javalab14.java

import java.util.Scanner;

import javax.sound.sampled.SourceDataLine;

abstract class temperature{
    double temp;
    void setTempData(double par){
        temp=par;
    }
    abstract void changeTemp();
}

class fahreneit extends temperature{
    double ctemp;

    void changeTemp(){
        ctemp = (5.0/9.0)*(temp-32);
        System.out.println("Temperature in celsius : " + ctemp + "°C");
    }
}

class celsius extends temperature{
    double ftemp;

    void changeTemp(){
        ftemp = (9.0/5.0)*temp+32;
        System.out.println("Temperature in fahreneit : " + ftemp + "°F");
    }
}

public class javalab14 {
    public static void main(String []st){
        Scanner sc = new Scanner(System.in);

        temperature ob;
        fahreneit ob1 = new fahreneit();
        celsius ob2 = new celsius();

        ob = ob1;
        System.out.println("Enter temperature value in fahreneit:");
        int Temperature =sc.nextInt();
        ob.setTempData(Temperature);
        ob.changeTemp();

        ob = ob2;
        System.out.println("Enter temperature value in celsius:");
        Temperature =sc.nextInt();
        ob.setTempData(Temperature);
        ob.changeTemp();
        sc.close();
    }
}