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Which of the following best describes how Java stores reference variables?

easy📝 Conceptual Q2 of 15
Java - Memory Management Basics
Which of the following best describes how Java stores reference variables?
AThey store the actual object data directly
BThey store the object's class name
CThey store a copy of the object's fields
DThey store the memory address of the object
Step-by-Step Solution
Solution:

  1. Step 1: Understand reference variable storage

    Reference variables store the memory address (reference) of the object, not the object data itself.

  2. Step 2: Differentiate from primitive storage

    Unlike primitives, references point to objects located elsewhere in memory.

  3. Final Answer:

    They store the memory address of the object -> Option D

  4. Quick Check:

    Reference storage = memory address [OK]
Quick Trick: References hold addresses, not actual object data [OK]
Common Mistakes:
  • Assuming references store object data directly
  • Confusing references with primitive values

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