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CS8383 –OBJECT ORIENTED LABORATORY

SYLLABUS

COURSE OBJECTIVES

 To build software development skills using java programming for real-world applications.

 To understand and apply the concepts of classes, packages, interfaces, arraylist, exception handling
and file processing.

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 To develop applications using generic programming and event handling.

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LIST OF EXPERIMENTS:

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1. Develop a Java application to generate Electricity bill. Create a class with the following members:

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Consumer no., consumer name, previous month reading, current month reading, type of EB connection
(i.e domestic or commercial). Compute the bill amount using the
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following tariff.
If the type of the EB connection is domestic, calculate the amount to be paid as follows:
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 First 100 units - Rs. 1 per unit

101-200 units - Rs. 2.50 per unit
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
 201 -500 units - Rs. 4 per unit
 > 501 units - Rs. 6 per unit
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If the type of the EB connection is commercial, calculate the amount to be paid as follows:
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 First 100 units - Rs. 2 per unit

 101-200 units - Rs. 4.50 per unit
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 201 -500 units - Rs. 6 per unit

 > 501 units - Rs. 7 per unit
2. Develop a javaL application to implement currency converter (Dollar to INR, EURO to INR, Yen to INR
and vice versa), distance converter (meter to KM, miles to KM and vice versa) , time converter
(hours to minutes, seconds and vice versa) using packages.

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3. Develop a java application with Employee class with Emp_name, Emp_id, Address, Mail_id, Mobile_no
as members. Inherit the classes, Programmer, Assistant Professor, Associate Professor and Professor
from employee class. Add Basic Pay (BP) as the member of all the inherited classes with 97% of BP as
DA, 10 % of BP as HRA, 12% of BP as PF, 0.1% of BP
for staff club fund. Generate pay slips for the employees with their gross and net salary.
4. Design a Java interface for ADT Stack. Implement this interface using array. Provide

necessary exception handling in both the implementations.

5. Write a program to perform string operations using ArrayList. Write functions

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for the following

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a. Append - add at end

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b. Insert – add at particular index

c. Search

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d. List all string starts with given letter

6. Write a Java Program to create an abstract class named Shape that contains two
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integers and an empty method named print Area(). Provide three classes named
Rectangle, Triangle and Circle such that each one of the classes extends the class
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Shape. Each one of the classes contains only the method print Area () that prints the
area of the given shape.
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7. Write a Java program to implement user defined exception handling.

8. Write a Java program that reads a file name from the user, displays information about
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whether the file exists, whether the file is readable, or writable, the type of file and the
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length of the file in bytes.

9. Write a java program that implements a multi-threaded application that has three threads.
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First thread generates a random integer every 1 second and if the value is even, second
thread computes the square of the number and prints. If the value is odd, the third thread
will print the value of cube of the number.

10. Write a java program to find the maximum value from the given type of elements using a
generic function.

11. Design a calculator using event-driven programming paradigm of Java with the
following options.

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a) Decimal manipulations

b) Scientific manipulations

12. Develop a mini project for any application using Java concepts.

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CS8383 – OBJECT ORIENTED PROGRAMMING LABORATORY

INDEX

Sl. No. Name of the Experiment Page No.

1 Electricity Bill Generation 13

2 Currency converter , Distance converter and Time converter 15

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3 Payroll Processing 18

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4 ADT Stack 19
5 String Operations 21

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6 Abstract Class 23
7
8
Exception Handling
File Information
ee 25
27
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9 Multithreading 29
10 Generic Function 31
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11 Calculator 33
12 Mini Project – Vehicle Management System 36
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Ex. No.:1
ELECTRICITY BILL GENERATION
Aim:

To develop a Java application to generate Electricity bill.

Hardware Requirements:

 Pentium IV with 2 GB RAM

 160 GB HARD Disk

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 Monitor 1024 x 768 colour

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Software Requirements:

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 Ubentu 14.04 operating system
 JDK 1.8
Procedure:
ee
gin
1. Start the program
2. Create consumer class with the following members: Consumer no., consumer name,
previous month reading, current month reading, type of EB connection (i.e domestic or
En

commercial).
arn

3.If the type of the EB connection is domestic, calculate the amount to be paid as follows:

 First 100 units - Rs.1 per unit

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 101-200 units - Rs.2.50 per unit

 201 -500 units - Rs. 4 per unit
w.

 > 501 units - Rs.6 per unit

4. If the type of the EB connection is commercial, calculate the amount to be paid as follows:
ww

 First 100 units - Rs. 2 per unit

 101-200 units - Rs. 4.50 per unit
 201 -500 units - Rs. 6 per unit
 > 501 units - Rs. 7 per unit

5. Print the amount

6. Stop the program

13

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Sample output:

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ee
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Result:
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Thus the Electricity Bill Java application was successfully executed.

Outcome:
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Thus the course outcome (CO1) has been attained by generating an Electricity Bill application using
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Java.

Applications :
ww

(1) Payroll Processing

(2) PF Calculation

14

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Ex. No.:2

Currency Converter, Distance Converter and Time Converter

Aim:

To develop a Java application to implement currency converter , distance converter and time converter
using packages.
Hardware Requirements:

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 Pentium IV with 2 GB RAM

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 160 GB HARD Disk

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 Monitor 1024 x 768 colour
Software Requirements:

 ee
Ubentu 14.04 operating system
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 JDK 1.8
Procedure:
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1. Start the program

2. Create three packages for currency converter , distance converter and time converter.
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3. Create corresponding code for conversion

4. Print the converted value.
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5. Stop the program

w.
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15

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Sample output:

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ee
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Result:
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Thus the Java application has been created for currency conversion, distance conversion and time
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conversion and it was successfully executed.

Outcome:
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Thus the course outcome (CO2) has been attained by applying the concept of packages using Java.
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Applications :

(1) Kilogram to gram conversion

(2) Celsius to Fahrenheit conversion

16

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Ex. No.:3
PAYROLL PROCESSING

Aim:

To develop a Java application with employee class and generate pay slips for the employees with their
gross and net salary.

Hardware Requirements:

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 Pentium IV with 2 GB RAM

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 160 GB HARD Disk
 Monitor 1024 x 768 colour

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Software Requirements:


ee
Ubentu 14.04 operating system
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 JDK 1.8
Procedure:
En

1. Start the program

arn

2. Create Employee class with Emp_name, Emp_id, Address, Mail_id, Mobile_no as

members.
3.Inherit the classes, Programmer, Assistant Professor, Associate Professor and Professor
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from employee class.

4.Add Basic Pay (BP) as the member of all the inherited classes with 97% of BP as DA, 10
w.

% of BP as HRA, 12% of BP as PF, 0.1% of BP for staff club fund.

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5. Generate pay slips for the employees with their gross and net salary.
6. Stop the program

17

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Sample output:

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ee
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Result:
arn

Thus the Java application has been created with with employee class and pay slips are generated for
the employees with their gross and net salary.
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Outcome:
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Thus the course outcome (CO1) has been attained by applying the concept of inheritance to
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generate Payroll Processing application using Java.

Applications:

(1) EB Bill Generation

(2) Income Tax Calculation

18

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Ex. No.:4

ADT STACK

Aim

To design a Java interface for ADT Stack using array.

Hardware Requirements:

 Pentium IV with 2 GB RAM

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 160 GB HARD Disk

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 Monitor 1024 x 768 colour

Software Requirements:

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 Ubentu 14.04 operating system
 JDK 1.8
Procedure: ee
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1. Start the program
2. Define the interface.
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3. Read the elements using array.

4. Initialize stackTop pointer as zero,
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5. Define and use the method Push() to insert the elements into the stack with ‘STACK
OVERFLOW’ condition.
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6. Define and use the method pop() to remove an element from an array with ‘STACK
UNDERFLOW’ condition
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7. Display the output.

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Sample output:

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ee
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Result:
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Thus the design and implementation of ADT Stack using array has successfully executed.
arn

Outcome:

Thus the course outcome (CO2) has been attained by applying the concept of array to generate
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ADT Stack using Java.

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Applications:
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(1) ADT Queue

(2) ADT circular queue

20

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Ex. No.:5

STRING OPERATIONS

Aim

To write a program to perform string operations using ArrayList.

Hardware Requirements:

 Pentium IV with 2 GB RAM

 160 GB HARD Disk

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 Monitor 1024 x 768 colour

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Software Requirements:

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 Ubentu 14.04 operating system
 JDK 1.8

Procedure:
ee
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1. Start the program
2. Add the String as an object to List.
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3. Get the choice from the user and do according to the choice
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a. Append-add at end
b. Insert-add at particular index
c. Search
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d. List all string starts with given letter.

3. Display the result
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4. Stop the program.

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Sample output:

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ee
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Result:
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Thus the implementation of string operations using array list has been successfully executed.

Outcome:
arn

Thus the course outcome (CO2) has been attained by applying the concept of arraylist for string
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manipulations using Java.

Applications:
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(1) Reverse of the String.

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(2) String Matching.

(3) Counting the number of vowels and consonants in a line.

22

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Ex. No.:6
ABSTRACT CLASS

Aim

To write a Java Program to create an abstract class named Shape and provide three classes named
Rectangle, Triangle and Circle such that each one of the classes extends the class Shape.

Hardware Requirements:

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 Pentium IV with 2 GB RAM

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 160 GB HARD Disk
 Monitor 1024 x 768 colour

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Software Requirements:


 ee
Ubentu 14.04 operating system
JDK 1.8
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Procedure:
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1. Start the program

2. Define the abstract class shape.
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3. Define the class Rectangle with PrintArea() method that extends(makes use of) Shape.
4. Define the class Triangle with PrintArea() method that extends(makes use of) Shape.
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5. Define the class Circle with PrintArea() method that extends(makes use of) Shape.
6. Print the area of the Rectangle,Triangle and Circle .
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7.Stop the Program.

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Sample output:

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Result:
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Thus the design and implementation of Abstract class has been successfully executed.
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Outcome:
arn

Thus the course outcome (CO2) has been attained by applying the concept of abstract class using
Java.
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Applications:
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(1) Volume of the Cube

(2) Length of the Cube
(3) Area of Triangle
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24

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Ex. No.:7
EXCEPTION HANDLING
Aim

To write a Java program to implement user defined exception handling.

Hardware Requirements:

 Pentium IV with 2 GB RAM

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 160 GB HARD Disk

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 Monitor 1024 x 768 colour

Software Requirements:

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 Ubentu 14.04 operating system
 JDK 1.8
ee
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Procedure:

1. Start the program

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2. Define the exception for getting a number from the user.

3. If the number is positive print the number as such.
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4. If the number is negative throw the exception to the user as ‘Number must be
positive’.
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5. Stop the Program.

w.
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Sample output:

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Result:
ee
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Thus the user defined exception has been successfully implemented.
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Outcome:
arn

Thus the course outcome (CO2) has been attained by applying the concept of Exception handling
for an user defined exception using Java.
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Applications:
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(1) Throwing exception for Checking the @ symbol in Email Id

(2) Throwing exception for password mismatch.

ww

26

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Ex. No.: 8
FILE INFORMATION

Aim

To write a Java program that reads a file name from the user, displays information about whether the file
exists, whether the file is readable, or writable, the type of file and the length of the file in bytes.
Hardware Requirements:

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 Pentium IV with 2 GB RAM

g.i
 160 GB HARD Disk
 Monitor 1024 x 768 colour

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Software Requirements:

 Ubentu 14.04 operating system

 JDK 1.8
Procedure:
ee
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1. Start the program
2. Read the filename from the user.
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3. Use getName() Method to display the filename.

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4. Use getPath() Method to display the path of the file.

5. Use getParent() Method to display its parent’s information.
6. Use exists() Method to display whether the file exist or not
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7. Use isFile() and isDirectory() Methods to display whether the file is file or directory.
8.Use canRead() and canWrite) methods to display whether the file is readable or writable.
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9. Use lastModified() Method to display the modified information.

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10. Use length() method to display the size of the file.

11. Use isHiddden() Method to display whether the file is hidden or not.

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Sample output:

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Result:
ee
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Thus the information of the file has been displayed successfully using various file methods.
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Outcome:
arn

Thus the course outcome (CO1) has been attained y file operations using Java..
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Applications:
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(1) IRCTC chart display (RAC reservation)

(2) A2B menu display
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28

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Ex. No.: 9
MULTITHREADING

Aim

To write a java program that implements a multi-threaded application.

Hardware Requirements:

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 Pentium IV with 2 GB RAM
 160 GB HARD Disk


rin
Monitor 1024 x 768 colour

Software Requirements:

 Ubentu 14.04 operating system ee

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 JDK 1.8

Procedure:
En

1. Start the program

arn

2. Design the first thread that generates a random integer for every 1 second .
3. If the first thread value is even, design the second thread as the square of the number
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and then print it.

4.If the first thread value is odd, then third thread will print the value of cube of the
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number.
5. Stop the program.
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29

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Sample output:

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Result:

Thus the implementation of multithreading has been done using three threads.
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Outcome:
w.

Thus the course outcome (CO2) has been attained by applying the concept of multithreading to
generate odd numbers and its square using Java.
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Applications :

(1) Multiplication Table Printing (3,5,8th table)

(2) Printing Area of the cube, square and circle

30

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Ex. No.: 10
GENERIC FUNCTION
Aim

To write a java program to find the maximum value from the given type of elements using a generic
function.

Hardware Requirements:

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 Pentium IV with 2 GB RAM

g.i
 160 GB HARD Disk
 Monitor 1024 x 768 colour

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Software Requirements:

 Ubentu 14.04 operating system

 JDK 1.8 ee
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Procedure:
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1. Start the program

2. Define the array with the elements
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3. Sets the first value in the array as the current maximum

4. Find the maximum value by comparing each elements of the array
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5. Display the maximum value

6. Stop the program.
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Sample output:

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g.i
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ee
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Result:
arn

Thus the implementation of generic function is achieved for finding the maximum value from the given
type of elements.
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Outcome:
w.

Thus the course outcome (CO3) has been attained by applying the concept of generic function to
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generate maximum value and minimum value. .

Applications:

(1) Finding even values

(2). Finding the sum of values

32

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Ex. No.: 11

CALCULATOR
Aim

To design a calculator using event-driven programming paradigm of Java for Decimal manipulations and
Scientific manipulations.

Hardware Requirements:

n
 Pentium IV with 2 GB RAM

g.i
 160 GB HARD Disk
 Monitor 1024 x 768 colour

rin
Software Requirements:


 ee
Ubentu 14.04 operating system
JDK 1.8
gin
Procedure:
En

1. Start the program

arn

2. Using the swing components design the buttons of the calculator

3. Use key events and key listener to listen the events of the calculator.
4. Do the necessary manipulations.
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5. Stop the program.

w.
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Sample Output:

n
g.i
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ee
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arn
Le
w.

Result:
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Thus the implementation of generic function is achieved for finding the maximum value from the given
type of elements.

Outcome:

Thus the course outcome (CO3) has been attained by applying the concept of event handling to
design calculator using Java.

34

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Applications:

(1) Age calculator

(2) EB calculator

n
g.i
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ee
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Ex. No.: 12
VEHICLE MANAGEMENT SYSTEM

Aim

To design a vehicle management system using Java.

Hardware Requirements:

 Pentium IV with 2 GB RAM

 160 GB HARD Disk

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 Monitor 1024 x 768 colour

g.i
Software Requirements:

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 Ubentu 14.04 operating system
 JDK 1.8
 Notepad
 Internet Explorer 4.0
ee
gin
Procedure:

1. Start the program

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2. Using the swing components design the necessary layout

3. Add the details using JDBC(Java Data Base Connectivity).
arn

4. Get the details of vehicle number, make, Fuel type , Vehicle type ,Insurer ,Rupees per
kilometer , Cost and company from the user
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5. Store it in the database and do the necessary manipulations.

6. Stop the program
w.
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Sample output:

Admin Page

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VEHICLE MANAGEMENT – ADMIN

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Vehicle Details :

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Result:

Thus the design of vehicle management system using Java has been successfully executed.

Outcome:

Thus the course outcome (CO1) has been attained by generating a real world application using
Java.

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MINIPROJECTS

1. Airline Reservation System

2. Mark sheet Preparation system

3. NAAC online application creation

4. Library Management System

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5. Converting RGB image to Gray Image

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6. Health Care System

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7. App development

8. Income Tax System

9. Vehicle Tracking System ee

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10. Ebanking System
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38

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