Quick Answer
JVM (Java Virtual Machine) executes bytecode and provides memory management, GC, and security. JIT (Just-In-Time) compiler optimizes hot methods at runtime - compiles frequently executed bytecode to native machine code. Bytecode is the compiled output of Java source - platform-independent intermediary. JIT makes Java nearly as fast as C++ for long-running applications by optimizing hot paths.
Answer
JVM executes Java bytecode across platforms. Bytecode is the intermediate compiled code. JIT compiler converts bytecode to native machine code at runtime for faster execution.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
