Chapter 8, Problem 15E

Explanation of Solution

Virtual Machine:

• Java Virtual Machine (JVM) executes a Java class file.
• JVM is not a real machine; it is a software layer that is between the operating system and the application program.
• Java Virtual Machine (JVM) is a virtual machine which has its own set of memory, method area, and native method area, and all are being shared among all processes running within the virtual machine.
• Therefore, the execution environment of a Java class is known as a virtual machine.

Comparison between virtual machine and real machine:

In the following ways, Java Virtual Machine (JVM) is related to a real machine running code written in C:

• Real machine requires more memory, but virtual machine requires less memory...