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Java Memory Allocation

Here are 10 essential multiple-choice questions on Java Memory Allocation, covering key concepts.

Last Updated : Apr 28, 2025

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Question 1

In Java, which part of the memory is responsible for storing object instances?

A
Stack Memory
B
Heap Memory
C
Method Area
D
Native Memory

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Question 2

Which of the following describes the purpose of the Stack Memory in Java?

A
Stores global variables
B
Stores references to objects and local variables
C
Stores the JVM class files
D
Stores object data and arrays

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Question 3

How does Java handle memory management for objects that are no longer referenced?

A
Objects are deleted manually
B
Objects are automatically moved to disk
C
Objects are moved to Stack Memory
D
Objects are marked for garbage collection

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Question 4

Which of the following is true about Garbage Collection (GC) in Java?

A
GC is manual, and developers must call it explicitly
B
GC is used to clean unused classes only
C
GC automatically frees up memory by removing unreferenced objects
D
GC occurs only when the system memory is full

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Question 5

Which method is used to explicitly request garbage collection in Java?

A
System.gc()
B
Object.releaseMemory()
C
GarbageCollector.run()
D
MemoryManager.cleanup()

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Question 6

Where does the Method Area in Java store class-level information?

A
Heap Memory
B
Stack Memory
C
The JVM's permanent generation
D
The ClassLoader

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Question 7

What happens when an object is created in Java?

A
The object is created in Stack Memory
B
The object is created in Heap Memory
C
The object is created in Method Area
D
The object is created in the CPU register

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Question 8

In Java, how is Stack Memory used during method execution?

A
Stack Memory stores class variables
B
Stack Memory is used for allocating objects
C
Stack Memory is used to store method calls and local variables
D
Stack Memory is used to store garbage objects

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Question 9

Which of the following statements is true about Heap Memory in Java?

A
Heap Memory is shared by all threads
B
Heap Memory is only used by local methods
C
Objects in Heap Memory are automatically deallocated when the method ends
D
Heap Memory is used to store static variables

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Question 10

How does Java handle memory allocation for primitive types such as int or char?

A
They are stored in Heap Memory
B
They are stored in Stack Memory
C
They are stored in the Method Area
D
They are allocated in Permanent Generation

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