Consider some changes or additions you could make to the PushMe class. For example, pushing the button could display your text in upper case—or it could say how many letters it contains. Maybe you...

Consider some changes or additions you could make to the PushMe class. For example, pushing the button could display your text in upper case—or it could say how many letters it contains. Maybe you could add some extra buttons. Add some additional features to the MetricConverter—for example Celsius to Fahrenheit or litres to pints.