Java Objects and Memory control

1.1 Instance variables and class variables

member variables and local variables:

Local variables fall into three main categories:

1) Formal parameter: The local variable defined in the method signature, assigned by the method caller, dies with the end of the method.

2) Local variables within the method: local variables defined within the method, which die out with the end of the method.

3) Local variables within code blocks: local variables defined within a block of code that die out with the end of a block of code.

Local variables have a short acting time, and they are all in the stack memory of the method being used.

Java Objects and Memory control