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. Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.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. Java(TM) SE Runtime Environment 18.9 (build 11.0.1+13-LTS) Display the JDK version javac -version
Issue the following commands to verify that JDK/JRE are properly installed and display their version:.Under "Java Platform, Standard Edition" ⇒ "Java SE 11.0.
Goto "Control Panel" ⇒ (optional) "Programs" ⇒ "Programs and Features" ⇒ Un-install ALL programs begin with "Java", such as "Java SE Development Kit. If you have previously installed older version(s) of JDK/JRE, un-install ALL of them. Although you can install multiple versions of JDK/JRE concurrently, it is messy. I recommend that you install only the latest JDK. Step 0: Un-Install Older Version(s) of JDK/JRE
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