all tasks

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

@@ -0,0 +1,31 @@
+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", kelvinToCelcius(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 kelvinToCelcius(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;
+    }
+}