Java Tutorial
Our core Java programming tutorial is designed for students and working professionals. Java is an
object-oriented, class-based, concurrent, secured and general-purpose computer-programming
language. It is a widely used robust technology.
What is Java?
Java is a programming language and a platform. Java is a high level, robust, object-oriented and
secure programming language.
Java was developed by Sun Microsystems (which is now the subsidiary of Oracle) in the year 1995.
James Gosling is known as the father of Java. Before Java, its name was Oak. Since Oak was already a
registered company, so James Gosling and his team changed the name from Oak to Java.
Platform: Any hardware or software environment in which a program runs, is known as a platform.
Since Java has a runtime environment (JRE) and API, it is called a platform.
Java Example
Let's have a quick look at Java programming example. A detailed description of Hello Java example is
available in next page.
Simple.java
class Simple{
public static void main(String args[]){
System.out.println("Hello Java");
}
}
Output: Hello Java
, Application
According to Sun, 3 billion devices run Java. There are many devices where Java is currently used.
Some of them are as follows:
Desktop Applications such as acrobat reader, media player, antivirus, etc.
Web Applications such as irctc.co.in, javatpoint.com, etc.
1.Enterprise Applications such as banking applications.
2.Mobile
3.Embedded System
4.Smart Card
5.Robotics
6.Games, etc.
Types of Java Applications
There are mainly 4 types of applications that can be created using Java programming:
1) Standalone Application
Standalone applications are also known as desktop applications or window-based applications. These
are traditional software that we need to install on every machine. Examples of standalone
application are Media player, antivirus, etc. AWT and Swing are used in Java for creating standalone
applications.
2) Web Application
An application that runs on the server side and creates a dynamic page is called a web application.
Currently, Servlet, JSP, Struts, Spring, Hibernate, JSF, etc. technologies are used for creating web
applications in Java.
3) Enterprise ApplicationAn application that is distributed in nature, such as banking applications,
etc. is called an enterprise application. It has advantages like high-level security, load balancing, and
clustering. In Java, EJB is used for creating enterprise applications.
4) Mobile Application
An application which is created for mobile devices is called a mobile application. Currently, Android
and Java ME are used for creating mobile applications.
Our core Java programming tutorial is designed for students and working professionals. Java is an
object-oriented, class-based, concurrent, secured and general-purpose computer-programming
language. It is a widely used robust technology.
What is Java?
Java is a programming language and a platform. Java is a high level, robust, object-oriented and
secure programming language.
Java was developed by Sun Microsystems (which is now the subsidiary of Oracle) in the year 1995.
James Gosling is known as the father of Java. Before Java, its name was Oak. Since Oak was already a
registered company, so James Gosling and his team changed the name from Oak to Java.
Platform: Any hardware or software environment in which a program runs, is known as a platform.
Since Java has a runtime environment (JRE) and API, it is called a platform.
Java Example
Let's have a quick look at Java programming example. A detailed description of Hello Java example is
available in next page.
Simple.java
class Simple{
public static void main(String args[]){
System.out.println("Hello Java");
}
}
Output: Hello Java
, Application
According to Sun, 3 billion devices run Java. There are many devices where Java is currently used.
Some of them are as follows:
Desktop Applications such as acrobat reader, media player, antivirus, etc.
Web Applications such as irctc.co.in, javatpoint.com, etc.
1.Enterprise Applications such as banking applications.
2.Mobile
3.Embedded System
4.Smart Card
5.Robotics
6.Games, etc.
Types of Java Applications
There are mainly 4 types of applications that can be created using Java programming:
1) Standalone Application
Standalone applications are also known as desktop applications or window-based applications. These
are traditional software that we need to install on every machine. Examples of standalone
application are Media player, antivirus, etc. AWT and Swing are used in Java for creating standalone
applications.
2) Web Application
An application that runs on the server side and creates a dynamic page is called a web application.
Currently, Servlet, JSP, Struts, Spring, Hibernate, JSF, etc. technologies are used for creating web
applications in Java.
3) Enterprise ApplicationAn application that is distributed in nature, such as banking applications,
etc. is called an enterprise application. It has advantages like high-level security, load balancing, and
clustering. In Java, EJB is used for creating enterprise applications.
4) Mobile Application
An application which is created for mobile devices is called a mobile application. Currently, Android
and Java ME are used for creating mobile applications.
