Glossary of Terms

Java Virtual Machine

Keyword Definition
Bytecode A compiled version of Java source code designed to be executed by the Java Virtual Machine.
Classloader A subsystem that is responsible for loading class files into the Java Virtual Machine.
Execution Engine The component responsible for executing the instructions contained in loaded classes.
Garbage Collection An automatic memory management process that reclaims memory occupied by objects that are no longer in use.
JIT Compiler A component that improves the performance of Java applications by compiling bytecode into native machine code at runtime.
Platform Independence The ability of a program to run on different operating systems without modification.
Security Manager A feature that enforces access controls during code execution to protect the system from untrusted code.
Stack A data structure used by the Java Virtual Machine to manage method calls and local variables.