Java is a high-level programming language originally developed by Sun Microsystems and released in 1995. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. This tutorial gives a complete understanding of Java. This reference will take you through simple and practical approaches while learning Java Programming language.
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 Oak name 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 is a MUST for students and working professionals to become a great Software Engineer specially when they are working in Software Development Domain. I will list down some of the key advantages of learning Java Programming:
There are mainly 4 types of applications that can be created using Java programming:
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 applications are Media player, antivirus, etc. AWT and Swing are used in Java for creating standalone applications.
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.
An application that is distributed in nature, such as banking applications, etc. is called enterprise application. It has advantages of high-level security, load balancing, and clustering. In Java, EJB is used for creating enterprise applications.
An application which is created for mobile devices is called a mobile application. Currently, Android and Java ME are used for creating mobile applications.
This tutorial has been prepared for the beginners to help them understand the basic to advanced concepts related to Java Programming language.
Before you start practicing various types of examples given in this reference, we assume that you are already aware about computer programs and computer programming languages.
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