Java Yöntemleri

Question

What I am asked to do

Ben şu anda tamamlamak çalışılıyor geçen yazıda verilen am talimatların bir resim eklenmiş.

Yaz mevsiminde sınava kadar bir Üniversite stajı sınavını bitiriyorum. Şimdiye kadar soru kağıtlarının çoğunu bitirdim ancak şu anda bu kısımda takılıyorum.

Belirtildiği gibi arabirimleri uyguladım ve ayrıca yönler adlı bir enum uyguladım. Eğlence Robotu sınıfındaki "Walk and Talk yöntemleri için Detaylar" yazan yerde, girişi kullanıcı olarak bir enum olarak nasıl saklayacağımı bilmiyorum. Kodum şu ana kadar aşağıda listelenmiştir. Bunun için herhangi bir yardım isterim. Çok teşekkürler.

package Program; 

import java.util.Scanner; 


public abstract class Robot { 

    //instance variables 
    protected double EnergyUnitsRequired; 
    protected double height; 
    protected String manufacturer; 
    protected String name; 
    protected String purpose; 
    protected double weight; 
    protected double energy; 
    private Directions direction; 

    //constructor 
    public Robot(String name, double height, double weight, String manufacturer) { 
     super(); 
     this.EnergyUnitsRequired = 0.25; 
     this.height = height; 
     this.manufacturer = manufacturer; 
     this.name = name; 
     this.purpose = "The robot's purpose needs to be provided"; 
     this.weight = weight; 
     this.energy = 0.0; 
    } 

    //accessors & mutators 
    public double getEnergyUnitsRequired() { 
     return EnergyUnitsRequired; 
    } 

    public double getHeight() { 
     return height; 
    } 

    public String getManufacturer() { 
     return manufacturer; 
    } 

    public String getName() { 
     return name; 
    } 

    public String getPurpose() { 
     return purpose; 
    } 

    public double getWeight() { 
     return weight; 
    } 

    public double getEnergy() { 
     return energy; 
    } 

    public void setEnergyUnitsRequired(double energyUnitsRequired) { 
     EnergyUnitsRequired = energyUnitsRequired; 
    } 

    public void setHeight(double height) { 
     this.height = height; 
    } 

    public void setManufacturer(String manufacturer) { 
     this.manufacturer = manufacturer; 
    } 

    public void setName(String name) { 
     this.name = name; 
    } 

    public void setPurpose(String purpose) { 
     this.purpose = purpose; 
    } 

    public void setWeight(double weight) { 
     this.weight = weight; 
    } 

    public Directions getDirection() { 
     return direction; 
    } 


    public void setDirection(Directions direction) { 
     this.direction = direction; 
    } 

    //methods 
    public abstract void start(); 
    public abstract void stop(); 
    public abstract void doTask(); 
    public abstract void doTask(Scanner input); 

    public void energyConsumption() { 
     System.out.println("The robot: " + getName() + " has: " + getEnergy() + " to begin with."); 
     double priorEnergy = getEnergy(); 
     energy = energy - energyRequired(); //the variable energyRequired should be returned from the energyRequired method below this method. 
     System.out.println("My energy has depleted by the following amount: " + (priorEnergy - energy) + " units."); 
     System.out.println("My energy is now at: " + energy + " units."); 
    } 

    public double energyRequired() { 
     double energyRequired = (EnergyUnitsRequired * weight); 
     return energyRequired; 
    } 

    public void regenerate() { 
     energy = getEnergy() + (getWeight() * 2); 
     System.out.println("More energy is being generated for the robot."); 
     System.out.println("............................"); 
     System.out.println("I have now got more energy!."); 
    } 
} 

package Program; 

import java.util.Scanner; 

public class HumanStudyRobot extends Robot { 

    //instance variables 

    public HumanStudyRobot(String name, double height, double weight, String manufacturer) { 
     super(name, height, weight, manufacturer); 
     this.energy = 30.0; 
    } 

    @Override 
    public void start() { 
     System.out.println("This is a Human Study Robot"); 
     System.out.println("The robot has started studying."); 
    } 

    @Override 
    public void stop() { 
     System.out.println("The robot has finished studying."); 
    } 

    @Override 
    public void doTask() { 
    study(); 
    } 

    @Override 
    public void doTask(Scanner input) { 
     // TODO Auto-generated method stub 

    } 

    public void study() { 
    if (energy >= energyRequired()) { 
     energyConsumption(); 
    } 
    else 
     if (energy < energyRequired()) { 
      System.out.println("The robot does not have sufficient energy."); 
      regenerate(); 
      System.out.println("................"); 
      System.out.println("The robot has finished regenerating"); 
     } 
    } 


    public String toString() { 
     return "I AM A HUMAN STUDY ROBOT : \nThe details of the entertainment robot are below:\n" 
       + "Name : " + getName() + "\nWeight: " + getWeight() + "\nHeight: " 
       + getHeight() + "\nManufacturer : " + getManufacturer() + "\nPurpose : " 
       + getPurpose(); 
    } 

} 

package Program; 

import java.util.Scanner; 

import org.omg.Messaging.SyncScopeHelper; 

public class EntertainmentRobot extends Robot { 

    //constructor 
    public EntertainmentRobot(String name, double height, double weight, String manufacturer) { 
     super(name, height, weight, manufacturer); 
     this.energy = 10.0; 
     this.EnergyUnitsRequired = 0.75; 
    } 

    @Override 
    public void start() { 
     System.out.println("This is an Entertainment Robot. \nThe robot has started entertaining."); 
    } 

    @Override 
    public void stop() { 
     System.out.println("I have stopped entertaining people."); 
     System.out.println("--------------------------------------------------"); 
    } 

    @Override 
    public void doTask(Scanner input) { 
     play(); 
    } 


    @Override 
    public void doTask() { 
     // TODO Auto-generated method stub 
    } 

    public void talk() { 
     Scanner input = new Scanner(System.in); 
     System.out.println("Please enter a phrase for me to repeat"); 
     String phrase = input.nextLine(); 
     input.nextLine(); 
     System.out.println("You have asked me to say the following phrase : " + phrase); 
    } 

    public void walk() { 
     Scanner input = new Scanner (System.in); 
     System.out.println("Would you like me to walk for you?"); 
     if (input.nextLine().equalsIgnoreCase("Y")) { 
      System.out.println("For how many paces"); 
      int steps = input.nextInt(); 
      System.out.println("Which direction do you want me to walk? (Enter a number between 1 and 4.) "); 
      System.out.println("1 - " + Directions.FORWARD); 
      System.out.println("2 - " + Directions.BACKWARD); 
      System.out.println("3 - " + Directions.LEFT); 
      System.out.println("4 - " + Directions.RIGHT); 

     } 
    } 

    public void play() { 
     Scanner input = new Scanner(System.in); 
     boolean valid = false; 
     int selection; 
     do { 
     System.out.println("How many times would you like to play?"); 
     while (!input.hasNextInt()) { 
      System.out.println("That is not a number"); 
      input.nextLine(); 
     } 
     selection = input.nextInt(); 
     valid = true; 
     } while(!valid); 
     for (int i = 1; i < selection + 1; i ++) { 
      if (getEnergy() >= energyRequired()) { 
       energyConsumption(); 
      } else if (getEnergy() < energyRequired()) { 
       System.out.println("------------WHOOPS--------------."); 
       System.out.println("I do not have enough energy to play."); 
       regenerate(); 
      } 
     } 
     input.close(); 
    } 

    public String toString() { 
     return "---------------------------------\nI AM AN ENTERTAINMENT ROBOT \nThe details of the entertainment robot are below: \n" + 
       "Name : " + getName() + "\nWeight: " + getWeight() + "\nHeight: " + getHeight() + "\nManufacturer: " + 
       getManufacturer() + "\nPurpose: " + getPurpose() + "\n----------------------------"; 
    } 

} 

package Program; 

import java.util.Scanner; 

public interface Talkable { 
    abstract void talk(Scanner input); 
} 

package Program; 

import java.util.Scanner; 

public interface Walkable { 
    abstract void walk(Scanner input); 
} 

package Program; 

public enum Directions { 
    FORWARD,BACKWARD,LEFT,RIGHT; 
} 

Answer 1

depola gibi enum kendisinde bir yön tuşu: Bir kullanıcı bir numarayı girer Sonra

public enum Direction { 

    FORWARD(1), BACKWARD(2), LEFT(3), RIGHT(4); 

    final int num; 

    Direction(int num) { 
     this.num = num; 
    } 

    static Direction ofNumber(int num) { 
     for (Direction d : values()) 
      if (d.num == num) 
       return d; 
     return null; 
    } 
} 

, sadece çağrı:

Direction selected = Direction.ofNumber(number);