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Library Management System

Purpose: System is mainly to provide automation to the library. The categories of users provided are :

Admin: He can read or write the information about any member and can update, delete or create a membership plan.

Operator: He can open the account of membership to the new members.

Scope: The application is wide and can be used with Any education institute and also can be used in offices with the necessary modifications done.

Technology Used:

Backend: Apache tomcat server, MS Access.

FrontEnd: Servlets, HTML, Java script

With this application, the manual application is converted into automated online application. For example purposes, customized data is being used for this purpose. The user will not have the previlege to enter the data about the books.

The three major components in the application are:

-Stock maintenance
-Transaction entry

The solutions provided by the system are:

-better and efficient service provided
-Faster retrieval of information
-reduced workload of the library staff
- All details of the book will be available on a click

The Library Management System is an application forassisting a librarian in managing a book library in auniversity. The system would provide basic set of features to add/update members, add/update books, and manage check in specifications for the systems based on the client’s statement of need.

Library management system is a typical management Information system (MIS), its Development include the establishment and maintenance of back-end database and front-end application development aspects. For the former require the establishment of data consistency and integrity of the strong data security and good libraries. As for the latter requires the application fully functional, easy to use and so on.

The project titled Library Management System is Library

Management software for monitoring and controlling the transactions in a library .The project “Library Management System” is developed in php, which mainly focuses on basic operations in a library like adding new books, and updating new information, searching books and members and return books.

This project of “LIBRARY MANAGEMENT” of gives us the complete information about the library. We can enter the record of new books and retrieve the details of books available in the library. We can issue the books to the students and maintain their records and can also check how many books are issued and stock available in the library. In this project we can maintain the late fine of students who returns the issued books after the due date.

Throughout the project the focus has been on presenting information and comments in an easy and intelligible manner. The project is very useful for those who want to know about Library Management System.


System and their relationships within and outside of the system. Here the key question is- what all problems exist in the present system? What must be done to solve the problem? Analysis begins when a user or manager begins a study of the System Analysis is a detailed study of the various operations performed by a program using existing system.During analysis, data collected on the various files, decision points and transactions handled by the present system. The success of the system depends largely on how clearly the problem is defined, thoroughly investigated and properly carried out through the choice of solution. A good analysis model should provide not only the mechanisms of problem understanding but also the frame work of the solution. Thus it should be studied thoroughly by collecting data about the system. Then the proposed system should be analyzed thoroughly in accordance with the needs

Proposed system is an automated Library Management System. Through our software user can add books, search books, renewal, update information, edit information, and return books in quick time. Our proposed system has the following advantages.

. User friendly interface
. Fast access to database
. Less error
. More Storage Capacity
. Search facility
. Look and Feel Environment
. Quick transaction

All the manual difficulties in managing the Library have been rectified by implementing computerization.

A data flow diagram, also known as “bubble chart” has the purpose of clarifying system requirements and identifying major transformation that will become programs in system design. It is a graphic representation of a system or portion of system. A DFD consists of a series of bubbles joined by lines. It consists of data flows, processes, sources, destinations and stores all described through the use of easily understood symbols. An entire system can be described from the viewpoint of the data it processes with only four symbols. The DFD is also powerful enough to show parallel activities.

• Physical data flow diagram: -Physical data flow diagram is implementation dependent. They show the actual devices, department, people etc. involved in the current system.
• Logical data flow diagram: -It describes the system independently of how it is actually implemented, that is , they show what takes place, rather than how an activity is accomplished.

a) Source or Destination: -The source or destination is graphically represented as a rectangle. Source or destination external entities with which the system communicates. A source or destination is a person or a group of persons that are outside the control of the system being modeled.
b) Data Flow: -The flow is represented graphically by an arrow into or out of a process. The flow is used to describe the movement of chunks or packet of information from one part of the system to another part. The flow represents data in motion.
c) Process: -The process shows a part of the system that transforms input into output. The process is represented graphically as a circle or bubble. d) Data Store: -The data store is used to model a collection of data packet at rest. The notation of a data store is two parallel lines. Data stores are typically implemented as files or databases in computerized system. Data stores are connected by flow to processes.

What is JAVA?
Java is an entire programming language resembling C or C++. It takes a sophisticated programmer to create Java code. And it requires a sophisticated programmer to maintain it. With Java, you can create complete applications. Or you can attach a small group of instructions, a Java "applet" that improves your basic HTML. A Java Applet can also cause text to change color when you roll over it. A game, a calendar, a scrolling text banner can all be created with Java Applets. There are sometimes compatibility problems between Java and various browsers, operating systems or computers, and if not written correctly, it can be slow to load. Java is a powerful programming language with excellent security, but you need to be aware of the tradeoffs.

What is JSP?
Short for Java Server Page. A server-side technology, Java Server Pages are an extension to the Java servlet technology that was developed by Sun. JSPs have dynamic scripting capability that works in tandem with HTML code, separating the page logic from the static elements -- the actual design and display of the page -- to help make the HTML more functional(i.e. dynamic database queries). A JSP is translated into Java servlet before being run, and it processes HTTP requests and generates responses like any servlet. However, JSP technology provides a more convenient way to code a servlet. Translation occurs the first time the application is run. A JSP translator is triggered by the .jsp file name extension in a URL. JSPs are fully interoperable with servlets. You can include output from a servlet or forward the output to a servlet, and a servlet can include output from a JSP or forward output to a JSP. JSPs are not restricted to any specific platform or server. It was orignially created as an alternative to Microsoft's ASPs (Active Server Pages). Recently, however, Microsoft has countered JSP technology with its own ASP.NET, part of the .NET initiative.

What is JavaScript?
When new technologies start, they sometimes acquire names that will be confusing in the future. That's the case with JavaScript. JavaScript is not 'Java'. JavaScript is a simple programming language that was developed by Netscape that writes commands to your browser when the HTML page is loaded. Note: you can have compatibility issues with Java Script, especially in newer versions of Browsers.

What is Java?
Java is a simple, distributed object oriented programming language which provides the security, High performance, robustness.
Java is a portable and Architectural neutral language which can be Interpreted.
Java is multithreaded and Dynamic language.

About Java
Java is a Programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java Platform. The language derives much of its Syntax from c and C++ but has a simpler object Model and fewer low-level facilities. Java applications are typically compiled to bytecode(class file) that can run on any Java Virtual machine (JVM) regardless of computer architecture.

Why Software Developers Choose Java?
Java with its versatilty, efficiency, and portability, Java has become invaluable to developers by enabling them to:

• Write software on one platform and run it on virtually any other platform
• Create programs to run within a Web browser and Web services
• Develop server-side applications for online forums, stores, polls, HTML forms processing, and more
• Combine applications or services using the Java language to create highly customized applications or services
• Write powerful and efficient applications for mobile phones, remote processors, low-cost consumer products, and practically any other device with a digital heartbeat.

Goals in creation of Java
There were five primary goals in the creation of the Java language

1. It should be "simple, object oriented".
2. It should be "robust and secure".
3. It should be "architecture neutral and portable".
4. It should execute with "high performance".
5. It should be "interpreted, threaded, and dynamic".

Architecture of Java
Java's architecture arises out of four distinct but interrelated technologies: 

• The Java programming language 
• The Java class file format 
• The Java Application Programming Interface 
• The Java virtual machine 

When you write and run a Java program, you are tapping the power of these four technologies. You express the program in source files written in the Java programming language, compile the source to Java class files, and run the class files on a Java virtual machine. When you write your program, you access system resources (such as I/O, for example) by calling methods in the classes that implement the Java Application Programming Interface, or Java API. As your program runs, it fulfills your program's Java API calls by invoking methods in class files that implement the Java API. 

The Java Virtual Machine
At the heart of Java's network-orientation is the Java virtual machine, which supports all three prongs of Java's network-oriented architecture: platform independence, security, and network-mobility. 

A Java virtual machine's main job is to load class files and execute the bytecodes they contain. As you can see in Figure 1-3, the Java virtual machine contains a class loader, which loads class files from both the program and the Java API. Only those class files from the Java API that are actually needed by a running program are loaded into the virtual machine. The bytecodes are executed in an execution engine. 

Coding standard
Java suggests set of coding standard to follow while writing java program. Coding standard helps author as well as others to better understand program. It reduce amount of debugging time considerably. Basically coding standard suggests how to name class, methods variables of different scope, package etc.

Writing a Java program
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 the javac 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). The java launcher tool then runs your application with an instance of the Java Virtual Machine.

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