Know about Java Why it is a powerful programming language

Java is the base coding platform for many digital applications that you are already using nowadays such as smartphones, laptops, tablets, supercomputers, game consoles, etc.

Today, Java is preferred by most organizations to develop their applications or projects.

What is Java?

Java is a fast, secure, reliable, robust, and popular class-based object-oriented programming language. James Gosling developed Java in 1995 at Sun Microsystems, Inc. Oak was the original name of the Java programming language. The current owner of Java is Oracle corporation. Oracle has not developed Java. Java has been acquired by the Oracle corporation in 2010.

Java SE 18 is the latest version of Java released in March 2022. You can download Java for free for personal use. The developer can find and download the development kits and tools at Oracle’s official website – https://www.oracle.com/javadownload/

Java is similar to C/C++ and its class libraries because Gosling had designed Java with a C/C++-style syntax. One who knows C/C++ can learn and master Java fastly and efficiently.

What is a Java Platform?

Java platform is a type of environment having a group of multiple programs which makes it possible to develop and run the Java application. This environment is made of three basic components – Java language, Java packages, and Java virtual machine(JVM).

The following are the different names of Java platforms(also called Java editions) –

Java Platform, Micro Edition (Java ME) – It provides environments with limited resources with an API and a short impression of the virtual machines, suitable for small devices – mobile phones.
Java Platform, Standard Edition (Java SE) – It provides a workstation-based environment with core functionality like I/O stream, Networking, Exception, Inner Classes, etc., and APIs like java.io, java.net, etc. It is suitable for GUI development, networking, database access, etc.
Java Platform, Enterprise Edition (Java EE) – It is mainly for large distributed enterprise or Internet environments with API and is suitable to develop web and enterprise applications like web services, Servlet, JSP, etc.
Java FX – It provides an environment for developing rich internet applications using a lightweight user-interface API and is suitable for connecting to networked data sources.

What are the components of the Java platform?

Java platform components are responsible to interpret and execute the Java developer’s source code or programming code into machine understandable format and providing output or result as per source code logic. Here is a short explanation of these Java platform components –

Java Development kit (JDK) – It is a type of development environment that provides tools like – a compiler, application launcher, applet viewer, etc. to write or develop and run applets and Java applications.
Java Virtual Machine (JVM) – It provides a run time engine for running the Java codes and applications.
Java Runtime Environment (JRE) –

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Java code example sample –

Here is the following code represents Java code for showing the welcome message –

 /*Filename - welcome.java */ 
/***************************/ 
Type to compile the file welcome.java - javac Welcome.java Type to execute the file welcome.java - java Welcome Output would show as - Hello Welcome to Java 
/***************************/ 

class Welcome{ 
public static void main(String args[]){ 
System.out.println("Hello Welcome to Java"); 
    } 
}

What are the types of Java Applications?

You can create majorly four different types of applications as below –

Stand-alone application – As you know that standalone applications refer to desktop applications or windows applications. This is traditional software that we have to install on every machine. Examples of stand-alone applications are Media players, antivirus, etc. AWT and Swing are used in Java to build stand-alone applications.
Web Application – As you know web application refers to server-based dynamic page generation for showing the application output. Currently, we create the web application using Servlet, JSP, Struts, Spring, Hibernate, JSF, etc. in Java.
Enterprise Application- An application that is distributed in nature like banking applications etc. is called an enterprise application. It has advantages such as a high level of security, load balancing, and clustering. You can create enterprise-level applications using EJB in Java.
Mobile Application – An application that is created for a mobile device is called a mobile application. Android and Java ME are currently used for creating mobile applications.

What are the features of Java?

The following are features of Java –

It uses object-oriented programming design for application development. Java uses its object-based functionality, making it an extensible programming language. You can extend its functionality thanks to object-oriented design.
Java is an easy-to-use and learns programming language because it is based on OOP design and logic.
Code once written in Java can easily run on different computer platforms.
Java is platform-independent. Some programs developed on one computer can be run on another machine.
It is intended for creating object-oriented applications.
Memory management in java operates in auto mode and it works in a multi-threading way.
Java is designed to work with the distributed network environment of the Internet.
Facilitates distributed computing as its network-oriented.

What is Java used for?

While the primary use of Java is for computer software programming, there are many other specific uses which are highlighted below –

Server side or backend application development – Java can be used to create functional components of an application. Users do not interact with these parts, but they are necessary for the frontend to thrive. Java follows the Write Once, Run Anywhere (WORA) concept so it is considered the ideal server-side applications development tool for all operating systems.
Complete Web Application Development – Java can be used to create a variety of web applications. As a web application development tool, Java 8 can be used to design both frontend and backend applications.
Distributed Application Development – Java is one of the few programming languages that can be used to create applications for a single computer network or distributed system. Distributed Java applications have components spread across different systems rather than a central mainframe.
Cloud Application Development – Java is also an ideal programming language for creating cloud applications. You can create SaaS (software as a service ) application using Java. These applications are gaining popularity across industries because they are more secure and affordable than traditional systems.
Big Data Engineering – In addition to traditional software development, Java 8 has been applied in big data engineering, especially in the big data processing. Java works smartly and efficiently for memory management and distribution.

Who uses Java?

Java is used widely to develop applications by top companies in the world. Here are the example names – Amazon, eBay, Google, Uber, Netflix, Instagram, etc.

Source: infotokri