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The Јava programming language is a high-level programming language created by Sun Microsystems and introduced in 1995.

The language is characterized as object-oriented and platform-independent. The first means that every program in Java is a class, which can later be implemented as an object which can be reusable. The second means that any Java program can run on any operating system without portability. This caused a blow to Microsoft in the mid-1990s, and later they included Java in their Visual Studio. Today Java is considered the most common technology because Java programs are installed in toys, cell phones, cars, airplanes, and even space shuttles.

Therefore, the original Java was developed on the Solaris platform (UNIX version) and later spread to all versions of UNIX, Linux, Windows, and Mac OS. The original applets were also designed for the Netscape Navigator browser, and later other browsers included support for Java (including Internet Explorer, Mozilla Firefox, and Chrome).

This series of articles will elaborate on applications and applets that can be launched under any available browser. Also, we’ve used the Java version of JDK 11 under Windows, as all exposed commands, examples, and programming concepts are entirely identical for all versions. You can try all the examples on any platform – they will work equally well.

The Advantages of Java

Java language is intended to be multi-platform – write once, execute everywhere. The major Java features are:

• Platform-independent – this means that Java programs can run on any platform. This is possible due to the fact that Java compilers translate the program into a bytecode program. Bytecode is similar to machine language but is independent of any computer. It is read and executed by a program called Java Virtual machine. The advantage of the two-step approach is that it produces programs that still run at a reasonable speed, and the Java environment can be quickly implemented on any computer.
• Object-oriented – fully object-oriented languages and programming environments allow you to take full advantage of objects, classes, and methods – for creating flexible, modular programs that reuse the code itself. Many object-oriented concepts in Java are inherited from C ++ – the language it is based on; many concepts are also borrowed from other object-oriented languages. As with most object-oriented programming languages, Java includes a collection of Class libraries that provide basic data types, system inputs and outputs, and other valuable features.
• Easy to learn – one of Java’s primary design goals is to be small and straightforward, so it is easy to write, easy to translate, easy to debug, and, best of all, easy to learn. Having a small language makes it strong because there is little chance that developers will make errors that are difficult to fix. Despite its size and simple design, Java still has power and flexibility.
• Robust and Secure– Java is a robust and secure platform for developing and running applications. It provides tools for automatic memory management, reduces code vulnerabilities, and ensures secure data transmission. It provides encryption-based authentication. Java also identifies both compile-time and run-time errors, thus reducing the possibilities for bugs in execution.

Target Readers

This series of articles is intended for beginners and intermediate learners who want to grasp the language quickly. The articles cover the main Java syntax, code-handling techniques, object-oriented features of Java, basic Web, GUI, and networking capabilities.