import javax.swing.*;

public class Temperature3
{
    private static double convertedValue = 0.0;
    private static char convertedScale = 'F';
    
    public static void convert(double value, char scale)
    {
        if (scale == 'F')
        {
            convertedValue = 5.0/9.0*(value - 32.0);
            convertedScale = 'C';
        }
        else if (scale == 'C')
        {
            convertedValue = 9.0/5.0*value + 32.0;
            convertedScale = 'F';            
        }
        else
        {
            convertedValue = -1.0;
            convertedScale = 'I';
        }
    }
    
    private static void main(String args[])
    {
        String valueS = JOptionPane.showInputDialog("Temp value:");
        String scaleS = JOptionPane.showInputDialog("Temp scale:");
        double value = Double.parseDouble(valueS);
        char scale = scaleS.toUpperCase().charAt(0);
    
        convert(value, scale);
        
        JOptionPane.showMessageDialog(null, value + " " + scale + " = " +
                            convertedValue + " " + convertedScale);
    }
}