import javax.measure.Quantity; import javax.measure.Unit; import javax.measure.quantity.Length; import tech.units.indriya.quantity.Quantities; import tech.units.indriya.unit.Units; public class MeasurementExample { public static void main(String[] args) { Quantity<Length> length1 = Quantities.getQuantity(10, Units.METRE); Quantity<Length> length2 = Quantities.getQuantity(5, Units.CENTIMETRE); Quantity<Length> sum = length1.add(length2); System.out.println("Sum: " + sum); } }