Implement the following integer methods:

a) Method Kelvin returns the Kelvin equivalent of a Celsius temperature, using the calculation Kelvin = Celsius + 273.15;

b) Method Celsius returns the Celsius equivalent of a Kelvin temperature, using the calculation Celsius = Kelvin - 273.15;

c) Use the methods from parts (a) and (b) to write an application that enables the user to enter a Kelvin temperature and display the Celsius equivalent, or, to enter a Celsius temperature and display the Kelvin equivalent.