1Z0-811 Java Basics and Syntax Practice Question
Which TWO statements about constructors are true? (Choose two.)
⚠ Common exam trap
Oracle often tests the misconception that constructors have a return type of void, or that the compiler always provides a default constructor, even when other constructors are defined.
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
✓
Constructors have no return type
Constructors in Java do not have a return type, not even void. If a return type is specified, the Java compiler treats the method as a regular method, not a constructor. This is a fundamental syntactic rule defined in the Java Language Specification (JLS §8.8).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Constructors have no return type
Why this is correct
Constructors are special methods with no return type.
- ✗
The compiler always provides a default constructor
Why it's wrong here
Only if no constructor is explicitly defined.
- ✓
A default constructor is provided if no constructor is defined
Why this is correct
If no constructor is defined, the compiler generates a default no-arg constructor.
- ✗
Constructors can be declared as abstract
Why it's wrong here
Constructors cannot be abstract or static.
- ✗
Constructors have a return type of void
Why it's wrong here
Constructors do not have any return type, not even void.
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