Create a wind chill calculator project that can determine the wind chill tempera

Question

Create a wind chill calculator project that can determine the wind chill temperature given the Fahrenheit temperature and the wind speed. Formula for calculating wind chill temperature windChillTemperature- 35.74 0.6215 (temperature) 35.750windspeed) 0.4275 (temperature)(windspeed) To calculate the exponent use Math pow() 4.2 Math pow(4.2, 0.16) Test data: temperature of 5.3 and wind speed of 6 gives a wind chill temperature of -5.56707 Write a class definition file named WindChillCalculator that has these fields and constants: temperature wind speed constants: use two symbolic constants for 35.74 and 0.4275 Write the following methods: Two constructor methods: The no-args constructor that sets both of the field values to zero except for the constants The constants are set using the conversions given above The overloaded constructor accepts a value for the temperature and the wind speed and then calculates the value for the wind chill temperature (use the constants)

Explanation / Answer

//WindChillCalculator.java
import java.io.*;
import java.util.*;
class WindChillCalculator
{
   private static final double sym1=35.74; //first constant
   private static final double sym2=0.4275; //Second constant
   private double temperature;
   private double windspeed;
   private double windChillTemperature; //Stores the calculated windChillTemperature

   //Default constructor
   public WindChillCalculator()
   {
       temperature=0;
       windspeed=0;
   }
   //Overloaded constructor
   public WindChillCalculator(double t,double w)
   {
       temperature=t;
       windspeed=w;
       //Calculate windChillTemperature as per given formula
       windChillTemperature=sym1+(0.6215*temperature)-35.75*(Math.pow(windspeed,0.16))+(sym2*temperature*Math.pow(windspeed,0.16));
       System.out.println("WindChillTemperature :"+windChillTemperature);
   }
   //Setter method for temperature
   public void setTemperature(double t)
   {
       if(temperature!=t)
       {
           temperature=t;
           //Calculate windChillTemperature as per given formula
           windChillTemperature=sym1+(0.6215*temperature)-35.75*(Math.pow(windspeed,0.16))+(sym2*temperature*Math.pow(windspeed,0.16));
           System.out.println("Updated WindChillTemperature :"+windChillTemperature);

       }
   }
   //Setter method for windspeed
   public void setWindspeed(double w)
   {
       if(windspeed!=w)
       {
           windspeed=w;
           //Calculate windChillTemperature as per given formula
           windChillTemperature=sym1+(0.6215*temperature)-35.75*(Math.pow(windspeed,0.16))+(sym2*temperature*Math.pow(windspeed,0.16));
           System.out.println("Updated WindChillTemperature :"+windChillTemperature);
       }
   }
   //Getter method for temperature
   public double getTemperature()
   {
       return temperature;
   }
   //Getter method for windspeed
   public double getWindspeed()
   {
       return windspeed;
   }
   //toString() method returns both temperature and windspeed as a string with appropriate label
   public String toString()
   {
       return "Temperature : "+temperature+" WindSpeed : "+windspeed;
   }
}

//Wind.java
//Driver class with main() method for WindChillCalculator

import java.io.*;
import java.util.*;
public class Wind
{
   public static void main(String args[])
   {
       Scanner s=new Scanner(System.in);
       WindChillCalculator w=new WindChillCalculator();
       while(true)
       {
           //Taking choice from user and performing operation as per choice and displaying updated windChilltemperature and
           //temperature and windspeed using toString() method
           System.out.println("Choose your choice ");
           System.out.println("1.Reset Temperature");
           System.out.println("2.Reset Windspeed");
           System.out.println("3.Reset Both");
           System.out.println("Q.Exit");
           char c=s.next().charAt(0);
           if(c=='1')
           {
               System.out.println("Enter the Temperature:");
               double t=s.nextDouble();
               w.setTemperature(t);
               System.out.println(w.toString());
           }
           else if(c=='2')
           {
               System.out.println("Enter the windspeed");
               double wind=s.nextDouble();
               w.setWindspeed(wind);
               System.out.println(w.toString());  
           }
           else if(c=='3')
           {
               System.out.println("Enter the Temperature:");
               double t=s.nextDouble();
               System.out.println("Enter the windspeed");
               double wind=s.nextDouble();
           //Create new object of WindChillCalculator with overloaded constructor and assign to w
               w=new WindChillCalculator(t,wind);
               System.out.println(w.toString());  
           }
           else if(c=='Q')
           {
               break;
           }
           else
               System.out.println("Wrong choice");
       }
   }
}

Output :

G580:~/codes/schegg$ javac WindChillCalculator.java
G580:~/codes/schegg$ javac Wind.java
G580:~/codes/schegg$ java Wind
Choose your choice
1.Reset Temperature
2.Reset Windspeed
3.Reset Both
Q.Exit
3
Enter the Temperature:
5.3
Enter the windspeed
6
WindChillTemperature :-5.567068455881625
Temperature : 5.3 WindSpeed : 6.0
Choose your choice
1.Reset Temperature
2.Reset Windspeed
3.Reset Both
Q.Exit
2
Enter the windspeed
5
Updated WindChillTemperature :-4.284786065563515
Temperature : 5.3 WindSpeed : 5.0
Choose your choice
1.Reset Temperature
2.Reset Windspeed
3.Reset Both
Q.Exit
1
Enter the Temperature:
4.6
Updated WindChillTemperature :-5.1069772369387145
Temperature : 4.6 WindSpeed : 5.0
Choose your choice
1.Reset Temperature
2.Reset Windspeed
3.Reset Both
Q.Exit
Q
G580:~/codes/schegg$

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