Can you name different types of memory used in Java and their features?

Java uses several types of memory that manage the lifecycle of objects and data:

1. Heap — the main area for storing objects and arrays. Managed by the garbage collector. Objects live here as long as there are references to them.

2. Stack — stores local variables and method calls for each thread. Each thread has its own stack.

3. Method Area — stores class information, static variables, constants, and bytecode of methods.

4. PC Register — stores the address of the current instruction being executed for each thread.

5. Native Method Stack — used for calling native (non-Java) methods.

Features:

• Heap is shared among all threads.
• Stack is isolated for each thread, ensuring the safety of local variables.
• Garbage collector works in the heap, automatically freeing unused memory.