Temparatureconvatar\

package temparaturedemo;

import java.util.Scanner;

import javax.swing.*;

public class TemparatureDemo {

    public static void main(String[] args) {
        double celsius = 0, fahrenheit=0, kalvin=0;
        Scanner sc = new Scanner(System.in);
        JFrame z = new JFrame();

        while(true)
        {
        String name=JOptionPane.showInputDialog(z,"...............Converter...............\n1.Celsius to Fahrenheit\n2.Fahrenheit to Celsius\n3.Celsius to Kalvin\n4.Kalvin to Celcius\n5.Fahrenheit to Kelvin\n6.Kalvin to Fahrenheit\n0.Exit\n\n\n.....What do you want to convert.......\nPlease enter your number : ");

        int n=Integer.parseInt(name);
        if(n==0)
        {
            break;
        }

        else if(n==1)
        {
            ctof(celsius, fahrenheit);
        }
        else if(n==2)
        {
            ftoc(celsius, fahrenheit);
        }
        else if(n==3)
        {
            ctok(celsius, kalvin);
        }
        else if(n==4)
        {
            ktoc(celsius, kalvin);
        }
        else if(n==5)
        {
            ftok(fahrenheit, kalvin);
        }
        else if(n==6)
        {
            ktof(fahrenheit, kalvin);
        }
        else
        {
        JOptionPane.showMessageDialog(null,"Your Number is Envalid");
        }
        System.out.print("\n\n\n\n");
        }
    }

    static void ctof(double c, double f)
    {
        Scanner sc = new Scanner(System.in);
        JFrame z = new JFrame();
        String name=JOptionPane.showInputDialog(z,"Enter Celsius Temparature : ");
        c=Integer.parseInt(name);
        f = (c * 9 / 5) + 32;
        JOptionPane.showMessageDialog(null,"Fahrenheit Temparature = "+f);
    }
    static void ftoc(double c, double f)
    {
        Scanner sc = new Scanner(System.in);
        JFrame z = new JFrame();
        String name=JOptionPane.showInputDialog(z,"Enter Fahrenheit Temparature : ");
        f=Integer.parseInt(name);
        c = (f - 32) * 5/9 ;
        JOptionPane.showMessageDialog(null,"Celsius Temparature = "+c);
    }
    static void ctok(double c, double k)
    {
        Scanner sc = new Scanner(System.in);
        JFrame z = new JFrame();
        String name=JOptionPane.showInputDialog(z,"Enter Celsius Temparature : ");
        c=Integer.parseInt(name);
        k = c + 273.15;
        JOptionPane.showMessageDialog(null,"Kalvin Temparature = "+k);
    }
    static void ktoc(double c, double k)
    {
        Scanner sc = new Scanner(System.in);
        JFrame z = new JFrame();
        String name=JOptionPane.showInputDialog(z,"Enter Kalvin Temparature : ");
        k=Integer.parseInt(name);
        c = k - 273.15;
        JOptionPane.showMessageDialog(null,"Celsius Temparature = "+c);
    }
    static void ftok(double f, double k)
    {
        Scanner sc = new Scanner(System.in);
        JFrame z = new JFrame();
        String name=JOptionPane.showInputDialog(z,"Enter Fahrenheit Temparature : ");
        f=Integer.parseInt(name);
        k = (f - 32) * 5/9 + 273.15;
        JOptionPane.showMessageDialog(null,"Kalvin Temparature = "+k);
    }
    static void ktof(double f, double k)
    {
        Scanner sc = new Scanner(System.in);
        JFrame z = new JFrame();
        String name=JOptionPane.showInputDialog(z,"Enter Kalvin Temparature : ");
        k=Integer.parseInt(name);
        f =(k - 273.15) * 9/5 + 32;
        JOptionPane.showMessageDialog(null,"Fahrenheit Temparature = "+f);
    }
}