First Move (11~18) - Code, Learn, Build
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First Move (11~18) - Code, Learn, Build

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← Java Enterprise Development|Level 2: Collections, Memory Management & Advanced Java Features

11. JVM Memory Management: Heap, Stack, Metaspace & Garbage Collection Internals

Lesson 11 of 25
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JVM Memory Management: Heap, Stack, Metaspace & Garbage Collection Internals

Explore Stack vs Heap memory allocation, Young Generation (Eden, Survivor S0/S1), Old Generation, Metaspace, G1GC, and ZGC Garbage Collectors.

JVM Generational Memory Heap Model

### JVM Memory Heap Architecture 1. **Young Generation**: Eden Space (where new objects are instantiated) + Survivor Spaces S0/S1. Minor GC collects short-lived objects. 2. **Old Generation**: Long-lived objects promoted after surviving N garbage collection cycles. Major/Full GC collects Old Gen. 3. **Metaspace**: Off-heap native memory storing class metadata, method bytecodes, and String Pool.
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