Final answer:
The question asks for the definition of a default constructor that initializes certain fields of a class with default values. The constructor should set the string value 'Incomplete', an integer value 0, and the character 'N' as defaults for the renter, mileage, and weekendPrice fields, respectively. Mutator methods are used to update these values later.
Step-by-step explanation:
The student question pertains to writing a default constructor for a class, presumably in an object-oriented programming language such as Java or C++. A default constructor is a special constructor method that initializes object attributes to default values when no arguments are provided to the constructor.
A default constructor code snippet for a class named for example VehicleRental might look like this:
public class VehicleRental {
private String renter;
private int mileage;
private char weekendPrice;
public VehicleRental() {
this.renter = "Incomplete";
this.mileage = 0;
this.weekendPrice = 'N';
}
// ... Other methods such as setters and a print method ...
}
After defining the constructor that sets the default values, you would also implement mutator methods (also known as setters), which allow the modification of these fields after an object has been instantiated.The print() method is called to display the values of the fields before and after they are set using setter methods. The setter methods can be defined in the class to assign new values to the fields. After the mutation methods are called, the values of the fields renter, mileage, and weekendPrice will be updated with the values provided by the user.