Let us now compare Java Virtual Machine, JRE, and JDK. The following are the key distinctions between JDK, JRE, and JVM.
| Sr. No. | Key | JDK | JRE | JVM |
|---|---|---|---|---|
| 1 | Definition | The Java Development Kit (JDK) is a software development kit for creating Java applications. JDK includes a number of development tools in addition to JRE (compilers, JavaDoc, Java Debugger etc.). | JRE (Java Runtime Environment) is the JVM implementation and is defined as a software package that includes Java class libraries, a Java Virtual Machine (JVM), and other components for running Java applications. | JVM (Java Virtual Machine) is a platform-independent abstract machine with three concepts: specification, a document describing JVM implementation requirements, implementation, a computer program that meets JVM requirements, and instance, an implementation that executes Java byte code. |
| 2 | Prime functionality | JDK is a programming language that is primarily used for code execution and development. | JRE, on the other hand, is primarily responsible for creating the environment in which code can be executed. | JVM, on the other hand, specifies all implementations and is responsible for providing them to JRE. |
| 3 | Platform Independence | JDK is platform-dependent, which means that different JDKs are required for different platforms. | JRE, like JDK, is platform-dependent. | JVM is platform-independent. |
| 4 | Tools | Because JDK is in charge of primary development, it includes tools for creating, debugging, and monitoring Java applications. | JRE, on the other hand, does not include tools like a compiler or a debugger. Rather, it contains the class libraries and other supporting files required by JVM to run the program. | Software development tools are not included in the JVM. |
| 5 | Implementation | JDK = Java Runtime Environment (JRE) + Development tools | JRE = Java Virtual Machine (JVM) + Libraries to run the application | JVM = Only Runtime environment for executing the Java byte code. |
Note: also read about the Byte Code in Java
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Staying up to the mark is what defines me. Hi all! I’m Rabecca Fatima a keen learner, great enthusiast, ready to take new challenges as stepping stones towards flying colors.
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