When the object of a subclass is created, the constructor of the superclass is executed first.
In a class hierarchy, constructors are executed in order of derivation, from superclass to subclass.
The super() function must be the first statement executed in the constructor of a subclass.
The execution order of the constructors is the same, regardless of whether super() is used or not.
If super() is not used, the default constructor of the superclass will be executed.
Constructors are executed in derivation order.
The superclass must complete its execution before the subclass, as it has no knowledge of the subclasses.
Superclass initialization can be a prerequisite for subclass initialization, justifying the order of execution.
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