Recall & Review
beginner
What is stack memory in Java?
Stack memory is a special area of memory that stores method calls, local variables, and references during program execution. It works like a stack of plates, where the last item added is the first to be removed (LIFO).
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beginner
How does stack memory handle method calls?
Each time a method is called, a new block called a stack frame is created on top of the stack to hold that method's local variables and data. When the method finishes, its stack frame is removed.
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intermediate
What happens if the stack memory is full?
If the stack memory runs out of space, a StackOverflowError occurs. This usually happens when methods call themselves too many times (deep recursion).
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beginner
What kind of data is stored in stack memory?
Stack memory stores local variables, method parameters, and return addresses. It does NOT store objects themselves; objects are stored in heap memory, but references to them are kept on the stack.
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intermediate
Why is stack memory faster than heap memory?
Stack memory is faster because it uses a simple last-in, first-out structure and fixed size blocks for method calls. Heap memory is more complex because it manages dynamic memory allocation for objects.
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What does stack memory store in Java?
What error occurs when stack memory is full?
Which memory area stores Java objects?
What is a stack frame?
Why is stack memory faster than heap memory?
Explain how stack memory works during method calls in Java.
Describe the difference between stack memory and heap memory.