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What is the primary effect of unboxing when converting a wrapper class object to a primitive type in Java?

easy📝 Conceptual Q1 of 15
Java - Wrapper Classes
What is the primary effect of unboxing when converting a wrapper class object to a primitive type in Java?
AIt extracts the primitive value from the wrapper object
BIt converts a primitive type into a wrapper object
CIt creates a new wrapper object from a primitive
DIt casts a primitive type to another primitive type
Step-by-Step Solution
Solution:

  1. Step 1: Understand wrapper classes

    Wrapper classes like Integer, Double hold primitive values as objects.

  2. Step 2: Define unboxing

    Unboxing extracts the primitive value from the wrapper object automatically.

  3. Final Answer:

    It extracts the primitive value from the wrapper object -> Option A

  4. Quick Check:

    Unboxing means object to primitive conversion [OK]
Quick Trick: Unboxing extracts primitive from wrapper object [OK]
Common Mistakes:
  • Confusing unboxing with boxing (primitive to object)
  • Thinking unboxing creates new objects
  • Assuming unboxing changes primitive types

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