Differences between member variables and local variables:

Differences between member variables and local variables:

Differences between member variables and local variables:

1. Different Positions in the class

Member variable: in the class, out of the Method

Local variables: In method definition or method declaration

2. The locations in the memory are different:

Member variable: In heap memory

Local variable: in stack memory

3. different lifecycles:

Member variable: It exists with the creation of the object and disappears with the disappearance of the object

Local variable: It exists with the call of the method and disappears with the completion of the call of the method.

4. Different initialization values

Member variable: with default initialization value

Local variable: No Default initialization value. It must be defined and assigned values before use.

Note:

The local variable name can be the same as the member variable name. the proximity principle is used in methods.