JDK JRE JVM 的区别

• • • 1.JDK
    • 2.JRE
    • 3.JVM

Java Development Kit (JDK) is a software development environment used for developing Java applications and applets. It includes the Java Runtime Environment (JRE), an interpreter/loader (Java), a compiler (javac), an archiver (jar), a documentation generator (Javadoc), and other tools needed in Java development.

JRE stands for “Java Runtime Environment” and may also be written as “Java RTE.”

Now let us discuss JVM, which stands out for java virtual machine. It is as follows:

A specification where the working of Java Virtual Machine is specified. But implementation provider is independent to choose the algorithm. Its implementation has been provided by Sun and other companies.
An implementation is a computer program that meets the requirements of the JVM specification.
Runtime Instance Whenever you write a java command on the command prompt to run the java class, an instance of JVM is created.

https://www.geeksforgeeks.org/differences-jdk-jre-jvm/