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What is runtime polymorphism in Java?

easy📝 Conceptual Q11 of 15
Java - Polymorphism
What is runtime polymorphism in Java?
ACreating multiple objects of the same class
BUsing multiple classes with the same name
CChoosing which method to call during program execution based on object type
DWriting methods with different names in the same class
Step-by-Step Solution
Solution:

  1. Step 1: Understand polymorphism concept

    Polymorphism means many forms; in Java, it allows methods to behave differently based on object type.

  2. Step 2: Identify runtime polymorphism

    Runtime polymorphism happens when the program decides which overridden method to call during execution, not before.

  3. Final Answer:

    Choosing which method to call during program execution based on object type -> Option C

  4. Quick Check:

    Runtime polymorphism = method choice at runtime [OK]
Quick Trick: Runtime polymorphism means method choice happens while running [OK]
Common Mistakes:
  • Confusing compile-time and runtime polymorphism
  • Thinking it means multiple classes with same name
  • Believing it is about method overloading

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