Question

Susceptible.java

interface Susceptible

{

public boolean infect(Disease disease);

public void forceInfection(Disease disease);

public Disease getCurrentDisease();

public void setImmune();

public boolean isImmune();

public Point getPosition();

}

Movable.java

interface Movable

{

public void move(int step);

}

Now we are ready to implement any entity that we want to simulate; we will create Humans. Person Disease - currentDisease: Disease - name : String - position : Point - othersinfected: List<Susceptible> - islmmune: boolean -name: String -infection Probability: double -infection Radius: int + Disease(String, double, int) + Person(Point, String) + addToTracing(Susceptible): void + getOthersinfected(): List<Susceptible> + toString(): String + getName(): String + getinfection Probability: double + getinfectionRadius(): int + tryinfect(): boolean We can simulate any entity as long as it implements the Susceptible interface. The Person class must implement that interface (and the Movable). See the Assignment overview for the complete UML diagram. Diseases have an infection probability (from 0 to 1) and an infection radius (0+). If an infected Susceptible is less than the infection radius of another healthy susceptible, there is a risk of infection. The tryInfect method of the Disease class will use the infectionProbabilty value and the Random static variable to attempt to infect the healthy susceptible. It should return true if the healthy susceptible is now infected. The Person class is our representation of people. After someone is infected, that person will keep a list of everyone else that gets infected directly by it. Use the othersInfected instance variable. The class will also provide a way to retrieve the list of other susceptibles that were infected by that person via the getothersInfected method. The toString should only return the name. Infection behaviour: the Susceptible interface states that it is up to the concrete implementation of the interface to define the infection behaviour in the infect method. If the infect method is called on a Person object, it will infect the object if the disease's tryInfect is successful. Immune objects or objects that are already infected cannot be infected (or reinfected).

public class Point {
private int xCoordinate;
private int yCoordinate;

/**
* Creates a point at the origin (0,0) and colour set to black
*/
public Point(){
xCoordinate = 0;
yCoordinate = 0;
}

/**
* Creates a new point at a given coordinate and colour
* @param xCoordinate the X coordinate [-999,999]
* @param yCoordinate the Y coordinate [-999,999]
*/
public Point(int xCoordinate, int yCoordinate){
this.xCoordinate = xCoordinate;
this.yCoordinate = yCoordinate;
}

public int getxCoordinate() {
return xCoordinate;
}

public int getyCoordinate() {
return yCoordinate;
}

public void setxCoordinate(int xCoordinate) {
this.xCoordinate = xCoordinate;
}

public void setyCoordinate(int yCoordinate) {
this.yCoordinate = yCoordinate;
}

/**
* Translates a point in 2D space given an X and Y delta
* @param xChange the amount to translate in the X direction
* @param yChange the amount to translate in the Y direction
*/
public void translate(int xChange, int yChange){
xCoordinate += xChange;
yCoordinate += yChange;
}

/**
* Calculates the distance between two points in space
* @param p the other point
* @return the distance. Please note that are Point is unit-less
*/
public double distance(Point p){
double result = Math.sqrt(Math.pow(p.xCoordinate - xCoordinate,2) +
Math.pow(p.yCoordinate - yCoordinate,2));

return result;
}

@Override
public String toString(){
//X: x, Y: y, Colour: colour
String result = "X: " + xCoordinate + " Y: " + yCoordinate;
return result;
}

@Override
public boolean equals(Object obj) {
//if both objects are in the same memory address, they ARE the same
if(this == obj){
return true;
}

//if obj is not a Point they cannot be equal
if(!(obj instanceof Point)){
return false;
}

Point other = (Point)obj;
if(xCoordinate == other.xCoordinate &&
yCoordinate == other.yCoordinate ){
return true;
}

return false;
}

public Point copy(){
return new Point(xCoordinate,yCoordinate);

}
}
java code please

Answer 1

Hi,

please find the below code according to UML diagram.

=================================

Person.java

=================================

import java.util.List;

interface Susceptible

{

   public boolean infect(Disease disease);

   public void forceInfection(Disease disease);

   public Disease getCurrentDisease();

   public void setImmune();

   public boolean isImmune();

   public Point getPosition();

}

interface Movable

{

   public void move(int step);

}

public class Person implements Susceptible, Movable {

   private Disease currentDisease;
   private String name;
   private Point point;
   private List<Susceptible> othersInfected;
   private boolean isImmune;

   /**
   * @param name
   * @param point
   */
   public Person(String name, Point point) {
       this.name = name;
       this.point = point;
   }

   public void addToTracing(Susceptible susceptible) {
       othersInfected.add(susceptible);
   }

   public List<Susceptible> getOthersInfected() {
       return this.othersInfected;
   }

   @Override
   public void move(int step) {

   }

   @Override
   public boolean infect(Disease disease) {
       if (disease.tryInfect())
           return true;
       if (isImmune || infect(disease))
           return false;
       return false;
   }

   @Override
   public void forceInfection(Disease disease) {
       infect(disease);
   }

   @Override
   public Disease getCurrentDisease() {
       return currentDisease;
   }

   @Override
   public void setImmune() {
       this.isImmune = true;
   }

   @Override
   public boolean isImmune() {
       return isImmune;
   }

   @Override
   public Point getPosition() {
       return point;
   }

   @Override
   public String toString() {
       return "Person [name=" + name + "]";
   }

}
=====================================================

Disease.java

=====================================================

package person.disease;

public class Disease {

   private String name;
   private double infectionProbability;
   private int infectionRadius;
   private static double randomInfectionProbability;

   /**
   * @param name
   * @param infectionProbability
   * @param infectionRadius
   */
   public Disease(String name, double infectionProbability, int infectionRadius) {
       this.name = name;
       this.infectionProbability = infectionProbability;
       this.infectionRadius = infectionRadius;
       randomInfectionProbability = Math.random();
   }

   /**
   * @return the name
   */
   public String getName() {
       return name;
   }

   /**
   * @return the infectionProbability
   */
   public double getInfectionProbability() {
       return infectionProbability;
   }

   /**
   * @return the infectionRadius
   */
   public int getInfectionRadius() {
       return infectionRadius;
   }

   public boolean tryInfect() {
       if (randomInfectionProbability < getInfectionProbability())
           return true;
       return false;
   }

}

As point class is already given in the class, not providing again.

I hope this helps you!!

Thanks.