Question

I am learning java and right now
i am stuck at memory allocation of object’s and local variables.
can any one illustrate or clear some of my doubts??

1. I read about Heap and Stack Memory for Object’s instance
   Variable’s and Local Variable’s. I have question whether a new
   STACK is being created for each method?? or for each class of a
   single stack is used by a whole class??
2. I had read that ONE STACK
   is being created by every thread What is means

Thanks
Mahaveer

Answer 1

• Each thread has a private stack.
• Each method has a private stack frame within that thread’s stack.

Stacks are associated with thread in a one-to-one mapping. Stacks are absolutely not associated with methods and classes.

The way to reason about all this is that the local variables of a method are private to each invocation of that method.