The class libraries are present within the JRE to assist the JVM in loading, verifying, and executing the codes. The Java Runtime Environment is comprised of the Java Virtual Machine and class libraries. The JVM provides the environment necessary for code executions. The Java Virtual Machine is included in the Java Runtime Environment package because the JRE software uses the JVM to run compiled codes. To allow the Java Runtime Environment to run codes, the Java Development Kit includes debuggers that test and find errors in the written language as well as the Java Compiler to compile the codes. Both the JRE and JVM are located within the JDK along with development tools. The Java Development Kit is equipped with the mechanisms necessary to convert the Java source code into formats that the JRE and JVM can implement. The Java Runtime Environment edition does not include the development tools that are needed to create Java programs. Two additional platforms that were created by Oracle are the Java Development Kit and the Java Virtual Machine: the JDK and JVM. Developed and released by Oracle, the freeware has been specifically created for Java content. To run apps written in the Java programming language, people need to have the app version installed on their computer. Layered on top of operating systems, the JRE runs Java applications by supplying the class libraries and environment. It is compatible with Apple Mac, Linux, and Microsoft Windows electronics on both 32-bit and 64-bit operating systems. Java Runtime Environment is a free program that lets people run Java computer software on their devices.

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