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Core Java - Interview Questions and Answers for 'Stack memory' - 4 question(s) found - Order By Newest

  Q1. Which are the different segments of memory ?Core Java
Ans. 1. Stack Segment - Contains primitives, Class / Interface names and references.

2. Heap Segment - Contains all created objects in runtime, objects only plus their object attributes (instance variables), Static variables are also stored in heap.

3. Code Segment - The segment where the actual compiled Java bytecodes resides when loaded

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   Like         Discuss         Correct / Improve     java   memory   memory management   stack memory   heap memory   code segment memory   advanced     Asked in 9 Companies      expert        frequent
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 Q2. Which kind of memory is used for storing object member variables and function local variables ?
Ans. Local variables are stored in stack whereas object variables are stored in heap.

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 Q3. Why do member variables have default values whereas local variables don't have any default value ?
Core Java
Ans. member variable are loaded into heap, so they are initialized with default values when an instance of a class is created. In case of local variables, they are stored in stack until they are being used.

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 Q4. Difference between Stack and Heap memory ?Core Java
Ans. Stack memory areas is used to hold method and local variables while objects are always allocated memory in the heap. The heap memory is shared between multiple threads whereas Stack memory isn't.

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