I agree. Regarding trying hard to avoid null: maybe the InputDevice should have the hasBattery() method instead. Then the api flow would be:
InputDevice
hasBattery()
if (inputDevice.hasBattery()) { val battery = inputDevice.getBattery()
getBattery() might always be non-null, nonetheless. Just feel that query method should not be there :-)
getBattery()
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I agree. Regarding trying hard to avoid null: maybe the
InputDeviceshould have thehasBattery()method instead. Then the api flow would be:getBattery()might always be non-null, nonetheless. Just feel that query method should not be there :-)