Jvm architecture Method Area Explained

1. JVM Architecture
Method Area
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2. Method Area
• Type Information
• Constant Pool
• Field Information
• Method table
• Method Information
• Class variable
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3. Method Area
• Type Information
• Constant Pool
• Field Information
• Method table
• Method Information
• Class variable
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Fully qualified type’s name.
 Fully qualified direct super
class name.
 Is class or interface ?
 type's modifiers
 list of the fully qualified
names of any direct super
interfaces

4. Method Area
• Type Information
• Constant Pool
• Field Information
• Method table
• Method Information
• Class variable
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 Ordered set of constants
- string
- integer
- floating point
- final variables
 symbolic references to
- types
- fields
- Methods

5. Method Area
• Type Information
• Constant Pool
• Field Information
• Method table
• Method Information
• Class variable
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 field’s name
 field’s type
 field’s modifiers (subset )
- public
- private
- protected
- static
- final
- volatile
- transient

6. Method Area
• Type Information
• Constant Pool
• Field Information
• Method Information
• Method table
• Class variable
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 Method’s name
 Method’s return type
 Number and type of
parameters
 Modifiers (subset)
- public
- private
- protected
- static
- final
- synchronized
- native
- abstract

7. Method Area
• Type Information
• Constant Pool
• Field Information
• Method Information
• Method table
• Class variable
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Hold refrence to Method
Information

8. Method Area
• Type Information
• Constant Pool
• Field Information
• Method table
• Method Information
• Class variable
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Hold static variable
, class variables

9. Thanks
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