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In Java, static methods and static variables are tied to the class rather than any specific object. This means they are loaded into memory once per class loader and shared across all instances.
Memory location before Java 8:
Stored in the Permanent Generation (PermGen) area, which held class metadata, static variables, and methods.
PermGen had a fixed size, making it prone to OutOfMemoryError if too many classes were loaded.
Memory location from Java 8 onwards:
PermGen was replaced by Metaspace, which stores only class metadata.
Static variables and static methods are now stored in the Java Heap along with other objects, while their metadata remains in Metaspace.
This change allows dynamic sizing of Metaspace, reducing memory issues.
Execution behavior:
java - What is the actual memory place for static variables?
4 جولائی، 2011 · The static variables are provided the memory in the the same memory segment where the code is stored i.e. Class Area. It is independent of the stack or heap segment of memory.
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Memory | Methods in Java Classes
When a class is loaded into memory, its static fields and the code of its methods (along with that of its constructors, static and non- static initializers, etc.) are loaded into this area of memory.
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19 جنوری، 2025 · By understanding how memory references, garbage collection, and the JVM's memory model work, you can optimize your applications for better performance and avoid common memory …
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12 نومبر، 2025 · This blog will delve into the fundamental concepts of Java in-memory, explore various usage methods, discuss common practices, and present best practices to help you make the most of …
Stack Memory and Heap Space in Java - Baeldung
1 جولائی، 2024 · Explore how Stack Memory and Heap Space works and when to use them for developing better Java programs.
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