A community has 7 swimming pools with coordinates A(4,8), B(1,3), C(4,2), D(13,1

Question

A community has 7 swimming pools with coordinates A(4,8), B(1,3), C(4,2), D(13,1), E(12,9), F(10,5), G(6,6)

1. Create three classes: Pool, Temperature, and Location.

2. A swimming pool shall have an object of “Temperature” and an object of “Location” as data

members. (“Compositionally” speaking: A pool has-a temperature, and a pool has-a location)

3. A temperature has “degree” and “scale”.

4. A location is defined by (x, y); hence a location has an ‘x’ value and a ‘y’ value.

5. Provide ToString method for all three classes.

6. Provide other member methods for each of the classes properly . For example, a FindDistance method to find the distance between pools.

7. All methods shall be public.

8. The Pool class shall have a static data member ‘Count’ The driver program shall print out the static member count before any pool object is created, and also after each pool is instantiated.

9. A maintenance crew can set the temperature for each pool within the range of 98 oF and

104 oF.

Note: generate a random number between [98, 104].

10. A maintenance person will go through all seven pools and set the temperatures. The person starts from location (0,0), and will go to the nearest pool after she/he finishes the job. The process continues until all the pools are visited. Each pool can only be visited once.

Your driver program determines and displays the route she/he takes to visit all the pools

Explanation / Answer

// Pool.java

public class Pool {
   private static int count;
   public Pool() {}
   public Pool(Temperature temp, Location location) {
       count++;
       this.temp = temp;
       this.location = location;
   }
  
  
  
   private Temperature temp;
   private Location location;
  
   public int getCount()
   {
       return count;
   }
  
   public Temperature getTemp() {
       return temp;
   }
   public void setTemp(Temperature temp) {
       this.temp = temp;
   }
   public Location getLocation() {
       return location;
   }
   public void setLocation(Location location) {
       this.location = location;
   }
   @Override
   public String toString() {
       return "Pool [temp=" + temp + ", location=" + location + "]";
   }
  
   public double findDistance(Pool pool)
   {
       return location.findDistance(pool.getLocation());
   }
}

// Temperature.java

public class Temperature {
  
   public Temperature() { this(0);}
   public Temperature(double degree) {
       this.degree = degree;
       this.scale = "F";
   }
   private double degree;
   private String scale;
   public double getDegree() {
       return degree;
   }
   public void setDegree(double degree) {
       this.degree = degree;
   }
   public String getScle() {
       return scale;
   }
   public void setScle(String scale) {
       this.scale = scale;
   }
   @Override
   public String toString() {
       return "Temperature [" + degree + "o" + scale + "]";
   }
  
}

// Location.java

public class Location {
   public Location(int x, int y) {
       this.x = x;
       this.y = y;
   }
   private int x;
   private int y;
   public int getX() {
       return x;
   }
   public void setX(int x) {
       this.x = x;
   }
   public int getY() {
       return y;
   }
   public void setY(int y) {
       this.y = y;
   }
   @Override
   public String toString() {
       return "Location [x=" + x + ", y=" + y + "]";
   }
  
   public double findDistance(Location l)
   {
       return Math.sqrt(Math.pow((x - l.getX()), 2) + Math.pow((y-l.getY()), 2));
   }
  
}

// PoolTest.java

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class PoolTest {
public static void main(String[] args){
   Random rn = new Random();
     
   int temp;
   temp = rn.nextInt(7) + 98;
     
   Temperature t = new Temperature();
     
   List<Pool> poolList = new ArrayList<Pool>();
     
   Location l1 = new Location(4, 8);
   Pool p1 = new Pool(t, l1);
   poolList.add(p1);
     
     
     
   Location l3 = new Location(1, 3);
   Pool p3 = new Pool(t, l3);
   poolList.add(p3);
     
   Location l4 = new Location(4,2);
   Pool p4 = new Pool(t, l4);
   poolList.add(p4);
     
   Location l5 = new Location(13, 1);
   Pool p5 = new Pool(t, l5);
   poolList.add(p5);
     
   Location l6 = new Location(12, 9);
   Pool p6 = new Pool(t, l6);
   poolList.add(p6);
     
   Location l7 = new Location(10, 5);
   Pool p7 = new Pool(t, l7);
   poolList.add(p7);
     
   Location l2 = new Location(6, 6);
   Pool p2 = new Pool(t, l2);
   poolList.add(p2);
     
   Location loc = new Location(0, 0);
     
   for(int i = 0; i < 7; i++)
   {
       Pool p = findNearest(loc, poolList);
       temp = rn.nextInt(7) + 98;
       p.getTemp().setDegree(temp);
       System.out.println("Setting temerature of " + p);
       loc = p.getLocation();
       poolList.remove(p);
   }
     
}
  
public static Pool findNearest(Location l, List<Pool> poolList)
{
   double distance = 100000000;
   Pool pool = new Pool();
   for (Pool p : poolList)
   {
       double calcDistance = p.getLocation().findDistance(l);
       if (calcDistance < distance)
       {
           distance = calcDistance;
           pool = p;
       }
   }
   return pool;
}
}

// Sample run

Setting temerature of Pool [temp=Temperature [98.0oF], location=Location [x=1, y=3]]
Setting temerature of Pool [temp=Temperature [102.0oF], location=Location [x=4, y=2]]
Setting temerature of Pool [temp=Temperature [103.0oF], location=Location [x=6, y=6]]
Setting temerature of Pool [temp=Temperature [101.0oF], location=Location [x=4, y=8]]
Setting temerature of Pool [temp=Temperature [101.0oF], location=Location [x=10, y=5]]
Setting temerature of Pool [temp=Temperature [103.0oF], location=Location [x=12, y=9]]
Setting temerature of Pool [temp=Temperature [98.0oF], location=Location [x=13, y=1]]

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.