switch

package temperature;
import out.*;

public class TemperatureConverter {
    public void convertTemp
            (int temperature, char convertTo){
        switch (convertTo){
            case 'F':
                Print.print(temperature+" F");
                break;
            case 'C':
                Print.print(temperature+" C");
                break;
            case 'K':
                if (temperature<0){
                    Print.print("no, K can't be 0<!");
                }else {
                    Print.print(temperature+" K");
                }
                break;
            default: Print.print("need F, C or K");
        }
    }
    public static void main(String[] args){
        TemperatureConverter temp = new TemperatureConverter();
        temp.convertTemp(-1, 'K');
    }
}