Get started with Java

Java was developed by Sun Microsystems before it was acquired by Oracle Corporation. It came out in 1995 with the aim of presenting a system independent language for programming. Java became known for its capability to “write once, run anywhere” indicating that any computing device or operating system with java virtual machine (JVM) can run Java programs.

Java is called an object-oriented language as it uses objects that contain data and methods. It is intended to be simple, secure, and robust, making it applicable in different areas like websites and mobile phones and big business systems.

The typical format for Java applications is the bytecode which operates on any JVM irrespective of the hardware and operating system underlying. This design makes Java programs highly versatile because they are adapted according to location.

In addition, Java has a huge standard library that includes many pre-built classes and methods for such common tasks as handling data structures, networking, input/output operations, graphical user interfaces (GUIs).

Java Versions

Java has different versions that are designed to cater for distinct development necessities and surroundings. Below is the Java key versions

Java SE (Standard Edition):

The Java SE is the main platform for Java whose major use is developing desktop applications, command-line tools, and standalone applications. It includes JDK (Java Development Kit) and provides basic libraries and tools required for development in Java.

Java EE (Enterprise Edition):

Also known as Jakarta EE, Java EE is a collection of specifications and APIs used to construct large-scale business applications. JPain.com offers technologies that allow creating web-based applications, enterprise integration, and large-scale distributed systems using this framework. They include Servlets, JSP(Java Server Pages), EJB(Enterprise JavaBeans), JPA(Java Persistence API), et al.

Java ME (Micro Edition):

This platform is meant for developing software on embedded devices such as mobile phones or other low-powered gadgets. It offers a limited set of features for devices with little memory or CPU power as well as monochromatic display screens.Researchers commonly use it in designing programs dealing with typical mobile phones games plus utilities.

Card Application

This card application utilizes the most secure smartcard-based security features; it is called The Java Card Platform which clears all doubts about its safety.