JDK (Java Development Kit), which includes JRE plus the development tools (such as compiler and debugger), is need for writing (developing) as well as running Java programs. JRE (Java Runtime) is needed for running Java programs. Still – You should keep in mind that screenshots and versions might vary little bit, but most of the time process of installing remains same. I will try my level best to update this document as and when required. At the time of writing this article – it does talks about the latest version of Java JDK, which might not be same at the time you are reading this document and installing Java JDK. IMPORTANT : This tutorial is just to help you learn how to install Java JDK/Java SE on your own. The JDK or Java Development Kit can be freely downloaded from official website of Sun Microsystems which is now very much the part of Oracle. JDK is also known as “Java Platform, Standard Edition” or simply Java SE. Don’t worry about jdk-10.0.1 as this might change for future releases.To code in Java, you need Java Development Kit (JDK). Set your JAVA_HOME environment with Sys.setenv(JAVA_HOME="C:/Program Files/Java/jdk-10.0.1/") so that it points to your specific (64-bit in my case) folder that contains the jdk. Install rJava with install.packages("rJava"). Conversely, if you installed 64-bit then everything should be installed in C:/Program Files/Java/. If you installed 32-bit Java then everything should be saved in C:/Program Files (x86)/Java/. For 64-bit I had to download the Windows version from here. I had 64 bit so I downloaded the Offline 64-bit version from here.ĭownload Java JDK for 32/64 bit. R and Java must have the same memory signature, either 32 or 64 bit. Check Platform.ĭownload the specific 32/64 bit of Java.
Post here the steps that made it work in case anyone is interested (that is, future me).Ĭheck whether R is 32/64 bit with sessionInfo(). Struggled for about two hours to install rJava on my Windows 10 machine.
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