Answered

At Westonci.ca, we make it easy to get the answers you need from a community of informed and experienced contributors. Connect with a community of experts ready to help you find solutions to your questions quickly and accurately. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

Consider the following class definitions.public class Bike{private int numWheels = 2;// No constructor defined}public class EBike extends Bike{private int numBatteries;public EBike(int batteries){numBatteries = batteries;}}The following code segment appears in a method in a class other than Bike or EBike.EBike eB = new EBike(4);Which of the following best describes the effect of executing the code segment?А. An implicit call to the zero-parameter Bike constructor initializes the instance variable numwheels. The instance variable numBatteries is initialized using the value of the parameter batteries.
B. An implicit call to the one-parameter Bike constructor with the parameter passed to the EBike constructor initializes the instance variable numwheels. The instance variable numBatteries is initialized using the value of the parameter batteries. C. Because super is not explicitly called from the EBike constructor, the instance variable numWheels is not initialized. The instance variable numBatteries is initialized using the value of the parameter batteries.
D. The code segment will not execute because the Bike class is a superclass and must have a constructor. E The code segment will not execute because the constructor of the EBike class is missing a second parameter to use to initialize the numWheels instance variable.

Sagot :

Answer:

The answer is "Option A".

Explanation:

Please find the complete program in the attached file.

The given program includes a super-class Bike having a private integer numWheels parameter. The class EBike inherits the class Bike, EBike comprises one parameter function Object() which utilizes its variable number of the private integer Battery level of the battery parameter and the wrong choice can be defined as follows:

In choice B, it is wrong since there is no constructor with a single argument in the Bike class.

In choice C, it is wrong since there no need to call the base class constructor with the super keyword.

In choice, D is wrong because there no need to create a constructor of the base class.

In choice, E is wrong because it does not require the second EBike constructor parameter.

View image codiepienagoya
MrRoyal

The statement that best describes the effect of executing the code segment is (a) an implicit call to the zero-parameter Bike constructor initializes the instance variable numwheels. The instance variable numBatteries is initialized using the value of the parameter batteries.

Given that the following object is defined in another class (say the Main class)

EBike eB = new EBike(4);

Also, the class Bike is a super class of the class EBike, where Ebike inherits the properties of class Bike.

It means that:

Option (a) is correct.

This is so, because:

  1. An implicit call of one parameter to class cannot be used, as in option B.
  2. It is not necessary to call the Bike class, as in option C.
  3. It is not necessary to create a constructor of the EBike class, as in option D.

Read more about classes at:

https://brainly.com/question/24532559

Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Get the answers you need at Westonci.ca. Stay informed by returning for our latest expert advice.