Vehicle{abstract}+move() (abstract)+carryCargo:Truck-_weight: int+Truck(int)+Truck0+moveOil Tanker-_capacity: int+OilTanker(int, int)+OilTanker(int)+move(#_numberOfPeople: int+Car(int)+CaroCar+holdPeople(int): boolean+move«>>PeopleHauler+holdPeople(int): boolean+moveConsider the UML diagram above: suppose the statementsuper.carryCargo();appears is the body of the carryCargo() method of Oiltanker. Which method does the statement invoke?O A. The carryCargo method defined in TruckO B. The carryCargo method defined in Oil TankerO C. None of the aboveO D. The carryCargo method defined in Vehicle Consider the following Java interface definition:public interface Mover {public int getX();public int getY();public void setLocation(int x, int y);}Which of the following is a correct implementation of the Mover interface?O A. public class Cartoon Character implements Mover{private int x, y;public int getX() {public int getY() {}O B. public class Cartoon Character implements Mover{private int x, y;public int getX();public int getY();public void setLocation(int x, int y);// code for method body}// code for method body}}O C. public class Cartoon Character implements Mover{private int x, y;public int getX;public int getY;public void setLocation;}O D. public class Cartoon Character implements Mover{private int x, y;public int getX() {// code for method body}public int getY() {// code for method body}public void setLocation(int x, int y){ // code for method body}}

Option A. CarryCargo method defined in the truck is the correct answer since it has the body…

Vehicle {abstract) +move (abstract) +carryCargo0: Truck -_weight: int +Truck(int) +Truck0 +move Oil Tanker -_capacity: int +OilTanker(int, int) +OilTanker(int) +move( #_numberOfPeople: int +Car(int) +Caro Car +holdPeople(int): boolean +move «> PeopleHauler +holdPeople(int): boolean +move Consider the UML diagram above: suppose the statement super.carryCargo(); appears is the body of the carryCargo() method of Oiltanker. Which method does the statement invoke? O A. The carryCargo method defined in Truck O B. The carryCargo method defined in OilTanker O C. None of the above O D. The carryCargo method defined in Vehicle

Vehicle {abstract) +move (abstract) +carryCargo0: Truck -_weight: int +Truck(int) +Truck0 +move Oil Tanker -_capacity: int +OilTanker(int, int) +OilTanker(int) +move( #_numberOfPeople: int +Car(int) +Caro Car +holdPeople(int): boolean +move «> PeopleHauler +holdPeople(int): boolean +move Consider the UML diagram above: suppose the statement super.carryCargo(); appears is the body of the carryCargo() method of Oiltanker. Which method does the statement invoke? O A. The carryCargo method defined in Truck O B. The carryCargo method defined in OilTanker O C. None of the above O D. The carryCargo method defined in Vehicle

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

OOPs

In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.

Constructor

The easiest way to think of a constructor in object-oriented programming (OOP) languages is:

Question

Vehicle
{abstract}
+move() (abstract)
+carryCargo:
Truck
-_weight: int
+Truck(int)
+Truck0
+move
Oil Tanker
-_capacity: int
+OilTanker(int, int)
+OilTanker(int)
+move(
#_numberOfPeople: int
+Car(int)
+Caro
Car
+holdPeople(int): boolean
+move
«<interface>>>
PeopleHauler
+holdPeople(int): boolean
+move
Consider the UML diagram above: suppose the statement
super.carryCargo();
appears is the body of the carryCargo() method of Oiltanker. Which method does the statement invoke?
O A. The carryCargo method defined in Truck
O B. The carryCargo method defined in Oil Tanker
O C. None of the above
O D. The carryCargo method defined in Vehicle

Consider the following Java interface definition:
public interface Mover {
public int getX();
public int getY();
public void setLocation(int x, int y);
}
Which of the following is a correct implementation of the Mover interface?
O A. public class Cartoon Character implements Mover{
private int x, y;
public int getX() {
public int getY() {
}
O B. public class Cartoon Character implements Mover{
private int x, y;
public int getX();
public int getY();
public void setLocation(int x, int y);
// code for method body}
// code for method body}
}
O C. public class Cartoon Character implements Mover{
private int x, y;
public int getX;
public int getY;
public void setLocation;
}
O D. public class Cartoon Character implements Mover{
private int x, y;
public int getX() {
// code for method body}
public int getY() {
// code for method body}
public void setLocation(int x, int y){ // code for method body}
}

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