History

In the early 1990s, Sun Microsystems (which was later acquired by Oracle) had the idea to create a programming language that would be easy to use and at the same time powerful for developing applications on various platforms. Thus was born the language, whose original name was Oak, in honor of an oak tree that grew near one of Sun Microsystems’ offices. But when the name needed to be registered, it turned out that there was already a company with the same name, so Sun Microsystems decided to rename its language Java.

The language gained widespread popularity and acceptance in 1995 when Sun Microsystems released it as Java Development Kit (JDK) 1.0. This was the first step towards creating a powerful and portable platform that could run on different operating systems without changes to the source code.

Over time, Java became not only a programming language, but an entire platform that combined many technologies and became an ideal choice for various tasks.

A key moment in the history of Java was the acquisition of Sun Microsystems by Oracle in 2009. At that time, developer oracle became the managing organization of the Java Community Process (JCP), which develops new versions of the language and platform. This gave Java a new impetus for development and strengthened its position in the programming world.

Key Features

Let’s take a look at the features of Oracle Java that make it an integral part of modern programming.

• Performance. Java Oracle is a runner in the programming world. It is renowned for its outstanding performance, making it an ideal choice for developing large-scale and complex applications. Powerful Java compiler optimizations, such as Just-In-Time (JIT) compilation, allow Java code to be translated into machine code in real time, increasing the speed of program execution. This is especially important for highly loaded systems, such as web servers and databases, where every millisecond counts;
• Security is one of Java’s fundamental values. It was designed with malware protection and vulnerability prevention in mind. With its sandbox architecture, Java applications run in an isolated environment, which prevents them from interfering with each other and provides an additional layer of protection. This is especially true when running applications from untrusted sources, such as web or mobile applications;
• Portability. Java is truly unique in its ability to run on different operating systems without changing the code. Code written in Java can be run on Windows, macOS, Linux, and various variants of UNIX. This makes this language ideal for developing cross-platform applications that can run on a variety of devices;
• Scalability. Java supports multithreading, which enables parallel tasks and improves overall performance. Java applications can be scaled at various levels, from small mobile applications to huge enterprise systems with thousands of users;
• The rich standard library is one of Java’s strengths. It provides a variety of tools and classes that simplify development and speed up the process of creating applications.

As you can see, it is not surprising that Java remains one of the most popular and in-demand technologies in the programming world, attracting new generations of talented developers.

The post History and Features of Oracle Java appeared first on Asjava.

Windows

• Go to the official Oracle Java website;
• On the download page, select the Java version you need (for example, Java SE Development Kit) and click “Agree and start the free download”;
• After downloading the file, run the installer and follow the on-screen instructions to complete the installation process;
• After installation, open Command Prompt or PowerShell, type the command java -version and press Enter. The version of Oracle Java that is installed on your system will be displayed.

macOS

• Open the App Store on your Mac, search for the Java Development Kit (JDK) from Oracle Corporation;
• Click “Get” and confirm the installation by entering your Apple ID account credentials;
• Wait for the installation to complete, and then you can find Java in the Applications folder on your Mac.

Linux (Ubuntu)

• Open a terminal on your Ubuntu and update the package list: sudo apt update;
• Install the OpenJDK Java Development Kit (JDK) package: sudo apt install openjdk-11-jdk;
• When installing the package, you may be prompted to confirm your selection. Type “y” (yes) and press Enter;
• Wait for the installation to complete and Java will be installed on your Ubuntu;
• You can now start developing applications.

Professional Environment

Oracle Java continues to hold a well-deserved position in the professional community as a powerful and versatile software development tool. Its broad applications in various domains including web development, mobile applications, server solutions, cloud solutions and IoT make it an indispensable asset for developers.

An important part of professional development and asserting competency in Oracle Java is Oracle certification. Oracle exams are standardized tests that enable developers to validate their knowledge and skills in working with the platform and related technologies. Oracle Java certifications provide a reliable test of practical expertise, and successfully passing them opens up new career opportunities.

Naturally, preparation for Oracle certification requires systematic study of materials and active practice. Official Oracle materials, training courses and practice tests will help developers to deepen their knowledge and pass the exams with confidence. Interacting with the developer community and communicating on forums will also provide valuable resources to prepare for certification.

The post Installation and how to find out the oracle version appeared first on Asjava.