RosettaCodeData/Task/Temperature-conversion/Java/temperature-conversion.java

32 lines
1.0 KiB
Java

public class TemperatureConversion {
public static void main(String args[]) {
if (args.length == 1) {
try {
double kelvin = Double.parseDouble(args[0]);
if (kelvin >= 0) {
System.out.printf("K %2.2f\n", kelvin);
System.out.printf("C %2.2f\n", kelvinToCelsius(kelvin));
System.out.printf("F %2.2f\n", kelvinToFahrenheit(kelvin));
System.out.printf("R %2.2f\n", kelvinToRankine(kelvin));
} else {
System.out.printf("%2.2f K is below absolute zero", kelvin);
}
} catch (NumberFormatException e) {
System.out.println(e);
}
}
}
public static double kelvinToCelsius(double k) {
return k - 273.15;
}
public static double kelvinToFahrenheit(double k) {
return k * 1.8 - 459.67;
}
public static double kelvinToRankine(double k) {
return k * 1.8;
}
}