You need the JDK to convert your source code into a format that the Java Runtime Environment (JRE) can execute . The JDK includes the Java Runtime Environment (JRE), an interpreter (java), a compiler (javac), an archiver (jar), a documentation generator (javadoc), and some other development tools.
Read moreWhat is JDK vs Java?
JDK is a software development kit whereas JRE is a software bundle that allows Java program to run, whereas JVM is an environment for executing bytecode . The full form of JDK is Java Development Kit, while the full form of JRE is Java Runtime Environment, while the full form of JVM is Java Virtual Machine.
Read moreDo I need Java or JDK?
A copy of the latest OpenJDK comes bundled with Android Studio 2.2 and higher, and this is the JDK version we recommend you use for your Android projects. So if you are using the newest version, you won’t need any additional JDK.
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