You can verify this through the command prompt by the java -version command. After Installing the JDK and JRE adds the java command to your command line. Java maintains backward compatibility, so don’t worry just download the latest release and you will get all the old and many new features.
Go to the Advanced tab and select Environment Variables, and then edit JAVA_HOME to point to the exact location where your JDK software is stored, for example, C:\Program Files\Java\jdk11.0.9 is the default location in windows. Right-click My Computer and select Properties. Just check the JDK software is installed or not on your computer at the correct location, for example, at C:\Program Files\Java\jdk11.0.9. Select the latest JDK version and click Download and add it to your classpath. Go to this Oracle’s official Download Page through this link. Setting up JDK in your development environment is super easy, just follow the below simple steps. Amazon Corretto: the newest option with the no-cost build of OpenJDK and long-term support. IBM J9 JDK: for AIX, Linux, Windows, and many other OS,. Azul Systems: based Zulu brand for Linux, Windows, Mac OS X,. 
Azul Systems Zing: efficient and low latency JDK for Linux os,. OpenJDK: Ready for use: JDK 15, JDK 14, and JMC,. Oracle JDK: the most popular JDK and the main distributor of Java11,. The Private Runtime in JDK contains a JVM and all the class libraries present in the production environment, as well as additional libraries useful to developers, e.g, internationalization libraries and the IDL libraries. The Java Runtime Environment in JDK is usually called Private Runtime because it is separated from the regular JRE and has extra content. Split() String method in Java with examples. StringBuffer appendCodePoint() Method in Java with Examples. How Do I Become a Good Java Programmer?. Using predefined class name as Class or Variable name in Java. Monolithic vs Microservices architecture. How to run java class file which is in different directory?. Myth about the file name and class name in Java. Does JVM create object of Main class (the class with main())?. 
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