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Uploaded bymahir jain
PPTX, PDF108,241 views

Presentation on Core java

This presentation provides an overview of the Java programming language. It discusses what Java is, where it is used, its features, how Java programs are translated and run on the Java Virtual Machine. It also covers Java concepts like object-oriented programming, data types in Java, garbage collection, and the development phases of a Java program. Finally, it proposes a project idea of developing an intranet mailing system and concludes by thanking the audience and asking if there are any questions.

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PRESENTATION ON CORE JAVA BY MAHIR JAIN
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
WHAT IS JAVA ?  Java is Object Oriented Programming language as well as Plateform.  Java was developed by a team led by James Gosling at Sun Microsystems.  Java is a first programming language which provide the concept of writing programs that can be executed using the web.
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.
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
JAVA PROGRAM TRANSLATION Hello.java javac Hello.class Interpreter for WinXP Interpreter for Mac Interpreter for Unix Source Program Java Compiler Java Bytecode
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 translate Bytecode into machine language.  JVM are available for many hardware and software Plateform.
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 Programing Language
CONCEPTS OF OOP • Object • Class • Encapsulation • Inheritance • Polymorphism • Abstraction
JAVA SYSTEM OVERVIEW Java Application Java Programming Language Java Native Interface Java Class Library Operating System Class Loader Verifier Execution Java Virtual Machine
JAVA PROGRAM-DEVELOPMENT PHASES
DATA TYPES IN JAVA
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.
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).
DISADVANTAGES OF JAVA  Slow Performance.  No support for Low level programming.  Poor features in Java.  No control over Garbage Collection.
PROJECT INTRANET MAILING SYSTEM • Users can send information and query to each other. • Provides the facility to maintain profile and inbox of each employee separately. • Develop a communication interface for the organization.
THANK YOU
Any Query ?