Also called a superset of Java Runtime Environment (JRE), a loader/interpreter, JDK also includes javac, a compiler Javadoc, a document generator and jar, an archiver among other tools. It delivers all the tools along with executables and binaries requisite for compiling, debugging, and executing a Java program. OpenJDK 64-Bit Server VM 18.9 (build 11.0. JDK Java Development Kit, or simply JDK, is a crucial facet of Java. OpenJDK Runtime Environment 18.9 (build 11.0.2 9) Oracle JRE and JDK Cryptographic Roadmap Last updated on The following information represents Oracle's plans for changes to the security algorithms and associated policies/settings in the Oracle Java Runtime Environment (JRE) and Java SE Development Kit (JDK). I've also tried to follow the guidance of this thread and that's the output of the two commands that the first answer advises to run: C:\Users\MyUser>java -version (The fact that I can run the Java applications I'm creating and not external ones is a bit weird). What have I tried: I read this thread from stackoverflow, but I don't want to build my own JRE, just have one on my computer capable of running the java applications I have already installed. I thought that the OpenJDK provides me all the tools to make Java applications run, but I'm surely missing something. However, I have another program (not developed by me) which stopped working complaining that it needs a Java Runtime Environment. Then I've installed the Eclipse IDE and everything worked fine. In order to install it I simply unzipped the jdk in another folder and set the JAVA_HOME environment variable accordingly. I recently uninstalled all Oracle Java products and installed OpenJDK from, on my Windows 10 system, because I'm planning to develop some Java applications.
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