If a subclass constructor does not explicitly call a superclass constructor,
A) the superclass's fields will be set to the default values for their data types
B) Java will automatically call the superclass's default constructor immediately after the code in the subclass's constructor executes
C) it must include the code necessary to initialize the superclass fields
D) Java will automatically call the superclass's default constructor just before the code in the subclass's constructor executes

Question

Quizplus · Accepted Answer

Java automatically calls the superclass's default (no-argument) constructor at the beginning of the subclass's constructor if the subclass constructor does not explicitly call a superclass constructor. This ensures that the superclass is properly initialized before the subclass's constructor executes its own initialization code.

If a Subclass Constructor Does Not Explicitly Call a Superclass