COLA- 051935_ Java _COM065.docx

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Unit 41-Programming in Java

Assignment Title : Read with us – us – Library Library Management System Assignment no : (Java -16-001)

By

Vagish Kirubaharan

COL/A-051935

Vagish Kirubaharan Read with Us – Programming in Java (JAVA -16-001)

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Task 1 The Principles and Programming in Java 1.

Java is simple

The main features of Java in comparing with other programming languages, languages, it is very simple and easy to learn. Java is the object oriented programming language. As well as Java provides the error free development environment for a programmer because it provides automatic memory management by development environment and it eliminates pointers.

2.

Java is Platform Independent

When it comes to features of java , A specific feature known known as platform platform independence , it means the executable file which programed by java can be run any platform without problem. The main reason for these features is Java virtual machine

3.

Java is Object-oriented

If a programming language wants to be an object oriented that language must support characteristics of the OOPs, there for java is object oriented language. l anguage. In the Java everything is treated as objects to which methods are applied. java is a fully Object Oriented language because object is at the outer most level of data structure in java. No standalone methods, constants, and variables are there in java. Everything in java is object even the primitive data types can also be converted into object by using the wrapper class.

4.

Java is Distributed

It is widely used for file transfer protocols that HTTPS and and FTP are developed in java. Therefor Internet programmers can call functions on these protocols and can get access the files from any remote machine on the internet rather than writing codes on their local s ystem.

5.

Java is Secure

Another attractive feature of java language is, it is secure than other language. Why say java is secure, because java does not use local memory. The program which corded by java run under an area known as the sand box. Security manager determines the accessibility options of a class like reading and writing a file to the local disk. As well as the byte code verifier verifie r checks the classes after loading. Vagish Kirubaharan Read with Us – Programming in Java (JAVA -16-001)

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6.

No memory pointers

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Programs runs inside the virtual machine sandbox.

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Array index limit checking

Java is compiled and interpreted

As we know Java code is compiled to bytecodes that are interpreted by Java virtual machines. This offers portability to any machine for which a virtual machine has been written. The interpreter program reads the source code and tr anslates it on the fly into computations.

7.

Java is Robust

Robust means strong. Why say like that, java uses strong memory management, as well as there are lack of pointers that avoids security problem, and java has their own automatic garbage collection. As well as java has exception handling and type checking mechanism.

8.

Java is Portable

The “write once run anywhere” concept gives the portabilit y for java programming. We may carry the java bytecode to any platform without any problem.

1.2

Java Virtual Machine (JVM) is an abstract machine which provides runtime environment for the java bytecode. In other words, JVM acts as a layer between java application and the underlying platform. As display name, JVM is a virtual machine or processor which communicating with the physical machine. However, they are interacting with each other.

However, the attractive thing is JVM provides the ability to execute the application by ignoring what is the platform, that means JVM provides platform independence ability for the application. It considers as “write once, run an ywhere” concept. Actually, the JVM is a part of Java Runtime Environment (JRE). JVM which run the bytecodes calls class es that in JRE when it needs to perform some actions, as well as JVM manipulates the underlying hardware Vagish Kirubaharan Read with Us – Programming in Java (JAVA -16-001)

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or the operating system to perform some actions. The byte codes want t o minimize their functionality and JVM has to do many tasks for them. The portability of java programs are depend on the JVM and the communication between an application and underlying platform are very sophisticated.

Internal Architecture of JVM


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Task 3 Sequence: Statements are executed in a specified order. Not a statement is skipped and no statement is executed more than once.

Coding sample

Selection: It selects a statement to execute on the basis of the condition. Statement is only executed when the condition is true and ignored when it is false e.g. if, if else, switch structures.


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According to the cord, “if” condition will be true only on the formula “diffInDays” (this a variable in the cord) more than 14, then the if condition will be executed, otherwise it will not be executed.

Repetition In this structure the statements are executed more than one time. It is also known as iteration or loop e.g. while loop, for loop do-while loops etc.


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I used “while loop” to read the result of the query. This “while loop” continuously run until the result of “rs” variable is end.


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For Example

3:4 //what is java error handling

//what are the methods of error handling //what are the method which I used Vagish Kirubaharan Read with Us – Programming in Java (JAVA -16-001)

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//advantages of it 3:5

The Integrated Development An integrated development environment (IDE) which means,the software suite that helps to developers to write and test the software. By the IDE consolidates the basic tools a s developers who can be easy to design the software. Typically, an IDE encloses a code editor, a compiler or interpreter and a debugger, as the developer can accesses through a single graphical user interface (GUI). An IDE may be a standalone application, or it may be included as part of one or more existing and compatible applications. I used “Java NetBeans” as my IDE. NetBeans is a free software that provides by “Oracal” company for the java developers. When we talk about NetBeans, we have to s ay first that it is a user-friendly software, why I say like that, fi rst of all about NetBeans interface, it has been created as doing cording is easy. NetBeans interface has three tab such as, “Source”, “Design” and “History”


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Now let’s see, the facilities by providing NetBeans when we create a software. First, should be mentioned about the “palette”, which provides us the necessary logos and the important tools which we want to create a software. By using these tools, we can create attractive interfaces, only we want to do drag and drop which we want tool into the interface.


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Task 4 4:1 Module no 1 Check “Register” form. 1.1- Register new member with all field correctly fill Test data

- Username = “user”, Password = 1234, ID = mem_9, Position = Member

Expected Result table.

- Display success message and save field data into the “tbl_users”

Actual Result - Expected result happens correctly. Status - True

1.2- insert data with empty field Test data

- Username = “madura”, ID = mem_10

Expected Result correctly”.

- Should be displayed a message call that “Please fill all fields


1.3- Register member again who already registered. Test data

- Username = “user”, Password = 1234, ID = mem_9, Position = Member

Expected Result

- Should be displayed message called “You have already registered”


1.4- check whether can be registered member as librarian. Test data

- Username = “user”, Password = 1234, ID = mem_9, Position = Librarian


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Expected Result of you”

- Should be displayed message called “Please, Enter valid member Id


1.5- when click on “sign in” link Expected Result

- “Login” page should be displayed.


1.6- Register new librarian with all fields. Test data

- Username = “librarian”, Password = 4567, ID = l ib_2, Position = Librarian

Expected Result table.

- Display success message and save field data into the “tbl_users”


Module 2 2 :1 Test data

- Username = “user”, Password = 1234

Expected Result

- Should be displayed “MemberFunctions.java” page directl y.



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2.2- Login with incorrect username and password Test data

- Username = “Sumeda”, ID = mem_101

Expected Result Password”.

-

Should be displayed a message call that “Invalid Username or


1.3- Login with one field correct and other field incorrect Test data

- Username = “Sumeda”, ID = mem_10

Expected Result Password”.

- Should be displayed a message call that “Invalid Username or


1.4- check whether according to the login person the main menu is change. Test data

- Username = “librarian”, Password = 4567

Expected Result

- Should be displayed “LibrarianFunctions.java” page directl y.


Test data

- Username = “user”, Password = 1234

Expected Result

- Should be displayed “MemberFunctions.java” page directl y.



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1.5- when click on “Register” link Expected Result

- Should be displayed “Register” page.


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Module No: 03

Check “Add book” page. 3.1- Check whether “Book Id” auto display when page start Expected Result

- Next “Book Id” auto assign to the “Book ID” field when page start.


3.2- Add book with all fields Test data - Book ID = “”, Book Name = “”, ISBN Number = “”, Author Name = “”, Number of Books = “”, Category = “” Expected Result Should be displayed a message call that “One Book Successfully Inserted” and save that data into “ tbl_book” table. Actual Result - Expected result happens correctly.

Status - True

3.3- Add book with some fields empty Test data

- Book ID = “”, Book Name = “”, Author Name = “”, Category = “”


-

Should be displayed a message call that “Please, fill all fields

Actual Result - Expected result happens correctly. Vagish Kirubaharan Read with Us – Programming in Java (JAVA -16-001)

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Status - True

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Module No: 04

Check “Add Member” page. 4.1- Check whether “Member ID” auto display when page start Expected Result start.

- Next “Member Id” auto assign to the “Member ID” field when page


4.2- Add member with all fields Test data - Member ID = “”, First Name= “”, Last Name = “”, Address = “”, Contact Number = “”. Expected Result Should be displayed a message call that “One member successfully registered” and save that data into “tbl_member” table. Actual Result - Expected result happens correctly. Status - True

4.3- Add book with some fields empty Test data

- Member ID = “”, Last Name = “”, Contact Number = “”.


-

Should be displayed a message call that “Please, fill all fields


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Module No: 05


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Check “Search Books” page. 5.1- Search book by “book Id” Test data

- Search by Book ID or Book Name = book_1

Expected Result

- All fields will fill according to the book of “book_1” details


5.2- Search book by “book Name” Test data

- Search by Book ID or Book Name = sulaga

Expected Result

-

All fields will fill according to the book of “sulaga” details.


5.3- Check “reserve” button Test data

- When click on “Reserve” button.

Expected Result The book which is on display can be able to reserved by member, and should be displayed a message called “Reserved Successfull y”. Actual Result - Expected result happens correctly. Status - True

Test ID 1.1

Description Insert all field correctly


Test Data Username = “mdura” Password = 123

Expected Result Display message and save that data into “tbl_users” table

Status True

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1.2

Incorrect user name and correct password

User name = “Admin” Password = 1234

“tbl_users” table Display “incorrect user name or password ”

Go to the main menu

Fail

4:3 1 : How are you satisfied with this system 2: Is the system easy to use? 3: Is this system easy to install in your device or server? 4: How do you recommend this software to others?

FUTURE RECOMMENDATION

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We can add more secure encryption passwords for this system

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It is better if we use database for storing student details

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Further we can add online exam part for our system and Graphical user interface

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We can improve our user manual to the users to use this system more easily


COLA- 051935_ Java _COM065.docx

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