1)What is difference between JDK,JRE and JVM?
JVM
| JVM is an acronym for Java Virtual Machine, it is an abstract machine which provides the runtime environment in which java bytecode can be executed. |
| JVMs are available for many hardware and software platforms (so JVM is plateform dependent). |
JRE
| JRE stands for Java Runtime Environment. It is the implementation of JVM and physically exists. |
JDK
| JDK is an acronym for Java Development Kit. It physically exists. It contains JRE + development tools. |
