; ijava JavaApp\n","The program is

fine, but we will need another program to run it and get the output.\n","It will compile

and run and output \"java\" to the screen\n"},

{"It will not compile as you cannot have 2 java source files on the same page\n"," \nIt

will output \"javatest","It will not compile as the String myString is not-static and it is

being accessed from a static method\n"," \nIt compiles but there is no output at

runtime\n"},

{" \nFine - it will output elephants\n","Runtime error MyJavaApp is not

public\n","Compiler error myString is a non-static variable being accessed in a static

method\n","Compile error in the main() method\n"},

{" \nIt will output hello\n","The out put will be \nhello\nhello\n"," \nNo output the for

loop needs a ' ; ' at the end\n"," \nCompilation error for loops have to start with a

zero\n"},

{" \n3\n"," \n6\n"," \n4\n"," \n2\n"},

{" \n17\n"," \n5\n"," \n3\n","It won't compile\n"},

{" \n14\n"," \n7\n"," \n17\n"," \nError.\n"},

{" \n16\n"," \n14\n"," \n7\n"," \nError\n"},

{" \n15\n"," \n23\n"," \n50\n"," \nError\n"},


27/85

27

{" \n1\n"," \nYou cannot predict the random result\n"," \n0\n"," \nError\n"},

{" \n6\n"," \n5\n"," \n0\n"," \nError\n"},

{" \n4\n"," \n3\n"," \n0\n"," \nError\n"},

{" \n00001010\n"," \n10\n"," \n1010\n"," \nError\n"},

{"hello java world\n"," \nhello\n"," \njava\n"," \nworld\n"},

{" \n1.75\n"," \n2\n"," \n3\n"," \nError\n"},

{" \n3.25\n"," \n2.25\n"," \n2.2... and a very long number\n"," \nThe code will not

compile\n"},

{" \n2.5\n"," \n2.25\n"," \n2.2 ... -something and a very long number\n"," \nThe code will

not compile\n"},

{" \nError float f is not initialised\n"," \noutput: 5\n"," \noutput: 5.0\n"," \nError, this is

not a valid way to initialise a float type variable\n"},

{" \n4.0\n"," \n5\n"," \n5.0\n"," \nError, it will not compile\n"},

{" \n128\n"," \n-128\n"," \n1\n"," \nError, number is out of range\n"},

{" \n1\n"," \n2\n"," \n1.0\n"," \nError\n"},

{"3. - and to 15 decimal places\n"," \n2\n"," \n3\n"," \nError\n"},

{" 2 \n-2\n"," 1\n-2\n"," 2\n-1\n"," 1\n-1\n"},

{" \n1\n"," \n3\n"," \n4\n"," \n6\n"},

{"1,2,2,3,3,4\n","1,2,3,3,4,6\n","1,2,3,4\n"," \n0,1,1,2,2,3,3,4\n"}

};

static int [] n = {2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 ,1,1};

Static string []choice={"23","2","3","1","1","4","4","3","4","3","4","1",

"3","3","4","4","2","4","3","2","2","3","3","2","1"};

static int tally = choice.length;

static String testtitle="Java Programming Online Test";

static int timeLimit =10;

static int passMark = 15;


28/85

28

}

/* OnlineTest class */

public class Main extends JFrame{

static String studentname ="";

static int TOTAL=0;

static {

try{

TOTAL = QuestionSeries.tally;

/* The input window */

studentname = JOptionPane.showInputDialog("Enter your name: ");

if (studentname.length() < 1)

studentname = "Anonymous ";

else

studentname = studentname.trim() + " ";

}

catch(NullPointerException e){ System.exit(0); }

}


29/85

29

int seconds, minutes;

int quesnum, itemCheck, mark;

final String TESTTITLE = QuestionSeries.testtitle;

final int TIMELIMIT = QuestionSeries.timeLimit;

final int PASS = QuestionSeries.passMark;

String []answers = new String[TOTAL];

JButton []choice_button = new JButton[6];

JTextArea answerboxes[] = new JTextArea[4];

JCheckBox []boxes = new JCheckBox[4];

JTextPane pane = new JTextPane();

JLabel student, choose, message, timecounter, testresult;

boolean start_test, check_answer, allowRestart, finishtest;

Northwindow panelNorth = new Northwindow();

Southwindow panelSouth = new Southwindow();

Centerwindow panelCenter = new Centerwindow();

/* OnlineTest Constructor */

protected Main(){

for (int i=0; i


30/85

30

setSize(width,height);

Dimension dim = java.awt.Toolkit.getDefaultToolkit().getScreenSize();

setLocation((dim.width-width)/2, (dim.height-height)/2);

}

/**** Northwindow class**/

class Northwindow extends JPanel

{

/**** Northwindow constructor **/

public Northwindow()

{


31/85

31

setLayout(new GridLayout(2,2));

setBackground(new Color(230, 230, 255));

student = new JLabel("\t Welcome : "+studentname+" to the Online Java

Test");

student.setFont(new Font("",Font.BOLD,16) );

message = new JLabel();

message.setForeground(Color.blue);

add(student);

add(message);

add(new JLabel(" ") );


setBorder(BorderFactory.createEtchedBorder() );

}

}

/**** Southwindow class **/

class Southwindow extends JPanel

{

public Southwindow()

{

String []key = {"","start:","next:","finish:","check next:","check previous:"};

for(int i=0; i


32/85

32

}

}

/**** Centerwindow class **/

class Centerwindow extends JPanel

{

public Centerwindow()

{

setLayout(new GridLayout(1,2) );

JScrollPane west = new JScrollPane(pane);

pane.setForeground(Color.red);

pane.setFont(new Font ("monospaced",0,12) );

pane.setText(QuestionSeries.info);

pane.setEditable(false);

JPanel east = new JPanel();

east.setLayout(new BorderLayout() );

JPanel northEast = new JPanel();

northEast.setBackground(new Color(230, 230, 255) );

east.add("North", northEast);

JPanel westEast = new JPanel();

westEast.setLayout(new GridLayout(6,1) );

east.add("West", westEast);

JPanel centerEast = new JPanel();

centerEast.setLayout(new GridLayout(6,1) );

centerEast.setBackground(new Color(255,255,200));

east.add("Center", centerEast);

timecounter = new JLabel(" There are "+TOTAL+" questions in total");

timecounter.setFont(new Font ("Arial",Font.BOLD,16) );


33/85


34/85

34

testresult = new JLabel(studentname+", You have only : "+TIMELIMIT+"

minutes to complete.");

else

testresult = new JLabel(" There is no time limit for this test");

testresult.setBorder(BorderFactory.createEtchedBorder() );

centerEast.add(testresult);

add(west);

add(east);

}

}

/**** ActionHandler class to handle all the action events from the buttons. **/

class ActionHandler implements ActionListener{

/* actionPerformed method */

public void actionPerformed(ActionEvent evt){

String source = evt.getActionCommand();

If (source.equals("start:"))

{

choice_button[1].setVisible(false);

start_test=true;

allowRestart=true;

if (TIMELIMIT >0)new Timer(); // inner Timer class

panelSouth.remove(choice_button[1]); //start

displayquestion();

}


35/85

35

If (start_test)

{

If (source.equals("previous:"))

{

recordanswer();

quesnum--;

if (quesnum == -1)

quesnum=TOTAL-1;

checkteststatus();

displayquestion();

}

If (source.equals("next:"))

{

Recordanswer ();

Quesnum++;

if(quesnum == TOTAL-1) finishtest=true;

if(quesnum == TOTAL) quesnum=0;

checkteststatus();

displayquestion();

}

If (source.equals("finish:"))

{

if (finishtest)

{

recordanswer();

quesnum = 0;

choice_button[4].setBackground(Color.lightGray);

timecounter.setForeground(Color.blue);


36/85

36

timecounter.setFont(new Font ("Arial",0,14) );

start_test=false;

check_answer=true;

panelSouth.add(choice_button[0]);

mark_ques();

displayquestion();

checkteststatus();

calculateResult();

}

Else

JOptionPane.showMessageDialog(null,"Cycle through all questions

before pressing finish",

"User Message",JOptionPane.INFORMATION_MESSAGE);

}

}

if (check_answer)

{

if (source.equals("check next:"))

{

quesnum++;


mark_ques();

displayquestion();

checkteststatus();

}

if(source.equals("check previous:"))


37/85

37

{

quesnum--;

if(quesnum == -1) quesnum=TOTAL-1;

mark_ques();

displayquestion();

checkteststatus();

}

}

validate();

}

/* Timer class */

class Timer extends Thread implements Runnable

{

public Timer()

{

new Thread(this).start();

}

public void run()

{

while(start_test)

{

try {

Thread.sleep(1000);

seconds++;

if (seconds % 60 == 0 && seconds != 0)

{ seconds = 60;


38/85

38

minutes++;

}

timecounter.setText ("Time Counter: "+minutes+" mins : "+seconds+" secs ");

if (minutes==TIMELIMIT)

{ start_test=false;

endTest();

}

}

catch(InterruptedException ex) { System.out.print(ex); }

}

}

}

/* checkteststatus method */

public void checkteststatus()

{

if [( quesnum == TOTAL-1)&&

(start_test))choice_button[3].setBackground(Color.green)];

Else


if (answers[quesnum].length() >0)

{

for(int i=0; i


39/85

39

boxes[i].setSelected(false);

}

/* displayquestion method */

public void displayquestion()

{

int j = quesnum+1;

pane.setText(QuestionSeries.question[quesnum]);

if (start_test)message.setText("Question "+j+" out of "+TOTAL);

for (int i=0; i


40/85

40

temp="

ALL are true true";

choose.setText(temp);

}

Else

{

timecounter.setText(" Your choices are shown in the boxes");

choose.setText(" Correct answers are marked in light red.");

}

}

/* record answer method */

public void recordanswer(){

String tmp = "";

For (int i=0; i


41/85


42/85

42

public void calculateResult()

{

mark=0;

double temp=0.0;

java.text.DecimalFormat df = new java.text.DecimalFormat("#0.#");

for (int i=0; i=PASS)

testresult.setText(" Well done "+studentname.substring(0,

studentname.indexOf(' ') )+", you passed");

else

testresult.setText("Better luck next time "

+studentname.substring(0,studentname.indexOf(' ') ) );

student.setText(" Final score for "+studentname+": "+mark+" out of

"+TOTAL+": "+df.format(temp/TOTAL*100)+"%");

new Resultwindow().show();

}

}

/* Resultwindow class */

class Resultwindow extends JFrame{

Resultwindow() {

super( studentname+" results: " +(mark*100/TOTAL >=PASS?"PASS":"FAIL") );

Container cont = getContentPane();

cont.setLayout(new GridLayout(TOTAL/2+3,5,2,5) );


43/85


44/85

44

"There is only "+QuestionSeries.n[quesnum]+" possible
answer to question

"+(quesnum+1)+

"","User Information

Message",JOptionPane.INFORMATION_MESSAGE);

else JOptionPane.showMessageDialog(null,""+

"There are only "+QuestionSeries.n[quesnum]+" possible
answers to

question "+(quesnum+1)+



}

itemCheck=0;

}

}

}


45/85

45

/* main method */

public static void main(String [] args)

{

Main frame = new Main();

frame.setTitle(" "+QuestionSeries.testtitle);

frame.setDefaultCloseOperation( EXIT_ON_CLOSE );

frame.setVisible(true);

}

}


46/85

46

PROJECT ONLINE TEST

package onlinetest;

/import java.awt. *;

import java.awt. event.*;

import javax.swing.*;

class QuestionSeries

{

static String info ="Java Online Test Week \n \nINSTRUCTIONS:\nThere are 25

questions in this test and 10 minutes to complete them all.\nThe finish button is

highlighted in blue when you reach the end of the test. \nClicking the finish button will

display the results with the correct answers marked in light red. \n \nThe timecounter

begins when you click on the 'start' button \n \nBest of luck!\n";

static String []question ={"Question 1:\nWhat is the result of attempting to compile and

run the following program?\n\npublic class JavaAppclass{\npublic static void

main(String args){\n String myString = \"javaprograms\";\n

System.out.println(myString);\n }\n}\n",


47/85

47

"Question 2:\nWhat is the result of attempting to compile and run the following program

with \n\n>javac JavaApp.java\n>java JavaApp\n\nclass TryFirst{\n String myString =

\"javatest\";\n}\n\nclass JavaApp{\n\npublic static void main(String[] arg){\n

System.out.println(new TryFirst().myString);\n}\n}\n",

"Question 3: \nWhat is the result of attempting to compile and run the following

program with \n>javac JavaApp.java\n>java JavaApp\n\nclass MyJavaApp{ \n String

myString = \"elephants\"; \npublic static void main(String[] arg){ \n

System.out.println(myString); \n } \n}\n",

"Question 4:\nWhat is the result?\n\nclass JavaApp{ \n public static void main(String[]

a){ \n String textstr = \"hello\";\n for (int i=4; i


48/85

48

"Question 8:\nWhat is the result?\n\nclass JavaApp{ \n static int number1 = 4;\n public

static void main(String[] a){ \n number1=2;\n int number2 = 7;\n number2=

number1 * 2 +3;\n System.out.println(number2); \n } \n}\n",

"Question 9:\nWhat is the result?\n\nclass JavaApp{ \n static int number1 = 3;\n public

static void main(String[] arg)\n int number2 = 7;\n number2= number2 + number1 * 2

+3;\n System.out.println(number2); \n } \n}\n",

"Question 10:\nWhat is the result of compiling and running the following code?\n\nclass

JavaApp{ \n public static void main(String[] a){\n int x = (int) (Math.random());\n

System.out.println(x); \n } \n}\n",

"Question 11:\nWhat is the result?\n\nclass Tryclass{ \n static String text = \"rabbit\";\n

public static void main(String[] a){\n int num = text.length;\n


"Question 12:\nWhat would be the result here?\n\nclass Myclass{ \n public static void

main(String[] a){\n char []rabbit={'a','b','c','d'};\n int num = rabbit.length;\n


"Question 13:\nWhat is the result here?\n\nclass JavaApp{ \n public static void

main(String[] a){\n int number = 10;\n String mystr =

Integer.toBinaryString(number);\n System.out.println(mystr); \n } \n}\n",

"Question 14:\nWhat would be the result if we were to run this program with\n>java

MyJavaApp hello java world ?\n\nclass MyJavaApp{ \npublic static void main(String[]

args){\n System.out.println(args[1]); \n } \n}\n",


49/85

49

"Question 15:\nWhat is the result of this program?\n\nclass MyJavaApp{ \n public

static void main(String[] a){\n double d =1.75;\n int i = d;\n

System.out.println(i++); \n } \n}\n",

"Question 16:\nWhat is the result of this program?\n\nclass MyJavaApp{ \n public

static void main(String[] a){\n int 1stNum = 5;\n int 2ndNum = 3;\n double d =1.25

+1stNum/2ndNum;\n System.out.println(d); \n } \n}\n",

"Question 17:\nWhat is the result of this program?\n\nclass MyJavaApp{ \n public static

void main(String[] arg){\n int Num1 = 5;\n int Num2 = 4;\n double d =1.25

+Num1/Num2;\n System.out.println(d); \n } \n}\n",

"Question 18:\nWhat is the result of this program?\n\nclass TryJavaApp{ \n static float

f;\n public static void main(String[] ar){\n int Number = 5;\n f = 1.25; \n

System.out.println(f*4); \n } \n}\n",

"Question 19:\nWhat is the result of this program?\n\nclass JavaApp{ \n static float f;\n

public static void main(String[] ar){\n int Num = 2;\n f = (float)1.25 * 2; \n

System.out.println(f * Num); \n } \n}\n",

"Question 20:\nWhat is the result of this program?\n\nclass HelloJavaApp{ \n public

static void main(String[] ar){\n byte num = 64;\n num += num;\n



void main(String[] a){\n double d = 1.56789;\n long num = Math.round(d);\n



50/85

50


void main(String[] a){\n double d = 1.56789;\n int num = (int)Math.round(d * d);\n


"Question 23:\nWhat is the result of this program?\n\nclass MyJavaApp{\npublic static

void main(String[] arg){\n double doub1 = 1.51;\n int number1 = (int) (doub1

+0.5);\n System.out.println(number1); \n double doub2 = -1.51;\n int number2 =

(int) (doub2 +0.5);\n System.out.println(number2); \n } \n}\n",

"Question 24:\nWhat is the result of this program?\n\nclass TryApp{ \npublic static void

main(String[] arg){\n int num = 4;\n num = (num + 4/2) % num+1;\n


"Question 25:\nWhat is the result?\n\nclass MyApp{ \n public static void main(String[]

ar){\n for(int i=0; i


51/85

51

static String [][]answers ={{"It will not compile as the main method String is not an

array\n","It will compile but there will be a runtime error if we try to run it with:- \n>java

JavaApp\n","The program is fine, but we will need another program to run it and get the

output.\n","It will compile and run and output \"java\" to the screen\n"},{"It will not

compile as you cannot have 2 java source files on the same page\n"," \nIt will output

\"javatest","It will not compile as the String myString is not-static and it is being accessed

from a static method\n"," \nIt compiles but there is no output at runtime\n"},{" \nFine - it

will output elephants\n","Runtime error MyJavaApp is not public\n","Compiler error

myString is a non-static variable being accessed in a static method\n","Compile error in

the main() method\n"},{" \nIt will output hello\n","The out put will be

\nhello\nhello\n"," \nNo output the for loop needs a ' ; ' at the end\n"," \nCompilation

error for loops have to start with a zero\n"},{" \n3\n"," \n6\n"," \n4\n"," \n2\n"},{"

\n17\n"," \n5\n"," \n3\n","It won't compile\n"},{" \n14\n"," \n7\n"," \n17\n","

\nError.\n"},{" \n16\n"," \n14\n"," \n7\n"," \nError\n"},{" \n15\n"," \n23\n"," \n50\n","

\nError\n"},{" \n1\n"," \nYou cannot predict the random result\n"," \n0\n","

\nError\n"},{" \n6\n"," \n5\n"," \n0\n"," \nError\n"},{" \n4\n"," \n3\n"," \n0\n","

\nError\n"},{" \n00001010\n"," \n10\n"," \n1010\n"," \nError\n"},{"hello java world\n","

\nhello\n"," \njava\n"," \nworld\n"},{" \n1.75\n"," \n2\n"," \n3\n"," \nError\n"},{"

\n3.25\n"," \n2.25\n"," \n2.2... and a very long number\n"," \nThe code will not

compile\n"},{" \n2.5\n"," \n2.25\n"," \n2.2 ... -something and a very long number\n","

\nThe code will not compile\n"},{" \nError float f is not initialised\n"," \noutput: 5\n","


52/85

52

\noutput: 5.0\n"," \nError, this is not a valid way to initialise a float type variable\n"},{"

\n4.0\n"," \n5\n"," \n5.0\n"," \nError, it will not compile\n"},{" \n128\n"," \n-128\n","

\n1\n"," \nError, number is out of range\n"},{" \n1\n"," \n2\n"," \n1.0\n","

\nError\n"},{"3. - and to 15 decimal places\n"," \n2\n"," \n3\n"," \nError\n"},{" 2 \n-

2\n"," 1\n-2\n"," 2\n-1\n"," 1\n-1\n"},{" \n1\n"," \n3\n"," \n4\n","

\n6\n"},{"1,2,2,3,3,4\n","1,2,3,3,4,6\n","1,2,3,4\n"," \n0,1,1,2,2,3,3,4\n"} };

static int []n = {2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};

static String []choice=

{"23","2","3","1","1","4","4","3","4","3","4","1","3","3","4","4","2","4","3","2","2","3","

3","2","1"};

static int tally = choice.length;

static String testtitle="Java Programming Online Test";

static int timeLimit =10;

static int passMark = 15;

}

/* OnlineTest class */

public class Main extends JFrame{

static String studentname ="";


53/85

53

static int TOTAL=0;

static {

try{

TOTAL = QuestionSeries.tally;

/* The input window */

studentname = JOptionPane.showInputDialog("Enter your name: ");

if(studentname.length() < 1) studentname = "Anonymous ";

else studentname = studentname.trim() + " ";

}catch(NullPointerException e){ System.exit(0); }

}

int seconds, minutes;

int quesnum, itemCheck, mark;

final String TESTTITLE = QuestionSeries.testtitle;

final int TIMELIMIT = QuestionSeries.timeLimit;

final int PASS = QuestionSeries.passMark;

String []answers = new String[TOTAL];

JButton []choice_button = new JButton[6];

JTextArea answerboxes[] = new JTextArea[4];

JCheckBox []boxes = new JCheckBox[4];


54/85

54

JTextPane pane = new JTextPane();

JLabel student, choose, message, timecounter, testresult;

boolean start_test, check_answer, allowRestart, finishtest;

Northwindow panelNorth = new Northwindow();

Southwindow panelSouth = new Southwindow();

Centerwindow panelCenter = new Centerwindow();

/* OnlineTest Constructor */

protected Main(){

for (int i=0; i


55/85

55

setLocation((dim.width-width)/2, (dim.height-height)/2);

}

/**

** Northwindow class

**/

class Northwindow extends JPanel{

/**

** Northwindow constructor

**/

public Northwindow(){

setLayout(new GridLayout(2,2));

setBackground(new Color(230, 230, 255));

student = new JLabel("\t Welcome : "+studentname+" to the Online Java

Test");

student.setFont(new Font("",Font.BOLD,16) );

message = new JLabel();

message.setForeground(Color.blue);

add(student);


56/85

56

add(message);



setBorder(BorderFactory.createEtchedBorder() );

}

}

/**

** Southwindow class

**/

class Southwindow extends JPanel{

public Southwindow(){

String []key = {"","start:","next:","finish:","check next:","check previous:"};

for(int i=0; i


57/85

57

}

/**

** Centerwindow class

**/

class Centerwindow extends JPanel{

public Centerwindow(){

setLayout(new GridLayout(1,2) );

JScrollPane west = new JScrollPane(pane);

pane.setForeground(Color.red);

pane.setFont(new Font ("monospaced",0,12) );

pane.setText(QuestionSeries.info);

pane.setEditable(false);

JPanel east = new JPanel();

east.setLayout(new BorderLayout() );

JPanel northEast = new JPanel();

northEast.setBackground(new Color(230, 230, 255) );

east.add("North", northEast);

JPanel westEast = new JPanel();

westEast.setLayout(new GridLayout(6,1) );


58/85

58

east.add("West", westEast);

JPanel centerEast = new JPanel();

centerEast.setLayout(new GridLayout(6,1) );

centerEast.setBackground(new Color(255,255,200));

east.add("Center", centerEast);

timecounter = new JLabel(" There are "+TOTAL+" questions in

total");

timecounter.setFont(new Font ("Arial",Font.BOLD,16) );

timecounter.setForeground(new Color(0,90,20) );

northEast.add(timecounter);

westEast.add(new JLabel(" "));

String []boxs = {" A ", " B ", " C ", " D "};

for(int i=0; i


59/85

59

JScrollPane panes[] = new JScrollPane[4];

for(int i=0; i0)testresult = new JLabel(studentname+", You have only :

"+TIMELIMIT+" minutes to complete.");

else testresult = new JLabel(" There is no time limit for this test");

testresult.setBorder(BorderFactory.createEtchedBorder() );

centerEast.add(testresult);

add(west);

add(east);

}

}


60/85

60

/**

** ActionHandler class to handle all the action events from the buttons.

**/

class ActionHandler implements ActionListener{

/* actionPerformed method */

public void actionPerformed(ActionEvent evt){

String source = evt.getActionCommand();

if(source.equals("start:")){

choice_button[1].setVisible(false);

start_test=true;

allowRestart=true;

if(TIMELIMIT >0)new Timer(); // inner Timer class

panelSouth.remove(choice_button[1]); //start

displayquestion();

}

if(start_test){

if(source.equals("previous:")) {

recordanswer();

quesnum--;


checkteststatus();

displayquestion();

}

if(source.equals("next:")) {

recordanswer();


61/85

61

quesnum++;

if(quesnum == TOTAL-1) finishtest=true;


checkteststatus();

displayquestion();

}

if(source.equals("finish:")) {

if (finishtest){

recordanswer();

quesnum = 0;


timecounter.setForeground(Color.blue);

timecounter.setFont(new Font ("Arial",0,14) );

start_test=false;

check_answer=true;

panelSouth.add(choice_button[0]);

mark_ques();

displayquestion();

checkteststatus();

calculateResult();

}

else JOptionPane.showMessageDialog(null,"Cycle through all

questions before pressing finish",

"User Message",JOptionPane.INFORMATION_MESSAGE);

}

}


62/85

62

if (check_answer){

if(source.equals("check next:")) {

quesnum++;


mark_ques();

displayquestion();

checkteststatus();

}

if(source.equals("check previous:")) {

quesnum--;


mark_ques();

displayquestion();

checkteststatus();

}

}

validate();

}

/* Timer class */

class Timer extends Thread implements Runnable{

public Timer(){

new Thread(this).start();

}

public void run() {


63/85


64/85

64

boxes[Integer.parseInt(answers[quesnum].substring(i,i+1) )-

1].setSelected (true);

}

else for(int i=0; i


65/85

65

}

else {

timecounter.setText(" Your choices are shown in the boxes");

choose.setText(" Correct answers are marked in light red.");

}

}

/* record answer method */

public void recordanswer(){

String tmp = "";

for(int i=0; i


66/85

66

public void mark_ques(){

for(int i=0; i


67/85

67

student.setText(" Final score for "+studentname+": "+mark+" out of

"+TOTAL+": "+df.format(temp/TOTAL*100)+"%");

new Resultwindow().show();

}

}

/* Resultwindow class */

class Resultwindow extends JFrame{

Resultwindow() {

super( studentname+" results: " +(mark*100/TOTAL >=PASS?"PASS":"FAIL") );

Container cont = getContentPane();

cont.setLayout(new GridLayout(TOTAL/2+3,5,2,5) );

cont.setBackground(new Color(255,220,255) );

cont.add(new JLabel(" "+"Marks: "+mark+"/"+TOTAL+": "+"Percentage:

"+(mark*100/TOTAL)+"%") );

for(int i=0; i


68/85

68

}

for(int i=0; i


69/85

69



else JOptionPane.showMessageDialog(null,""+

"There are only "+QuestionSeries.n[quesnum]+" possible
answers to

question "+(quesnum+1)+



}

itemCheck=0;

}

}

}


70/85

70

/* main method */

public static void main(String [] args){

Main frame = new Main();

frame.setTitle(" "+QuestionSeries.testtitle);

frame.setDefaultCloseOperation( EXIT_ON_CLOSE );

frame.setVisible(true);

} }


71/85

71

FLOW CHART


72/85

72

FLOW CHART


73/85

73

FLOW CHART


74/85

74

FLOW CHART


75/85

75

FLOW CHART


76/85

76

PROJECT TESTING


77/85

77

PROJECT TESTING

The basic purpose of the testing phase is to detect the errors that may be present in the

program. However often the aim of testing is to demonstrate that a program works by

showing that it has no errors, this is opposite of what testing should be viewed as .So

testing can be defined as:

TESTING IS THE PROCESS OF EXECUTING A PROGRAM WITH THE INTENT

OF FINDING ERRORS.

Testing is the process of executing a program/system with the intent of finding errors.

The emphasis is on the deliberate intent of finding errors. This is quite different to simply

proving that a program or system works. The fundamental purpose of software testing is

to find problems in the software so that they can be fixed, resulting in code that is more

reliable, stable and more closely matches what the real end-user wants.

Each test report is in the form of a java source file, split into three sections:

1. A summary of the test (date, tester, etc)

2. Test code

3.

Actual test results


78/85

78

Therefore each report will have the standard header, and will be self contained and

complete. Software testing is the process of testing the software product. Effective

software testing will contribute to the delivery of higher quality software products ,more

satisfied users ,and lowers maintainance costs ,more accurate and reliable results.

However ,ineffective testing will lead to the opposite results .It is a very expensive

process and consumes one third to one-half of the cost of a typical development project.

The testing of newly developed software , prior to its actual use ,is a commonly followed

practice. It is the process of executing program (or a part of program) with the intention

of finding errors. However, testing cannot show the absence of errors it can only show

that errors are present.


79/85

79

ER DIAGRAM


80/85

80

1. UNIT TESTING:

The starting point of testing is unit testing. Unit testing is the process of taking a module

and running it in isolation from the rest of the software product by using prepared test

cases and comparing the actual results with the results predicted by the specification and

design of the module. The purpose of this phase (also called the implementation phase) of

software development is to translate the software design in to source code. During the

implementation phase ,each component of the design is implemented as a program

module ,and each of these program modules is unit tested (i.e; tested independently as a

stand alone unit),debugged ,and documented .The purpose of unit testing is to determine

the correct working of the individual modules.The end-product of the implementation

phase is a set of program modules that have been individually tested.

2.INTEGRATION TESTING:

Integration testing follows unit testing. It is performed to determine that the interface

between modules is also correct .One specific target of integration testing is the interface:

whether parameters match on both sides as to type ,permissible ranges, meaning and

utilization .During integration testing the focus is on interconnections between various

components.


81/85

81


82/85

82

CONCLUSIONS


83/85

83

Conclusions

This project that I undertook was truly a very rewarding experience for me in

more than one way. It has given a big thrust to my technical knowledge as

prospective Software professional. It has also helped me enhance my skills on

the personal front.

And I feel extremely satisfied by the fact that I have managed to develop the

project of course with equal contribution from my team members. I think I

have exploited the opportunity that came my way to the fullest extent by

increasing my technical know-how and also gaining the valuable work

experience apart from studying the other subjects in our curriculum.


84/85

84

REFERENCES


85/85

References

Complete reference in Java by Patrick Naughton

Complete reference in Java 2 by Herbert Schildt

Programming in Java by E.Balagursamy.

Www. google .com

www.java.co.in
http://www.google/http://www.google/

Ajay Flow Chart

Documents

Transcript of Ajay Flow Chart