the abstract class desktopcomponent contains an abstract method named onclicked that is void-returning and accepts no parameters. provide the declaration of this method.

An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid