Try catch response

[Reiyn]

I have no errors, but when you enter the number for type of temp you want to convert, it runs fine until where you enter the temp, if I enter ty(not a numerical value) it gives a numerical response, while if I eneter a numerical value, it displays the value and closes without showing the conversions...
i have the try catch in the Set functions..any ideas?

import javax.swing.*;
import javax.swing.JOptionPane;

public class Main
{
    private
            double F;
            double C;
            double K;
            int iChoice;
            
   
        public static void main( String[] args )
        {
            Main oTemp = new Main();
            oTemp.SetChoices();
        }
        
        public void SetChoices()
        {
            try
            {
                String choice = JOptionPane.showInputDialog(null, "Choose temperature input type: \n 0 to exit \n 1 for Fahrenheit \n 2 for Celsius \n 3 for Kelvin");
                iChoice = Integer.parseInt(choice);
            }
            catch  
            (
                NumberFormatException nfe)
            {
                SetChoices();
            }
            switch (iChoice) 
            {
                case 0: if (iChoice == 0)
                {
                    break;
                }
                case 1: if (iChoice == 1)
                {
                     SetFahrenheit();
                     //GetCelsius();
                     //GetKelvin();
                     break;
                }
                case 2: if (iChoice == 2)
                {
                    SetCelsius();
                    //GetFahrenheit();
                    //GetKelvin();
                    break;
                }
                case 3: if (iChoice == 3)
                {
                    SetKelvin();
                    //GetFahrenheit();
                    //GetCelsius();
                    break;
                }    
                default:
                {
                    SetChoices();
                    break;
                }
            }
    }
            
        public void SetFahrenheit() 
        {
            try
            {
                String fahrenheit = JOptionPane.showInputDialog(null, "Please enter the temperature in Fahrenheit" );
                JOptionPane.showMessageDialog(null, "You entered the temp " + fahrenheit);
                F = Double.parseDouble(fahrenheit);  
            }
            catch  
            (
                NumberFormatException nfe)
            {
                GetCelsius();
                GetKelvin();
            }
        }
        public void SetCelsius()
        {   
            try
            {
                String celsius = JOptionPane.showInputDialog(null, "Please enter the temperature in Celsius" );
                JOptionPane.showMessageDialog(null, "You entered the temp " + celsius);
                C = Double.parseDouble(celsius); 
            }
            catch  
            (
                NumberFormatException nfe)
            {
                GetFahrenheit();
                GetCelsius();
            }
        }
        public void SetKelvin()
        {   
            try
            {
                String kelvin = JOptionPane.showInputDialog(null, "Please enter the temperature in Kelvin" );
                JOptionPane.showMessageDialog(null, "You entered the temp " + kelvin);
                K = Double.parseDouble(kelvin); 
            }
            catch  
            (
                NumberFormatException nfe)
            {
                GetFahrenheit();
                GetCelsius();
            }
        }
        public void GetCelsius()
        {   
            if (iChoice == 1)
            {
                double Celsius = (5.0 / 9.0) * (F - 32);
                JOptionPane.showMessageDialog(null, "The temperature in Celsius is " + Celsius);
            }
            else if (iChoice == 3)
            {
                double Celsius = K - 273.15;
                JOptionPane.showMessageDialog(null, "The temperature in Celsius is " + Celsius);
            }
        }
        public void GetFahrenheit()
        {   
            if (iChoice == 2)
            {
                double Fahrenheit = (C * 9/5 + 32);
                JOptionPane.showMessageDialog(null, "The temperature in Fahrenheit is " + Fahrenheit);
            }
            else if (iChoice == 3)
            {
                double Fahrenheit = (K * 9/5 - 459.67);
                JOptionPane.showMessageDialog(null, "The temperature in Fahrenheit is " + Fahrenheit);
            }
        }
        public void GetKelvin()
        {   
            if (iChoice == 1)
            {
                double Kelvin = (F + 459.67) * 5/9;
                JOptionPane.showMessageDialog(null, "The temperature in Kelvin is " + Kelvin);
            }
            else if (iChoice == 2)
            {
                double Kelvin = (C + 273.15);
                JOptionPane.showMessageDialog(null, "The temperature in Kelvin is " + Kelvin);
            }
        }
    };

thanks again

[angryboy]

the catch blocks in your set methods have a logic bug. think about what you what it to do when you have a number format ex.