JDK comes packing demonstrative source codes and particular APIs using Java Foundation Classes including Swing as well as the Java Platform Debugger Architecture. You are also given access to the Java Virtual Machine (JVM) component of JRE alongside class libraries and support files in order to implement your applications. While the Java Runtime Environment (JRE) allows you to execute Java applications, components and applets, the Java Development Kit (JDK) delivers a comprehensive set of tools for programmers to build, run, debug and even document the Java code. The Java platform provides one environment to develop software for multiple operating systems such as Microsoft Windows, Mac OS X or Linux distributions. Its features are utilized on most of the electronic equipment worldwide, from PCs, mobile terminals or media players to more sophisticated medical devices. Make sure that the class name and file name are the same.The Java programming language is, according to the TIOBE programming community index, one of the top choices of software developers, battling for supremacy with the C and C-based languages.
Now write the first Java program as shown below, save the program as HelloWorld.java and exit the editor. In this step, we will write, compile, and execute our first program in Java using the standard Hello World example. You can follow How To Switch Java Version On Mac. It might be required to switch the active Java in case multiple JDKs are installed on the same Mac machine. This is all about installing Oracle JDK 11 on Mac systems including macOS Sierra, High Sierra, Mojave, and Catalina.
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