Summary of Java issues 18-member variables and local variables

Summary of Java issues 18-member variables and local variables

Member variables:
Member variables are defined in the class and can be accessed throughout the class.
Member variables are divided into class member variables and instance member variables, which exist in the heap memory where the object resides.
Member variables have default initialization values.
The permission modifier for a member variable can be selected as needed

Local variables:
Local variables are defined only within a local scope, such as within a method, within a code block, and so on.
Local variables exist in the stack memory.
The scope of the action ends, and the variable space is automatically freed.
A local variable has no default initialization value and must be explicitly initialized at a time.
Do not specify a permission modifier when declaring a local variable

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Summary of Java issues 18-member variables and local variables