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What is autoboxing in Java?

easy📝 Conceptual Q11 of 15
Java - Wrapper Classes

What is autoboxing in Java?

AManual conversion of objects to primitive types
BA way to box multiple objects into an array
CA method to convert strings to numbers
DAutomatic conversion of primitive types to their wrapper class objects
Step-by-Step Solution
Solution:

  1. Step 1: Understand primitive and wrapper classes

    Java has primitive types like int and wrapper classes like Integer that represent them as objects.

  2. Step 2: Define autoboxing

    Autoboxing is the automatic conversion from a primitive type to its corresponding wrapper class object by the compiler.

  3. Final Answer:

    Automatic conversion of primitive types to their wrapper class objects -> Option D

  4. Quick Check:

    Autoboxing = automatic primitive to object conversion [OK]
Quick Trick: Autoboxing means Java converts primitives to objects automatically [OK]
Common Mistakes:
  • Confusing autoboxing with unboxing
  • Thinking autoboxing requires manual code
  • Mixing up primitive to object with object to primitive

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