1Z0-811 Object-Oriented Programming Practice Question
A class that does not define any constructor has:
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A default no-argument constructor
Java automatically provides a default no-arg constructor with the same access as the class.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A private constructor
Why it's wrong here
Default constructor has same access as class, which is usually public if class is public.
- ✗
A public constructor with arguments
Why it's wrong here
Default constructor is no-arg.
- ✗
It cannot be instantiated
Why it's wrong here
It can be instantiated via the default constructor.
- ✓
A default no-argument constructor
Why this is correct
Java automatically provides a default no-arg constructor with the same access as the class.
- ✗
No constructor
Why it's wrong here
A default constructor is provided.
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