This presentation provides an overview of core Java concepts. It introduces Java as a popular programming language due to its portability across platforms. It then outlines the contents to be covered, including what Java is, where it is used, its features, how Java programs are translated and executed, and an overview of the Java system. Key topics like the Java Virtual Machine, object-oriented programming concepts in Java, data types, and garbage collection are explained. The advantages and disadvantages of Java are also presented. Finally, a library management system project built in Java is described as an example.

1. PRESENTATION
ON
CORE JAVA

2. Introduction
Java language is the most popular
programming language in use today by many
measures.
Portability across hardware platforms
and operating systems is the main benefit of
Java applications.

3. CONTENT
• What is Java ?
• Where is Java used ?
• Features of Java
• Java Program Translation
• Java Virtual Machine
• Java system overview
• Java Program-Development phase
• Advantage of java
• Disadvantage of java
• Project

4. WHERE IS JAVA USED ?
According to the Sun , 3 billion devices run java.
There are many devices where Java is currently used.
Desktop Applications - Acrobat reader, Media player,
Antiviruses etc.
 Web Applications - irctc.co.in , javatpoint.com etc.
 Enterprise Application – Banking Application, Business
Application.
Mobile.
Embedded System.
Games.
Robotics.

5. FEATURES OF JAVA
 Java is Simple.
 Java is Object Oriented
 Java is Distributed
 Java is Architecture Neutral
 Java is Robust
 Java is Interpreted and Compiled
 Java is Secure
 Java is Portable
 Java is Multi-Threaded

6. JAVA VIRTUAL MACHINE
 Java virtual machine is the like usual
computer which translate high level language
into machine language.
 Just like that Java virtual machine also
t ranslate Bytecode into machine language.
JVM are available for many hardware and
software Plateform.

7. WHAT IS OOP ?
Object-oriented programming is a method of
implementation.
A language in which everything represent in the
form of Object is called Object Oriented
Programming Language.
It not only makes the program less complex but
also makes the software reuse feasible and
possible
Java is not truly Object Oriented Programming
Language

8.  Object
 Class
 Encapsulation
 Inheritance
 Polymorphism
 Abstraction
CONCEPTS OF OOP

9. JAVA SYSTEM OVERVIEW
Java Application
Java Programming Language
Java Native
Interface
Java Class Library
Java Virtual Machine
Class
Loader
Verifier Execution
Operating System

10. DATA TYPES IN JAVA

11. GARBAGE COLLECTION
 Garbage collection is the mechanism that De
allocate the memory of an object when it is no
longer referenced by a variable.
 In C++, the memory of an Object is released
by use of delete operator.
 Java virtual machine determines when to
free up the memory of an object.

12. ADVANTAGES OF JAVA
 Java is simple language.
 Java does not support POINTERS.
 Java is first language in which
programs can be
executed using web.
Write Once Run Anywhere (WORA).

13. DISADVANTAGES OF JAVA
 Slow Performance.
 No support for Low level
programming.
 Poor features in Java.
 No control over Garbage
Collection.

14. PROJECT
LIBRARY MANAGEMENT SYSTEM

15. OBJECTIVE
 Online book issue
 Request column for librarian
for providing new books
 A separate column for digital
library

16. OBJECTIVE
 Student login page where
student can find books issued
by him/her and date of
return.
 A search column to search
availability of books

17. HOME PAGE

18. HOME PAGE

19. ADMIN PAGE

20. STUDENT PAGE

21. Thank
You…