Java (JVM) Memory Types

Java Virtual Machine is a program/software which takes Java bytecode (.class files)

and converts the byte code (line by line) into machine understandable code.

JVM contains a module known as a class loader. A class loader in JVM loads, links and, initializes a program. It−

• Loads the class into the memory. 
• Verifies the byte code instructions.
• Allocates memory for the program.

The memory in the JVM is divided into five different parts namely− Method area− The method area stores the class code − code of the variables and methods. 

Heap − The Java objects are created in this area. 

Java Stack− While running methods the results are stored in the stack memory. PC registers− These contain the address of the instructions of the methods. 

Native method stacks− Similar to Java stack, native methods are executed on the Native method stacks.

Kumar Varma

Published on 09-Feb-2018 11:20:35

• Related Questions & Answers
• Java (JVM) memory model
• How many types of memory areas are allocated by JVM in java?
• Where does Array stored in JVM memory in Java?
• Verification in Java (JVM)
• What is Cache Memory? (Functions and Types of Cache Memory)
• Understanding memory types in Arduino Uno
• JVM shutdown hook in Java
• What is JVM, Java virtual machine?
• Explain Java Virtual Machine (JVM) Architecture
• What is Java Virtual Machine (JVM)?
• Java Virtual Machine (JVM) Stack Area
• JVM Stacks
• Java Memory Model
• How JVM works?
• What are Java JVM Run-time Data Areas?