Question

To begin with I have three classes. One called:

1. Temperature (superclass)

2. Weather (subclass superclass)

3. UseTemperature (subclass that holds main method)

For this program the main method is only supposed to display the temperature in Celsius and wind speed. I do not know what the issue is though..

My issue is that setWindSpeed/getWindSpeed cannot be found within UseTemperature.

//TEMPERATURE:

public class Temperature
{
    private double degrees;


    public void setDegrees (double degrees)
    {
        this.degrees = degrees;
    }


    public double getDegrees ()
    {
        return degrees;
    }

/////////////////////////////////////////////////////////////////////////////////////////
//WEATHER:

public class Weather extends Temperature
{
    private double windspeed; // Number + km/h

    private void setWindSpeed (double windspeed) //setter
    {
        this.windspeed = windspeed;
    }


    public double getWindSpeed ()  //getter
    {
        return windspeed;
    }
}
/////////////////////////////////////////////////////////////////////////////////////////
//USE TEMPERATURE:

class UseTemperature // can be public but makes no diffrence
{
    public static void main (String args[])
    {
        Temperature temp;

        temp = new Temperature ();

        temp.setDegrees (40.0);      
        temp.setWindSpeed (70.0); // NOT FOUND IN TEMPERATURE

        System.out.print (temp.getDegrees ());
        System.out.print (" degrees ");

        System.out.println (temp.getWindSpeed()); // NOT FOUND IN TEMPERATURE
        System.out.println (" km/h");

    }
}

Answer 1

The class Temperature does not contain the methods setWindSpeed or getWindSpeed. You would need to create a Weather object and make those methods accessible to call them.

Weather myWeather = new Weather();
// set/get ...