#Java tutorial how to
#Java tutorial code

For example, the driver only knows how to drive a car there is no need to know how does the car run. Data fields with their current values represent the state of an object (also known as its properties or attributes).Ībstraction: An abstraction is a method of hiding irrelevant information from the user. An object has a unique behavior, identity, and state. For example, a desk, a circle can be considered as objects. Object: An object is a real-world entity that can be identified distinctly. We can define a class by using the class keyword. In OOPs, we create programs using class and object in a structured manner.Ĭlass: A class is a template or blueprint or prototype that defines data members and methods of an object. It is easier to develop a program by using an object. Object-oriented programming is a way of solving a complex problem by breaking them into a small sub-problem. OOPs (Object Oriented Programming System) It means to handle more than one job a time.

Multi-threaded: Java also supports multi-threading.

EJB and RMI are used to create a distributed system. It is designed for the distributed environment of the internet because it supports TCP/IP protocol.

Distributed: Java also has networking facilities.

Java enables high performance with the use of the Just-In-Time compiler.

High Performance: Java is an interpreted language.

Everything related to storage is predefined, for example, the size of primitive data types.

#Java tutorial code

Portable: Java Byte code can be carried to any platform.This byte code is platform-independent and can be run on any machine. Platform-Independent: Java provides a guarantee that code writes once and run anywhere.Java contains a security manager that defines the access of Java classes.

Secure: Java is a secure programming language because it has no explicit pointer and programs runs in the virtual machine.Exception handling and garbage collection features make it strong.

It uses a strong memory management system called garbage collector.

Robust: Java makes an effort to check error at run time and compile time.

A program must have at least one class and object.

Object-Oriented: In Java, everything is in the form of the object.

For example, pointer and operator overloading are not used in Java. Complex and ambiguous concepts of C++ are either eliminated or re-implemented in Java.

Simple: Java is a simple language because its syntax is simple, clean, and easy to understand.

Java Platform includes an execution engine, a compiler and set of libraries. It helps to develop and run a program written in the Java programming language. Java Platform is a collection of programs. Java is a platform for App Development in Android.

Mobile Applications: Java ME is a cross-platform to develop mobile applications which run across smartphones.

We use JSP, Servlet, Spring, and Hibernate technologies for creating web applications.

Web Applications: An applications that run on the server is called web applications.

Enterprise Applications: An application which is distributed in nature is called enterprise applications.

These components contain buttons, list, menu, scroll panel, etc.

Standalone Applications: Java standalone applications uses GUI components such as AWT, Swing, and JavaFX.

There are four types of Java applications that can be created using Java programming:

Java Micro Edition (JME): It is used to develop applications for small devices such as set-top boxes, phone, and appliances.

Java Enterprise Edition (JEE): It is used to create large programs that run on the server and manages heavy traffic and complex transactions.

Java Standard Editions (JSE): It is used to create programs for a desktop computer.

Editions of JavaĮach edition of Java has different capabilities. In 2009, Sun Microsystem takeover by Oracle Corporation. In 1995, Sun Microsystem changed the name to Java. Java is a high-level, general-purpose, object-oriented, and secure programming language developed by James Gosling at Sun Microsystems, Inc.