A Maquina Virtual Java virtual machine is essentially a virtual machine which allows a computer to execute Java applications written in other languages and also Java byte code. This is an open source project of Sun Microsystems, which is very popular among Java developers and software developers alike. The JVm has a specification that formally defines what is actually needed in a Java VMs implementation. The major differences between a standard Java virtual machine and the JVm one are that the JVm's virtual machine can support the integration of multiple Java frameworks. As more frameworks are developed, a JVm will be able to support them too.
A Maquina Virtual Java virtual machine runs on any version of Java SE (Java Development Kit) as long as the runtime environment supports the JVm specification. There is no difference between a standard Java virtual Machine and the JVm. A standard Java Virtual Machine does not require a high level of Java knowledge in order to be used. In addition, a standard Java virtual Machine does not have all the facilities of a JVm as most of its facilities are available for free with the use of the OpenJDK (Open Source Java Development Kit). These facilities include:
The Open Source JDK is based on Java SE but it has certain additional facilities which help in generating the byte code and execute the Java applications. Most of these facilities are accessible through the use of an interpreter, which translates a Java program written in Java SE into a language that can be executed by the machine. The Open JDK is a free download from the OpenJDK website. However, there are certain differences between the Open JDK and the standard Java Virtual Machine. One major difference is that the Open JDK allows the integration of multiple OpenJDK compatible frameworks, making it easier for you to use different frameworks at the same time.
